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Estidama Pearls Design System New Buildings Rating Method: August 2009, Version 1.0 72 of 386

LS-6: Cumulative Carbon Reduction &Life Cycle Assessment

Credit PointsAvailable: 4

Intent To minimise ’cradle to cradle’ embodiedenvironmental and greenhouse impacts ofthe building from construction throughoperations.

CreditRequirements

Demonstrate that a comprehensive whole building life cycle assessment(LCA) has been developed and used to make design and constructiondecisions for the project resulting in an improved and more efficientperformance over a baseline building using either kg/C02e/m2 or LCA Eco-indicator 99 Eco-points as a proxy metrics.

1 CREDIT POINT is available if the project assesses as a minimum:Building energy use: CO2 from building energy use and any on-siteenergy generation (data must correspond to findings in RE-2)Water: CO2 impacts of water use (data must correspond to findingsin PW-3)GHG Impacts of Refrigerants & Fire Systems: (data must correspondto fugitive emissions of refrigerants and fire systems if not specifiedin accordance with RE-7)Materials: CO2 impacts associated with building materials choices(data must correspond to materials LCA findings in the AlternativeCompliance Path for SM- 1 to SM-5).

3 ADDITIONAL CREDIT POINTS are also available if the project assesses asa minimum:

Building whole of life, whole of environment impacts calculatedWater: WOL impacts of water use (data must correspond to findingsin PW-3)Energy: WOL impacts of Carbon (data must correspond to findingsin RE-1 & RE-2)GHG Impacts of Refrigerants & Fire Systems: (data must correspondto fugitive emissions of refrigerants and fire systems if not specifiedin accordance with RE-7)Materials: WOL impacts associated with building materials choices(data must correspond to materials LCA findings in the AlternativeCompliance Path for SM- 1 to SM-5).

1 CREDIT POINT TOTAL = Building GHG (in kg/C02e/m2 ) or

3 ADDITIONAL CREDIT POINTS = WOL Building Ecopoint Calculated

Awarding CreditPoints:

Credit Points are awarded at the Conditional Design, Design and LivingRating Stages. Credit Points are the same for all Types.

There is one level of achievement. Up to three Additional Credit Points areavailable.

Credit Points will be awarded as follows:


POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating

1 Demonstrate a whole building Carbon assessment has beendeveloped and used to make design and construction decisionsto minimise carbon intensity of building.

3 – Demonstrate a building WOL LCAmodel has been developed and used to make design andconstruction decisions to minimise WOL impacts of building

Design Rating1 Update whole building Carbon assessment to ‘As built’ status to

demonstrate carbon content of constructed building showingany changes did not increase carbon impact..

3 Update building WOL LCA assessment to ‘As built’ status todemonstrate carbon content of constructed building andshowing any changes did not increase WOL impacts..

Living Rating1 Update whole building Carbon assessment to capture

maintenance and cleaning strategies to demonstrate carboncontent of constructed and maintained building showing anychanges did not increase carbon impact..

3 Update building WOL LCA assessment to capture maintenanceand cleaning strategies to demonstrate WOL impacts ofconstructed and maintained building showing any changes didnot increase WOL LCA impacts..

CreditSubmission:Conditional

Design Rating

Provide the following documentation:

A summary report including narrative and graphic representation of eithercarbon intensity or integrated whole-of-life (WOL) LCA modelling of thebuilding structure, components and operational impacts includingmaintenance and cleaning requirements over 50-year life includingdeconstruction and resource recovery value (i.e. a ‘cradle to cradle’analysis) in accordance with overall approach in SM 1-5 AlternativeCompliance Path: Lifecycle Impacts of Materials.

The report should break down and illustrate graphically, impacts andsavings compared to BAU benchmark of each major building element,group and stage as well as overall totals. It should also show history of howeither carbon or LCA modelling was used to scenario test construction andcomponent options to minimise overall building carbon or Life cycleimpacts.

For WOL LCA of impacts, in addition to providing the Ecopoint, reportsshould also provide individual performance data for Human Health,Environmental Quality and Resource Depletion impacts.

CreditSubmission:

Design Rating


An updated summary report confirming either carbon intensity or integratedwhole-of-life (WOL) LCA modelling (as relevant) of the ‘As Built’constructed building based on Conditional Design report


Demonstrate either :the carbon content of the constructed building, showing anychanges did not increase carbon impacts, orthe WOL LCA assessment of the constructed building, showing anychanges did not increase WOL impacts.

CreditSubmission:

Living Rating


Provide an updated summary report confirming either carbon intensity orintegrated whole-of-life (WOL) LCA modelling (as relevant) to capturemaintenance and cleaning strategies to demonstrate either:

the carbon content of constructed and maintained buildingshowing any changes did not increase carbon impact.. orthe WOL LCA assessment to capture maintenance and cleaningstrategies to demonstrate WOL impacts of constructed andmaintained building showing any changes did not increase WOLLCA impacts..

Calculations andMethodology

RE-r6 Energy ModelPW-r3 Water ModelPW-3 Reduced Carbon Impact of WaterRE-1 Energy Conservation Improvement: Carbon ReductionRE-2 Net Positive Energy GenerationRE-7 Global Warming Impacts of Refrigerants and Fire SystemsSM 1-5 Cumulative Carbon Reduction and Lifecycle Assessment

RelatedResources and

References

ISO 14040See Design Guide


LB-r1: Outdoor Thermal Comfort Requirement

Intent To reduce heat in urban open space through passive cooling strategies.

Credit Requirements Demonstrate that:The hard surface trafficable open space areas around buildings(driveways, parking, pedestrian walkways, and courtyards)within the site boundaries are provided with a minimum 75%of the hard surface area in projected shade measured at 1:00pm at the Equinox,Semi-enclosed or enclosed areas provided with breezeopenings on two approximately opposing sides to allow airmovement.

An outdoor thermal comfort strategy has been employed toimprove the building’s exterior microclimate throughtemperature-modifying tools such as vegetated walls,permanently mounted exterior ceiling or other ventilation fansor air movement techniques and the prudent use of mistingsystems or water features.

RequirementAchievement

This is a requirement. There are no Credit Points awarded.

Achievement of this requirement is fulfilled by submitting the drawingsand report described below.

Credit Submission:Conditional Design


Plan drawings of the trafficable area, showing shading devicesincluding planned or existing materials and their colours, andtrees and breeze openings

A report including an architectural three dimensionalperspective model calculating shade projections of onsitepedestrian trafficable areas for the dates noted above. Themodel illustration must include surrounding solar shading fromadjoining buildings or built structures (where relevant) andApproved Developments (also where relevant).

Credit Submission:Design Rating

Provide the following documentation:As-built drawings of trafficable area, showing all shadingdevices and their colours, installed tress and breeze openingswith projected shade calculations demonstrating shadecoverage of 75% of the hard surface areas at the nominatedtime.

A report including an architectural three dimensionalperspective model calculating shade projections of onsitepedestrian trafficable areas for the dates noted above. Themodel illustration must include surrounding solar shading fromadjoining buildings or built structures (where relevant) andApproved Developments (also where relevant). Shading fromexisting trees can be included and newly planted tress treesmay be projected up to a five-year growth equivalent.


Credit Submission:Living Rating

Provide a report demonstrating the results of the outdoor thermalcomfort strategy employed to improve the building’s exteriormicroclimate.


Shading from trees may be included in the calculation provided thetrees installed as part of development are at least three years old and areirrigated if necessary for growth.

Shading affects of trees must consider the trees to have reached 70% oftheir expected mature size.

Breeze openings must be equivalent to 5% of the total of any semi-enclosed space’s perimeter, and between 120 and 240 horizontaldegrees of one another (if only two openings).

The required percentage of opening sizes shall be divided between thelargest and the smallest to facilitate effective air movement.

Related Resourcesand References

See Design Guide. Computational fluid dynamic (CFD) calculationsmay be suggested when the geometry or height of the semi-enclosedspaces dictate.


LB-r5: Healthy Ventilation Sources Requirement

Intent To protect the quality of air drawn into buildings for ventilation and toensure the air within the immediate public domain around buildings isnot contaminated by local exhaust emissions from buildings orcarparks.

Credit Requirements Demonstrate that the building mechanical system meets the followingrequirements:

Air intakes for supplying outside air to occupied spaces are aminimum of 10 m from exhausts and discharges (i.e. coolingtowers and other exhaust points).Exhaust points are located outside of defined public realm.Exhaust points are a minimum of 10 m above the groundplane.



Achievement of this requirement is fulfilled by submitting thedocumentation described below.


Provide mechanical system drawings marked-up to clearly showdistances between air intake points and exhaust air points and thedistances from the air exhaust points to the ground plane and publicrealm areas.


Provide as-built mechanical system drawings marked-up to clearlyshow distances between air intake points and exhaust air points andthe distances from the air exhaust points to the ground plane andpublic realm areas.


There is no required submission at this stage of rating.


Distances should be measure horizontally or vertically and in theaggregate.


See Design Guide


LB-r6: Building Ventilation for Comfort Requirement

Intent To ensure that buildings are capable of using natural ventilation.

Credit Requirements Prescriptive Requirement

Office and ResidentialDemonstrate the building has a 5% ratio of clear open area of operablewindows/grilles to occupied area with individual control operationalfrom within the floorspace.

This credit does not apply to retail buildings.

Performance Requirement

Demonstrate the building is designed in accordance with ASHRAE62.1:2007 Section 5.1

Demonstrate natural ventilation (litres per second per occupant) bycomputational fluid dynamic modelling.





Rating


Prescriptive Requirement

Short report prepared by a suitably qualified engineerdescribing how the project meets the Requirements.Elevations and floor plans showing all façade and floor areasfor each relevant level, clearly marked-up to show allappropriate distances and window control mechanismlocations.


Computational fluid dynamic (CFD) modelling report showinghow the project meets the Credit Requirements in accordancewith required parameters in Calculations and Methodologysection below.



Short report prepared by a suitably qualified engineerdescribing how the project meets the Requirements.As-built elevations and floor plans showing all façade andfloor areas for each relevant level, clearly marked-up to showall appropriate distances and window control mechanismlocations.



Computational fluid dynamic (CFD) modelling report showinghow the project meets the Credit Requirements in accordancewith required parameters in Calculations and Methodologysection below. Any changes to the final building from theoriginal design must be included in the final model.



ResidentialOperable windows calculation must apply to overall unit area andeach individual occupied spaces excluding: laundries andbathroom/toilets. Kitchens can benefit from shared ventilation via partheight walls adjoining other occupied spaces with windows, butkitchen area is to be included in the overall calculation of ventilationrequirements.

CFD: Requirements to be determined - Nominally typical conditionsfor mid March/mid November at 9.00am and 3.00pm for alltypologies, and at least 10l/s/person of outside air must be achieved.


See Design Guide


LB-19: Outdoor Air Ventilation Credit PointsAvailable: 3

Intent To promote the provision of building systems that support the well-being and comfort of occupants by providing sufficient outside airventilation.

Credit Requirements Demonstrate that 95% of the occupied area meets the following, asappropriate:

Offices, retail and residential buildings over 3 storeys

Mechanical VentilationDemonstrate that outdoor air ventilation rates meets or exceeds theminimum thresholds set out in ASHRAE 62.1:2007, as follows:

1 CREDIT POINT = meets the minimum requirements2 CREDIT POINT = 30% above minimum requirement3 CREDIT POINT = 60% above minimum requirement

Mixed mode Ventilation

Demonstrate compliance with the Credit Requirements for bothmechanically ventilated buildings above as well as CISBE ApplicationsManual 10:2005 for naturally ventilated buildings. Demonstrate alsorelevant enthalpy recovery initiatives:

Low rise residential buildings

As per ANSI/ASHRAE 62.2:2007 as it relates to multi-unit residentialdevelopments under three storeys, but excepting single dwellings.Demonstrate also relevant enthalpy recovery initiatives.

Awarding CreditPoints


There are three levels of achievement.


POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Ventilation meets minimum requirements2 Ventilation exceeds minimum requirements by 30%3 Ventilation exceeds minimum requirements by 60%

Design Rating1 Ventilation meets minimum requirements2 Ventilation exceeds minimum requirements by 30%3 Ventilation exceeds minimum requirements by 60%

Living Rating1 Ventilation meets minimum requirements2 Ventilation exceeds minimum requirements by 30%3 Ventilation exceeds minimum requirements by 60%

Credit Submission: Provide the following documentation:


Conditional DesignRating

Mechanical VentilationSummary report describing how the mechanical design systemmeets the Credit Requirements, including outside air rates,plant size and ventilation systemModelling reportDrawing of mechanical system, including an air schematicclearly indicating ventilation systems, including air handlingunits, fans and enthalpy recovery units.

Mixed mode VentilationAll Credit Submissions for mechanically ventilated buildings asnoted above.Calculations demonstrating the project complies with CISBEApplications Manual 10:2005.

The calculations/simulations shall cover at least one representativesample of each type of premises (occupied areas only).



Mechanical VentilationSummary report describing how the mechanical design systemmeets the Credit Requirements, including outside air rates,plant size and ventilation systemModelling reportAs-built drawing of mechanical system, including an airschematic clearly indicating ventilation systems, including airhandling units fans and enthalpy recovery units.

Mixed mode VentilationAll Credit Submissions for mechanically ventilated buildings asnoted above.Calculations demonstrating the project complies with CISBEApplications Manual 10:2005.

The calculations/simulations shall cover at least one representativesample of each type of premises (occupied areas only).

All reports and calculation included in the Conditional DesignSubmission can be resubmitted provided there have been to changes tothe design.



Audit report confirming the mechanical design system meetsoperational commitments made for Credit Points, includingoutside air rates, plant, ventilation and enthalpy recoverysystem operation.Where Credit LB-40 has been undertaken Commissioningagents 2nd year of operation report will suffice provided auditreport provides statement physical arrangements remainunchanged since Design Rating.


ANSI/ASHRAE 62.1:2007 Ventilation and Acceptable Indoor AirQualityANSI/ASHRAE 62.2:2007 Ventilation and Acceptable Indoor AirQuality in Low Rise Residential


See Design Guide


LB-20: Air Change Effectiveness Credit PointsAvailable: 1

Intent To promote the provision of building systems that support thewellbeing and comfort of occupants by providing sufficient ventilationdelivered in an effective manner.

Credit Requirements Demonstrate that occupants are receiving optimum air quality throughthe air change effectiveness in 95% of the occupied spaces, as follows:

Mechanical VentilationCalculations or CFD simulations as per ASHRAE F25-33 & 34(2005) or IAQ2007-34 (i.e. the air exchange effectiveness innormally occupied spaces is equal to or greater than 0.95)

OR

Use of a displacement ventilation system meeting the followingcriteria:o The system covers at least 95% of the occupied area.o Low level supply outlets are evenly distributed.o Outlet diffusers are provided every 10m throughout the

occupied area.o High level exhaust grilles are provided at least every 50m².

Mixed Mode Ventilation

Demonstrate compliance with requirements for mechanicallyventilated spaces above and demonstrate through CFD model adistribution and laminar flow pattern for at least 90% of each area inthe direction of air flow.


Credit Points are awarded at the Conditional Design, Design andLiving Rating Stages. Credit Points are the same for all Types.

There is one level of achievement. No Additional Points are available.


POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Demonstrate compliance with air change effectiveness

criteriaDesign Rating

1 Demonstrate compliance with air change effectivenesscriteriaLiving Rating

1 Demonstrate compliance with air change effectivenesscriteria


Rating



Where Calculations or CFD simulations are used

Report detailing the design criteria that has been adopted foreach category of premises included in the development, andthe results of calculations and/or simulations in the specifiedsample of premises to demonstrate compliance with theassessment criteria (see Calculations and Methodology).Drawings showing the mechanical ventilation system

Where a displacement ventilation system is used

Drawings showing the mechanical ventilation system andlocations of all outlets, diffusers and exhaust grilles.



Mechanical Ventilation

Where Calculations or CFD simulations are used

Report detailing the design criteria that has been adopted foreach category of premises included in the development, andthe results of calculations and/or simulations in the specifiedsample of premises to demonstrate compliance with theassessment criteria.Drawings showing the mechanical ventilation system

Where a displacement ventilation system is used

Drawings showing the mechanical ventilation system andlocations of all outlets, diffusers and exhaust grilles.

Mixed mode Ventilation

All documentation as above for mechanically ventilatedbuildingsCFD model demonstrating compliance with the CreditRequirements (see Calculations and Methodology).



Extract from LB-40 Commissioning report verifying the HVACsystem is operating as intended.

OR

System Tuning Report provided by competent mechanicalengineer stating the ventilation effectiveness meets the CreditRequirements.

ANDIf the systems or controls do not continue to operate asintended, rectification work undertaken to ensure theoperation is restored to certified Design Rating functionalitylevels.



The modelling locations shall include at least one representativesample of each type of premises (normally occupied spaces) as definedby the type of HVAC system used, design occupancy density, nature ofusage, zoning, etc. modelling is required at the occupied zone in eachrepresentative test space in accordance with ASHRAE.

Modelling is required to be undertaken under simulated fulloccupancy conditions. All airstreams of the air-side system serving thespace shall have a constant flow rate to the degree practical (e.g. thedifference between the maximum and minimum should be within10%). Where the air change effectiveness is demonstrated to be equalor greater than 0.95, and matches the design intent in all sampledpremises, the credit shall be awarded.


American Society of Heating Refrigeration and Air ConditioningEngineers. ASHRAE Fundamentals Handbook 2005 – Chapters 33 & 34American Society of Heating Refrigeration and Air ConditioningEngineers. ANSI/ASHRAE Standard 129 (RA 2002). Measuring Air-change Effectiveness. Atlanta 1997IAQ2007-34 Calculation of Ventilation Effectiveness for the NewCalifornian Academy of Sciences of San Francisco

See Design Guide


LB-21: Microbial and Humidity Control Credit PointsAvailable: 1

Intent To promote the provision of building systems that supports thewellbeing and comfort of occupants by controlling humidity in theventilation system.

Credit Requirements Demonstrate that the mechanical ventilation system actively controlshumidity to 95% of the occupied area as follows:

60% relative humidity in the occupied areasLess than 80% relative humidity in the supply ductwork.





POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Demonstrate active humidity control in ventilation system

Design Rating1 Demonstrate active humidity control in ventilation system

Living Rating1 Demonstrate active humidity control in ventilation system


Rating


Short report describing how the project meets the CreditRequirements, including a psychometric chart showing theair conditions at each stage (room air, outside air, air-on, air-off coil, air from diffuser). This must be completed for twoconditions:

o when the air-on condition has the greatest enthalpyo when the air-on conditions have the greatest

temperatureMechanical drawings showing relative humidity sensors andextract from the BMS control specification detailing howhumidity requirements are to be achieved.



Short report demonstrating that the project meets the CreditRequirements, including a psychometric chart showing theair conditions at each stage (room air, outside air, air-on, air-off coil, air from diffuser). This must be completed for twoconditions:


temperature


As-built mechanical drawings showing relative humiditysensors and extract from the BMS control specificationdetailing how humidity requirements are to be achieved.

The psychometric chart submitted for the Conditional Design Ratingmay be submitted where there has been no change to the design andcommissioning has shown that the design conditions are beingachieved.



Short report demonstrating that the project meets the CreditRequirements, including a psychometric chart showing theair conditions at each stage (room air, outside air, air-on, air-off coil, air from diffuser). This must be completed for twoconditions:


temperatureThe psychometric chart submitted for the Design Rating may besubmitted where there has been no change to the design andrecommissioning has shown that the design conditions are beingachieved.

ORExtract from LB-40 Commissioning report verifying the HVACsystem is operating as intended.

ANDIf the systems or controls do not continue to operate asintended, rectification work undertaken to ensure theoperation is restored to certified Design Rating functionalitylevels.


Not applicable


ANSI/ASHRAE 62.2:2007 Ventilation and Acceptable Indoor AirQualitywww.ashrae.org

See Design Guide

http://www.ashrae.org


LB-22: Thermal Zones Credit PointsAvailable: 2

Intent To reward projects that use thermal zoning of the ventilation system toprovide improved occupant comfort and energy efficiency.

Credit Requirements Demonstrate that 95% of the nominated area has separately controlledthermal zones, as follows:

OfficesSeparate zones and controls for every 100m2 of common office spaceand for individual offices and meeting rooms

RetailSeparate zones for each tenancy.

ResidentialSeparate controls for living areas and bedrooms.





POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating2 95% of nominated area has separately controlled thermal

zonesDesign Rating

2 95% of nominated area has separately controlled thermalzonesLiving Rating

2 95% of nominated area has separately controlled thermalzones


Rating


Brief narrative describing how the project meets the CreditRequirements. Zoning information provided must match theinformation provided in Credit RE-r6 Energy Model.Plans/drawings of the mechanical ventilation systems, clearlyindicating zone boundaries and zone sizes.



Brief narrative describing how the project meets the CreditRequirements. Zoning information provided must match theinformation provided in Credit RE-r6 Energy Model.As-built plans/drawings of the mechanical ventilation systems,clearly indicating zone boundaries and zone sizes.



Provide the following documentation:Extract from LB-40 Commissioning report verifying theindividual zones continue to operate as intended.

ORSummary Audit report demonstrating the ongoing successfuloperation of the thermal zone controls

ANDIf the systems or controls do not continue to operate asintended, rectification work undertaken to ensure theoperation is restored to certified Design Rating functionality.


Living Rating stage Audit report may be provided by appropriatelyqualified mechanical consultant, including a company involved in thedesign team, provided it is not undertaken by an individual included inthe design team.


See Design Guide


LB-23: Occupant Comfort and Control Credit PointsAvailable: 2

Intent To reward projects that provide personally directed thermal comfortand control to occupants.

Credit Requirements OfficeDemonstrate individual supply and control of air supply, rates, airtemperature, or radiant temperature, as follows:


The ventilation/temperature control system allows for individualoccupant delivery and control of one or more of the following items:

Air temperatureAir flow, humidityMean radiant temperature

1 CREDIT POINT = 50% of the occupied area2 CREDIT POINTS = 95% of the occupied area

User controls are defined as an individually controllable ventilationopening of not less than 0.75m² for a standard air conditioningsolution together with individual temperature control or 0.01m2 ifindividual workstation mounted vents with volume/velocity controls.

Mixed-mode Ventilation

Compliance with requirements above for mechanically ventilatedbuildings and the provision of operable windows as per ASHRAE 62.1-2004, paragraph 5.1 Natural Ventilation for at least 50% of theoccupied area.


Credit Points are awarded at the Conditional Design, Design andLiving Rating Stages. Credit Points available vary by Type. There aretwo levels of achievement. No Additional Credit Points are available.


POINTS by TYPE REQUIREMENTSOffice Retail Res Conditional Design Rating

1 N/A N/A 50% of occupied area has individual aircontrol

2 N/A N/A 95% of occupied area has individual aircontrol

Design Rating1 N/A N/A 50% of occupied area has individual air

control2 N/A N/A 95% of occupied area has individual air

control

Living Rating1 N/A N/A 50% of occupied area has individual air

control2 N/A N/A 95% of occupied area has individual air

control



Rating


Mechanical Ventilation:Brief narrative describing how the project meets the CreditRequirements.Mechanical system drawings of locations of diffusers, chilledbeams, access floors and vents together with thermostats orother individual control devices.BMS point schedule

Mixed-mode Ventilation:

All documentation as above for mechanical ventilation.Drawings and elevations clearly indicating the size andlocation of ventilation openings and ventilation controls.



Mechanical Ventilation:Brief narrative describing how the project meets the CreditRequirements.As-built mechanical system drawings of locations of diffusersand thermostats or other individual control devicesBMS point schedule

Mixed-mode Ventilation:

All documentation as above for mechanical ventilation.As-built drawings and elevations clearly indicating the sizeand location of ventilation openings and ventilation controls.


Provide the following documentation:Extract from LB-40 Commissioning report verifying theindividual comfort controls continue to operate as intended.

ORSummary Audit report demonstrating the ongoing successfuloperation of the thermal zone controls.

ANDIf the systems or controls do not continue to operate asintended, rectification work undertaken to ensure theoperation is restored to certified Design Rating functionality.




See Design Guide


LB-24: Thermal Comfort Modelling Credit PointsAvailable: 2

Intent To reward projects that are designed to provide optimal thermal comfortfor their use.

Credit Requirements Demonstrate that thermal modelling on the building design has beenperformed to ensure a thermally comfortable environment for buildingoccupants, as follows:

Office and Residential

Demonstrate that the Predicted Mean Vote(PMV) levels, calculated in accordance with ISO 7730, are achievedduring Standard Operating Hours of Occupancy for 98% of the yearusing standard clothing and metabolic rate value:

1 CREDIT POINT = PMV levels between -1 and +12 CREDIT POINTS = PMV levels are between -0.5 and +0.5

Demonstrate compliance with requirementsabove for mechanically ventilated buildings and from 21st Nov to 21st

March, with ASHRAE 55-2004.

Retail

: Demonstrate that the Predicted Mean Vote(PMV) levels, calculated in accordance with ISO 7730, are achievedduring Standard Operating Hours of Occupancy for 98% of the yearusing standard clothing and metabolic rate value:1 credit point = PMV levels between -1.5 and +1.5, inclusive2 credit points = PMV levels are between-1 and +1, inclusive

Demonstrate compliance with requirementsabove for mechanically ventilated buildings and, from 21 Nov to 21March, with ASHRAE 55-2004.


Credit Points are awarded at the Conditional Design, Design and LivingRating Stages. Credit Points are the same for all types

There are two levels of achievement. No Additional Credit Points areavailable.



POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Office and Residential: PMV levels between -1 and +1

Retail: PMV levels between -1.5 and +1.52 Office and Residential: PMV levels between -0.5 and

+0.5Retail: PMV levels between -1 and +1

Design Rating1 Office and Residential: PMV levels between -1 and +1

Retail: PMV levels between -1.5 and +1.52 Office and Residential: PMV levels between -0.5 and

+0.5Retail: PMV levels between -1 and +1

Living Rating1 Office and Residential:

Retail:2 Office and Residential:

Retail:


Rating


Credit Submission: Conditional Design RatingProvide the following documentation:

Mechanical Ventilation:Report describing thermal comfort design conditions and how theproject meets the conditions set forth in the referenced standard andmeets the Credit Requirements.

Mixed Mode Ventilation:Report as above for mechanical ventilationReport demonstrating compliance with ASHRAE 55-2004 from21 November to 21 March.



Mechanical Ventilation:Updated Report describing thermal comfort design conditions achievedand how the project meets the conditions set forth in the referencedstandard and meets the Credit Requirements.

Mixed Mode Ventilation:Report as above for mechanical ventilationReport demonstrating compliance with ASHRAE 55-2004 from21 November to 21 March.




Extract from LB-40 Commissioning report verifying theindividual zones continue to operate as intended.

ORSummary Audit report demonstrating the ongoing successfuloperation of the thermal zone controls

ANDIf the systems or controls do not continue to operate asintended, rectification work undertaken to ensure the operationis restored to certified Design Rating functionality.



Calculate in accordance with ISO 7730 or ASHRAE 55-2004, asapplicable.


ISO 7730ASHRAE Standard 55-2004 -- Thermal Environmental Conditions forHuman OccupancySee Design Guide.


LB-30: Indoor Air Pollution Exhaust Credit PointsAvailable: 1

Intent To encourage the provision of building systems that remove or preventthe build up of pollutants from indoor air.

Credit Requirements Demonstrate the building includes a dedicated indoor pollutionexhaust riser with the following characteristics:

Provides no less than 0.2 L/s/m² for 100% of the occupiedspaceHas a capacity of 0.35 L/s/m² for 100% of occupied space onany individual floor andThe exhaust system is not recycled to other enclosures ofdifferent useThe risers and/or individual exhausts discharge externally.

In the case of individual occupied spaces, systems shall comply withANSI/ASHRAE 62.2:2007, Table 6-4 Individual Exhaust Rates.





POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Provide a dedicated tenant exhaust riser meeting the credit

requirements.

Design Rating1 Provide a dedicated tenant exhaust riser meeting the credit

requirements.

Living Rating1 Provide a dedicated tenant exhaust riser meeting the credit

requirements.


Rating


Brief narrative explaining how the project meets the creditcriteria.Drawings of exhaust system for a typical entire floor.


Provide the following documentation:Brief narrative explaining how the project meets the creditcriteria.As ‘Built’ Drawings of exhaust system for a typical entire floor.



Provide the following documentation:Brief narrative explaining how the project meets the creditcriteria.As ‘Built’ Drawings of exhaust system for a typical entire floorshowing any changes since Design Rating-if no changes, previous report and drawings can beresubmitted.



Not Applicable


ANSI/ASHRAE 62.2:2007 Ventilation and Acceptable Indoor AirQualitywww.ashrae.org

See Design Guide



LB-31: Indoor CO2 Management Credit PointsAvailable: 1

Intent To encourage the provision of air quality monitoring and managementsystems in occupied areas.

Credit Requirements Demonstrate the following:


Install permanent carbon dioxide (CO2) monitoring and controlsystems to ensure the adequate provision of outside air at alltimes. A minimum of one CO2 sensor at all return points mustbe provided.

Provide 100% outside air with no recirculated component atall times based around enthalpy recovery equipment.

Mixed-mode Ventilation

Compliance with the requirements above for mechanical ventilationand the provision of a CO2 alert system enabling occupants to directlyadjust ventilation rates when the mechanical ventilation system is notin use.In all instances comply with WHO Guidelines 2000 Air QualityGuidelines for Europe 2nd Edition, see ANSI/ASHRAE 62.2:2007Appendix B, Table B-1.





POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Provide air quality monitoring and control systems or

100% outside air

Design Rating1 Provide air quality monitoring and control systems or

100% outside air

Living Rating1 Provide air quality monitoring and control systems or

100% outside air


Rating



Mechanical Ventilation:Where CO2 monitoring systems are installed

Brief narrative describing how the project proposes to meetthe credit criteriaExtracts from specifications indicating requirements for thelocations of all CO2 monitors, setpoints and control sequences(as relevant) OR outside air requirements for ventilationsystems.Description and drawings of any proposed enthalpy recoveryequipment

Mixed-mode Ventilation:Documentation as above for mechanically ventilatedbuildings.Specifications indicating the requirements for the alert system.



Mechanical Ventilation:Brief narrative describing how the project meets the creditcriteriaExtracts from As-built drawings showing the locations of allCO2 monitors OR Commissioning report showing outside airrequirements for ventilation systems have been met.Description and as-built drawings of any enthalpy recoveryequipment where relevant.Commissioning report showing appropriate calibration,setpoints and control sequences (as relevant ) of C02 sensorswhere installed have been implemented

Mixed-mode Ventilation:Where CO2 monitoring systems are installed

Documentation as above for mechanically ventilatedbuildings.Commissioning report showing appropriate calibration, of C02sensors and testing of the alert system have beenimplemented.



Mechanical Ventilation:Report by showing ongoing successful operation includingcalibration, setpoints and control sequences (as relevant ) ofC02 sensors have been implemented.

ORExtract from LB-40 Commissioning report verifying theongoing successful operation of C02 sensors and controlsequences where installed.OR confirmation that outside air requirements for ventilationsystems are effective as per Design Rating.


ANDIf the systems or controls do not continue to operate asintended, rectification work undertaken to ensure theoperation is restored to approved Design Rating functionalitylevels.

Mixed-mode Ventilation:Where CO2 monitoring systems are installed

Documentation as above for mechanically ventilatedbuildings.Report showing ongoing successful operation of C02 sensorsand testing of the alert system has been implemented.


Living Rating stage report may be provided by appropriately qualifiedmechanical consultant, including a company involved in the designteam, provided it is not undertaken by an individual included in thedesign team.


ANSI/ASHRAE 62.2:2007 Ventilation and Acceptable Indoor AirQualitywww.ashrae.orgWHO Guidelines 2000 Air Quality Guidelines for Europe 2nd Edition.See Design Guide



LB-32: Car Park Air Quality Management Credit PointsAvailable: 1

Intent To facilitate the provision of adequate air quality within enclosed carparks.

Credit Requirements Demonstrate that the ventilation design meets or exceeds requirementsfor CO and NO2 concentrations in car parks, as follows:

Air PollutantsMaximum Concentration Micrograms

Averaging time Parts / Million (ppm)

(a) Carbonmonoxide

(CO)15 minutes 90

(b) Nitrogendioxide (NO2)

15 minutes 0.1

In all instances comply with WHO Guidelines 2000 Air QualityGuidelines for Europe 2nd Edition, see ANSI/ASHRAE 62.2:2007Appendix B, Table B-1.

An air quality alert system should be installed and connected to theBMS..

Where the project does not contain any enclosed car parks (75%enclosure), it is not eligible for this credit.





POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Ensure car park ventilation design meets credit requirements

Design Rating1 Ensure car park ventilation design meets credit requirements

Living Rating1 Ensure car park ventilation design meets credit requirements


Rating


Brief narrative describing how the project intends to meet thecredit criteria


Drawings or extracts from specifications indicating the proposedlocation of air quality sensors and air quality alert system.BMS point schedules.

The system presented in this credit must be consistent with the systemincluded in the energy model (e.g. variable speed drive fans).



Update brief narrative describing how the project meets thecredit criteriaDescription and as-built drawings of all air quality sensorsCommissioning report showing appropriate calibration,setpoints and control sequences (as relevant ) of all air qualitysensors and alert system has been implemented



Report by showing ongoing successful operation includingcalibration, setpoints and control sequences (as relevant ) of airquality sensors and alert system has been implemented.

ORExtract from LB-40 Commissioning report verifying the ongoingsuccessful operation of air quality sensors (where installed),control sequences and alert system.

ANDIf the systems, controls or alert system do not continue tooperate as intended, rectification work undertaken to ensure theoperation is restored to approved Design Rating functionalitylevels.


75% enclosure is defined as a carpark with external walls or otherbuilding uses to more than 75% of total external perimeter wall area ofthe carpark area.


ANSI/ASHRAE 62.2:2007 Ventilation and Acceptable Indoor Air Qualitywww.ashrae.orgWHO Guidelines 2000 Air Quality Guidelines for Europe 2nd Edition.

See Design Guide



LB-33: Prevention Credit PointsAvailable: 1

Intent To eliminate the risk of in water based building systems.

Credit Requirements Demonstrate that no water-based cooling tower systems are used forbuilding cooling

AND

A proper protocol for the treatment of Legionella in water-basedsystems e.g., in accordance with ASHRAE Guideline 12-2000‘Minimising the Risk of Legionella Associated with Building WaterSystems’ or other Referenced Standard thereby eliminating thepotential for contamination.

A proper protocol for the treatment of Legionella in water-basedsystems e.g., in accordance with ASHRAE Guideline 12-2000‘Minimising the Risk of Legionella Associated with Building WaterSystems’ or other Referenced Standard.





POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Do not use water-based cooling and/or or use protocol for

Legionella prevention

Design Rating1 Do not use water-based cooling and/or use protocol for


Living Rating1 Do not use water-based cooling and/or use protocol for



Rating


Where there is no water-based cooling

Drawings of the air conditioning system showing there are nowater-based cooling tower systems.

AND


A copy of the required protocol for the treatment of Legionellain the project’s water-based systems.

OR

Where there is water-based coolingA copy of the required protocol for the treatment of Legionellain the project’s water-based systems.



Where there is no water-based cooling

Summary report confirming the air conditioning system comprisesno water-based cooling tower systems.AND

A copy of the required protocol for the treatment of Legionellain the project’s water-based systems.

OR

Where there is water-based coolingA copy of the Operations and Maintenance Manual showingthe adopted protocol and process for treatment of Legionellain project water-based systems are compliant with nominatedReference Standards.



A copy of the Operations and Maintenance Manual showing theadopted protocol and process for treatment of Legionella in theproject water-based systems remain compliant with nominatedReference Standards.


Water based systems include:Cooling Towers, Air washers and evaporative condensersHot and Cold Water SystemsOther systems likely to be over 20oC and with potential togenerate aerosols during any operational or maintenanceprocedure e.g. enthalpy and heat exchangers.


ASHRAE Guideline 12- 2000 Minimising the Risk of Legionellaassociated with Building Water Systems

‘Legionaire’s Disease- The Control of Legionella Bacteria in WaterSystems’, Approved Code of Practice 3rd Edition 2000, UK Health andSafety Executive,.

See Design Guide for additional acceptable Reference Standards.


LB-34: Indoor Noise Pollution Credit PointsAvailable: 1

Intent Improve the noise isolation of normally occupied premises/rooms toreduce impact of unwanted noise.

Credit Requirements OfficesDemonstrate that internal ambient noise levels do not exceed 40 dB(A)for 95% of the occupied area.

Retail

Demonstrate that internal ambient noise levels do not exceed 50 dB(A)for 95% of the occupied area, excluding restaurant areas, and do notexceed 55 dB(A) for restaurant areas.

ResidentialDemonstrate that internal ambient noise levels do not exceed 30-35dBA for bedrooms and do not exceed 50dBa for other occupied areas.

All calculations, measurements and acoustic reports must be made bya qualified acoustics engineer.





POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Office: do not exceed 40 dB(A) for 95% of occupied area

Retail: do not exceed 50 dB(A) for 95% of occupied areaand 55 dB(A) for restaurantsResidential: do not exceed 30 dBA for bedrooms and 50dB(A) for other areas

Design Rating1 Office: do not exceed 40 dB(A) for 95% of occupied area

Retail: do not exceed 50 dB(A) for 95% of occupied areaand 55 dB(A) for restaurantsResidential: do not exceed 30 dB(A) for bedrooms and 50dB(A) for other areas

Living Rating1 Office: do not exceed 40 dB(A) for 95% of occupied area

Retail: do not exceed 50 dB(A) for 95% of occupied areaand 55 dB(A) for restaurantsResidential: do not exceed 30 dB(A) for bedrooms and 50dB(A) for other areas



Rating


A noise design report with the following details:

Short report describing how the project meets the CreditRequirements, in relation to all relevant internal and externalnoise sources, noise control features of the design and anyunderlying assumptions.Results of calculations or supporting tests demonstratingcompliance with the requirements (expressed in parametersthat are consistent with the test and/or calculation methods).Plans, elevations and drawings representing typical floorsmarked up to clearly indicate noise control features.CV of the acoustic engineer.



A noise field test report with the following details:

The required noise levels have been met in all relevantinternal areasResults of field tests or calculations demonstrating compliancewith the requirements (expressed in parameters that areconsistent with the test and/or calculation methods).CV of the acoustic engineer.



An updated noise field test report with the following details:

The required noise levels have been met in all relevantinternal areasIf the noise levels do not meet the Credit Requirements, detailsof the, rectification work undertaken to ensure the operation isrestored to levels consistent with the Credit Requirements.CV of the acoustic engineer.


For the purposes of the calculations or measurements, all operablewindows should be considered open.

Only noise from building services and external noise sources shouldbe included, not noise from occupants or tenant equipment andappliances.

Measurements and calculations should represent the four noisiest areasof the building, typically near façades on busy streets.


See Design Guide


LB-35: Outdoor Noise Pollution Credit PointsAvailable: 1

Intent To minimise noise pollution associated with the building that mayaffect neighbouring buildings, amenities or wildlife.

Credit Requirements Demonstrate that the level of intruding noise at the facade of thenearest noise sensitive premises will be minimised to less than 55dB(A).





POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Ensure intruding noise does not exceed 55 dB(A)

Design Rating1 Ensure intruding noise does not exceed 55 dB(A)

Living Rating1 Ensure intruding noise does not exceed 55 dB(A)


Rating


A short report describing how the project meets the CreditRequirements including calculations demonstrating that the level ofintruding noise at the facade of the nearest noise sensitive premises isless than 55 dB(A).



A noise field test report confirming the project meets the CreditRequirements including measurements demonstrating that the level ofintruding noise at the facade of the nearest noise sensitive premises isless than 55 dB(A).



An updated noise field test report with the following details:


The required noise levels have been met in all relevantexternal areasIf the noise levels do not meet the Credit Requirements, detailsof the, rectification work undertaken to ensure the operation isrestored to levels consistent with the Credit Requirements.CV of the acoustic engineer.


Noise sensitive premises include but are not limited to the following:Residential dwelling unitsHotel accommodation unitsDwelling HousesHospitals and Healthcare facilities


http://www.epa.gov/history/topics/noise/01.htm

See Design Guide

http://www.epa.gov/history/topics/noise/01.htm


LB-37: Construction Indoor Air Quality Management


Intent To reward construction practices that promote optimum indoor airquality (IAQ) at building delivery.

Credit Requirements Demonstrate the development of a Construction IAQ ManagementPlan. At a minimum the plan must address the following:

Measures for meeting or exceeding SMACNA IAQ Guidelinesfor Occupied Buildings Under Construction, 1995 Ch 3Protection of all absorptive materials from moisture damageandInstallation MERV 8 filters in each return air grille duringconstruction and replacement immediately prior tooccupancy.


Credit Points are awarded at the Conditional Design and DesignRating Stages. Credit Points are the same for all Types.



POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Develop a Construction IAQ plan

Design Rating1 Implement a Construction IAQ plan


Rating


A copy of the Construction IAQ Management Plan.



Copy of the Construction IAQ Management PlanStatement from peer reviewer that the project's performancewas in reasonable compliance with the Construction IAQManagement PlanCV of the peer reviewer



There is no submission required at this stage.


Not applicable.


SMACNA IAQ Guidelines for Occupied Buildings UnderConstructionSee Design Guide

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PW-r1: Minimum Potable WaterConservation

Requirement

Intent To ensure the project is meeting minimum performance requirementsfor total water use reduction.

Credit Requirements Demonstrate the project meets the minimum water use requirementsby one of the following:


Use fittings and/or flow management systems thatdeliver or use no more than flow or delivery rates shown inAppendix 1 Appliances, Equipment and Facilities andAppendix 2 for Fittings.

Eliminate potable water for irrigation purposes andprovide Reclaimed Water to surface drip irrigation at amaximum rate of approximately 875 mm/yr, (0.875litres/yr).

All swimming pools utilise a pool blanketwhether indoors or outdoors.


Reduce potable water consumption for overall by 30% fromcurrent Abu Dhabi consumption levels.

o Eliminate potable water use for irrigation purposesand

o Use reclaimed water only where available from alicenced source for irrigation purposes.





Rating



Summary listing all specified water-using equipment andfacilities

Schedule of fixtures and fittings

Hydraulic drawings,


Performance RequirementSummary Report showing Credit Submission for PW-r3:Water Model and percentage calculations based on requiredpercentages for this credit.


Schedule of fixtures and fittings

Hydraulic drawings,

BMS point schedules where BMS installed.





As-built hydraulic drawings,Data sheets for all installed fixtures and fittings.

Performance RequirementSummary Report showing Credit Submission for PW-r3:Water Model and percentage calculations based on requiredpercentages for this credit.


As-built hydraulic drawings,Data sheets for all specified fixtures and fittings.

BMS point schedules where BMS installed.


Provide the following documentation:Audit report comparing utilities billing against actualperformance for all primary meters. Where consumption issourced from sub-meters actual consumption is to beinterpolated from sub meter readings. Data to separate:

o Base Buildingo Tenanto Exterior use ando All major individual water uses as per PW-r3.

Where BMS installed:o BMS point scheduleso BMS reports of any leakage alerts.

AND

If the water consumption of the building is not operating asintended, rectification work undertaken to ensure theoperation is restored to Design Rating consumption levels.



Living Rating stage audit report may be provided by appropriatelyqualified mechanical consultant, including a company involved in thedesign team, provided it is not undertaken by an individual includedin the design team.

Prescriptive RequirementSee Appendix 1 and 2 for benchmark data and assumptions to use inthe model.

Should the applicant believe different assumptions are appropriate, areport showing results based on assumptions in Appendix 1 and 2should be submitted as well and an alternative scenario based on theproposed modified assumptions and the rationale for the changesincluding the Technical Data Sheets and/or actual surveyed orstatistical data supporting the rationale of the modification.Use of Reclaimed Water should be supported by the details of theproposed Licensed provider.

Where reclaimed water is not available potable water may be used inconjunction with high efficiency sub-soil drip irrigation.

Performance RequirementSee Appendix 1 and 2 for benchmark data and assumptions tocompare the proposed fittings, equipment and facilities to be used inthe project with.If choosing fittings, equipment and facilities that are higher than theassumptions shown in Appendix 1 and 2, the applicant will need toensure adequate offsets are created using different initiatives toproduce the required minimum efficiencies required.The report to be provided must show all assumptions and therationale for any changes including Technical Data Sheets and/or theactual surveyed or statistical data supporting the rationale of themodification.Use of Reclaimed Water should be supported by the details of theproposed Licensed provider.

Where reclaimed water is not available potable water may be used inconjunction with high efficiency sub-soil drip irrigation.


Appendix 1 and Appendix 2PW-r3: Water ModelPW-1: Potable Water Conservation: ImprovementPW-2: Net Positive WaterPW-3: Reduced Carbon Impact of WaterAbu Dhabi Regulations and Supervision Bureau – WastewaterResiduals Reuse Regulation – Draft March 2009, www.rsb.gov.aeEnvironment Agency Abu Dhabi- Plumbing Code (Draft – 2009)

Pearls Design System – PW-r1 Water Calculator SpreadsheeSee Design Guidet

http://www.rsb.gov.ae


PW-r2: Exterior Water Metering Requirement

Intent To prevent water leaks and waste from building water systems and toenable effective management of outdoor water uses.

Credit Requirements Demonstrate that all irrigation and exterior water uses are separatelymetered and, where available, connected to the Building ManagementSystem (BMS).

Exterior uses include, but are not limited to: all external hosebibs, irrigation systems, swimming pools and water features.Irrigation main lines and laterals must be colour-coded/Reclaimed Water labelled in accordance with the AbuDhabi Plumbing Code and connected to Abu DhabiReclaimed Water mains where available. Where ReclaimedWater mains are not currently available, the project mustprovide quick connect valves for future connection to useReclaimed Water.

The system must also raise an alarm whenever any unexplained orabnormal water consumption is detected, including but not limited to:

Daily consumption exceeding 20% more than the averagedaily consumption (seasonally adjusted).

Increases in cooling tower make-up water when the system isnot operating.

Lack of a ‘nil use’ 1 minute (or more) period in any 24-hourperiod.





Rating


Drawings or specifications clearly indicating the locations ofmeters and quick connect valves.

Extracts from specifications requiring colour-coded/ReclaimedWater labelled irrigation main lines and laterals adequate toserve permitted external uses

BMS point schedules.



As-built Drawings clearly indicating the locations of metersand quick connect valves.

Inspection report confirming installation of colour-coded/Reclaimed Water labelled irrigation main lines andlaterals adequate to serve permitted external uses.

BMS point schedules.

Credit Submission: Provide the following documentation:


Living RatingReports of any instances where meters have been shown to befaulty or the system has raises an alarm relating to unexplainedor abnormal water consumption detected in accordance withthe Credit Requirements.If meter/s have been shown to be faulty or the alarm has beenraised, rectification work undertaken to ensure the operation isrestored to approved Design Rating functionality levels.


Not applicable


Environment Agency Abu Dhabi- Plumbing Code (Draft – 2009)


PW-r3: Water Model Requirement

Intent To enable the project team to make informed decisions about theoptions, implications and benefits of various water supply andconservation strategies.

Note to Proponent This requirement establishes the foundation for all PW Credit Points, whilealso helping to fulfill the Water Strategy requirements of the UPCDevelopment Review Process as defined in Forms C, D and E.

Credit Requirements Demonstrate using the Pearls New Building Water Calculator thedevelopment’s predicted water consumption for all uses, includingpotable water, rainwater and reclaimed water, for both indoor andoutdoor uses.The analysis must use the Calculator to compare the proposedbuilding’s predicted performance to a Calculator Benchmark Building’sperformance showing the amount of water consumption savedcompared to the Benchmark building.

At a minimum, the model must account for the following:

(i) Fixtures and FittingsVolume of water used by the following fixtures and fittings (whereinstalled):

Kitchen tapsBathroom tapsToiletsUrinalsBidetsShowersPrayer wash facilities.

(ii) AppliancesVolume of water used by the following appliances (where installed):

Dishwashers

Clothes washing machines

(iii) Pools and Spas

Volume of water lost by all pools, spas and water features (whereinstalled).

(iv) Stormwater/Rainwater Capture

The volume of predicted stormwater/rainwater that will be capturedfrom the roof or the building site, if any.

(v) Reclaimed Water

The volume of water predicted to be captured and treated fromplumbing systems from reclaimed water, if any. This includes allmunicipally provided Reclaimed Water and any treated greywater andblackwater, where permitted. Water from cooling towers, condensatecapture and fire system testing is calculated separately (see below). A







Provide a completed Water Calculator Spreadsheet and Summaryreport explaining the site's water systems design and use includingbut not limited to the following:

Brief narrative describing all onsite water conservationstrategies and how the water model was used to makedecisions regarding the project design.

Complete calculations for each item required in the watermodel, showing total water use and savings for each item.See Calculations and Methodology section below for moredetails.

All documentation required for each item in the watermodel, as noted below.

description of designated uses and levels of treatment must beincluded.(vi) Condensate and Bleed-off Capture

The amount of water predicted to be reclaimed and stored or treatedfor higher reuse from cooling coil condensate and cooling towerbleed-off, where installed.

(vii) Fire System Test Water Collection and Reuse

The volume of water predicted to be captured from fire safety tests orsaved from testing mechanisms that do not expel water. A descriptionof the storage facilities (including sizes) and/or testing mechanismsmust be included.

(viii) Vehicle and Bin Wash

The volume of water predicted to be used for any dedicated bin orvehicle wash areas, if any.

(ix) Landscaping

The amount of water predicted for irrigation. Where there is nolandscaping requiring irrigation, this is excluded from the calculation.Groundwater is a limited resource and should not be used. Any use ofgroundwater cannot be deducted from a project’s potable water userequirements and makes the project ineligible for any points underCredit PW-1.

(x) Cooling Towers

The amount of water used for cooling towers (heat rejection), whereinstalled.

(xi) District Cooling Water

The amount of water used for District Cooling (heat rejection), whereconnected- apportioned by average cooling load and conditionedarea.


The report must be organised by items in the Water Calculator, withdocumentation for each item including specifications of fittings,equipment and schedule of consumption clearly tabbed andmatching data in the water calculator.

(i) Fixtures and Fittings

Extracts from specifications detailing all fittings andfixtures showing fittings and/or flow managementsystems are specified to deliver or use no more thanflow or delivery rates shown in Appendix 1 Appliances,Equipment and Facilities and Appendix 2 for Fittings.

(ii) Appliances

Extracts from specifications detailing all appliancesshowing compliance with Appendix 1 Appliances,Equipment and Facilities.

(iii) Pools and Spas

Extracts from specifications for all water use parametersfor all pools and spas, including volume, filtrationsystem and cover (if present).Plans showing location of the pool/spa with details ofany cover/enclosure.

(iv) Stormwater/Rainwater Capture

Short narrative describing all rooftop rainwater andsite-wide stormwater capture features and calculationsdemonstrating the predicted quantities for rainwaterand stormwater to be captured and reused (seeCalculation and Methodology section).Relevant plans and specifications extracts in support ofthe calculations undertaken.

(v) Reclaimed Water

Short narrative describing the uses of reclaimed wateron site.Where using Reclaimed Water from an offsite facility,provide contract extracts or a Memorandum ofUnderstanding (MOU) describing conditions of accessto the Reclaimed Water and parameters aroundvolumes of water to be provided, if any.Plans and specification extracts showing details of thecapacity of the treatment system, level of treatmentprovided and connections to points of reuse.

For projects using reclaimed water (except condensate reuse):

Written approval in principle from Abu DhabiRegulations and Standards Bureau (RSB).Full water quality report based on RSB WastewaterResiduals Reuse Regulations (Draft) – March 2009(WWRRR Draft: 2009).Drawings of fail-safe mechanism to the sewer main.Copy of contract for ongoing monitoring andmaintenance of the treatment system.


(vi) Condensate and Bleed-off Capture

Brief narrative describing the mechanisms by whichcollected condensate and bleed-off will be reused andthe relevant water quality control system to deliverwater of suitable quality for intended use

Specification or schedule extracts listing theparameters of the HVAC and heat rejection systems.Drawings of the collection system for capturing andtransporting condensate generated from coolingsystems and bleed off from cooling towers.Calculations of the annual quantities of condensateand bleed-off production, based on the systemparameters provided above.

(vii) Fire System Test Water Collection and Reuse

Brief narrative of the storage facilities and/or testingmechanism, including calculations used to determinethe size of storage facilities, if appropriate.Drawings and specification extracts in support of thecalculations provided above.

(viii) Vehicle and Bin Wash

Brief narrative describing the location of vehicle andbin wash facilities, connections to recycled watersystem (if appropriate) and calculations for thepredicted volume of water to be used.Drawing(s) showing the connections to the recycledwater/Reclaimed Water system, if appropriate.

(ix) Landscaping

Site landscaping plan, including plant types and areas.Specification extracts and drawings detailing theirrigation system used with supporting supplier datasheets.Calculations showing the amount of water to be usedfor landscape irrigation purposes.Drawing(s) showing the connections to the recycledwater /Reclaimed Water system if appropriate

(x) Cooling Towers

Specification extracts and manufacturer data sheets.Calculation of annual water usage.Details showing number of concentration cycles andwater treatment requirements and schedule.



An updated Water Calculator and report on the site's water use ‘As-Built ‘including but not limited to the following:


Brief narrative describing all onsite water conservationstrategies and how the Water Calculator was used to makedecisions regarding the project design to end ofconstruction.

Complete updated calculations for each item required in theWater Calculator, showing total water use and savings foreach major water use. See Calculations and Methodologysection below for more details.

All documentation required for each item in the watermodel, as noted below.

The updated report must include the Water Calculator and beorganised by item as per the Calculator, with documentation foreach item including technical data sheets of fittings, equipment andfacilities, all clearly tabbed.


Living Rating Submission utilises Design Rating Submission.


To calculate the project’s predicted water use savings over a BaseCase building:

1. Determine the total amount of water used by the Base Casebuilding for all uses .[Figure#1]

2. Then determine the total amount of water used by theproject for all uses (two options available, A&B, to testmultiple scenarios).

3. Determine the amount of non-potable water that is used(and subtract from 2 above to determine project potablewater use).

The difference between 1 and 3 is the total potable water savings forthe project.

The above steps are automatically calculated by the WaterCalculator. The calculator uses a number of defaults for determiningthe Base Case, some of which can then be altered to determineproject water savings. A number of default factors remain the sameas they related to usage patterns which are not changed by buildinginfrastructure alone.

Base Case Building:

To calculate the Base Case water consumption the calculatorrequests the following information to be entered:

1. Project areas. For Office areas this is Net Lettable Area(NLA) in m2. For Retail and Residential areas this is GrossFloor Area (GFA) in m2. In addition the number ofapartments, and their size, is also required to be entered forresidential facilities.


In addition the total area of roof (as well as type, chosenfrom a drop-down menu), hardstand and landscaping area isrequired. The roof and hardstand areas are used tocalculated the potential for rainwater/stormwater collection

(combining run-off coefficient and annual rainfall). Thelandscape area is used to calculate landscape water usage,based on a default usage.

2. Pools & Water Features. The total volume (kl) of pools andwater features is required, as well as determination whetherthey are covered/uncovered (selected from a drop downmenu). The calculator will determine annual water lossbased on this data.

3. Heat Rejection Water. Heat rejection water covers the useof cooling towers/district cooling for the project. The type ofsystem is chosen from a drop down menu and a calculationundertaken based on building type, area and default waterusage numbers.

Project Design Case:

The WATER CALCULATION worksheet provides for the calculationof two project scenarios – Option A and Option B. The projectcalculations are undertaken as follows:

Fixtures. Water use from fixtures is dictated by individualfixture efficiencies that are listed on the FIXTURESworksheet.

Appliances. Water efficiency of appliances provided by theproject can also be reflected in the WATER CALCULATIONworksheet. Appliances covered include dishwashers andwashing machines.

Pools/Spas and Water Features. Reduction in waterconsumption can be achieved through reducing the LossFactor. Projects will be required to provide calculations andtechnical details on how this reduced loss factor can beachieved.

Fire System Test Water. Water usage from tests and theirfrequency can be changed by the project. Evidence andcalculations will need to be provided to show how anyproposed reductions are achieved.

Vehicle Bin Washing. Total numbers of bins and cars,washing frequency and water used per wash can all bealtered in the calculator. Calculations and evidence will berequired by the project to justify changes.


Landscaping. Projects are able to classify landscaping areasas either high use, medium use, medium-low use, low useor no irrigation to reflect the landscaping proposed for theproject.

Alternative Water Sources. Calculate the total amount ofcondensate/rainwater/onsite treated wastewater/groundwater/fire system water/municipal reclaimedwater used in the project. Onsite treated waste waterincludes both greywater and blackwater. Greywaterincludes all water from bathroom sinks, showers, laundries,cooling tower bleed off, fire system test water. Blackwater isall water from toilets, urinals, dishwashers and kitchensinks.

Drawings of the plumbing systems must be includedshowing where relevant the separate lines for grey and/orblackwater and/or reclaimed water and their separate storageand treatment areas.

Clearly indicate where the treated water will be reusedonsite and provide a schedule showing the proposed waterquality level to be delivered in accordance with the RSBWWRRR Draft 2009.

Determining the project’s performance:

The SUMMARY sheet in the Water Calculator automaticallygenerates summary results for the project, including the % potablewater reduction.

Emergency Override:

Projects treating blackwater and/or greywater and/or usingReclaimed Water and condensate must have an emergencyoverride system to divert flow to the municipal sewer mainand be licensed by the RSB.

All water supply systems that use non-potable water, musthave an emergency mains potable water backup withbackflow prevention devices.


Pearls Design System – NB-PW-r3 Water Calculator

PW-r1 Potable Water Conservation: MinimumAppendix 1 and Appendix 2PW-1: Water Conservation ImprovementPW-2: Water GenerationPW-3: Reduced Carbon Intensity of WaterAbu Dhabi Regulations and Supervision Bureau – WastewaterResiduals Reuse Regulation – Draft March 2009, www.rsb.gov.aeEnvironment Agency Abu Dhabi- Plumbing Code (Draft – 2009)Pearls Design System – PW-r1 Water Calculator Spreadsheet



PW-1: Improved Potable WaterConservation


Intent To reward the reduction of potable water consumption for interior andexterior uses through efficient building design, building systems,landscaping and substitution with reclaimed water.

Credit Requirements Demonstrate through the water model created for PW-r3 that thebuilding has achieved the following reduction in potable water useover the Benchmark Building calculations from the Pearls NB WaterCalculator:7 CREDIT POINTS = 35% reduction8 CREDIT POINTS = 40% reduction9 CREDIT POINTS = 45% reduction10 CREDIT POINTS = 50% reduction11 CREDIT POINTS = 55% reduction12 CREDIT POINTS = 60% reduction13 CREDIT POINTS = 65% reduction14 CREDIT POINTS = 70% reduction15 CREDIT POINTS = 75% reduction16 CREDIT POINTS = 80% reduction17 CREDIT POINTS = 85% reduction18 CREDIT POINTS = 90% reduction19 CREDIT POINTS = 95% reduction20 CREDIT POINTS = 100% reduction

2 ADDITIONAL POINTS: Are available at each tier above where thelandscaped area constitutes 10% of the site or more (at a minimumsize of 1000 m2),ANDat least 20% of the overall potable water reduction is attributable to thereduction in landscape uses.

Groundwater is a limited resource and should not be used. Any use ofgroundwater cannot be deducted from a project’s potable water userequirements and makes the project ineligible for any points underCredit PW-1.



There are fourteen levels of achievement. Two Additional CreditPoints are available.

Points will be awarded as follows:


POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating7 - 20 Achieve a 35% - 100% reduction in potable water use over

a baseline building.2 - Demonstrate at least 20% of the

potable water reduction is from a reduction in landscapeuses

Design Rating7 - 20 Achieve a 35% - 100% reduction in potable water use over



Living Rating7 - 20 Achieve a 35% - 100% reduction in potable water use over




Rating


Summary results of the Water Calculator from PW-r3, clearlydemonstrating through reporting from the Calculator and narrative, thevolume of potable water (in percentage) to be saved by this projectover the Benchmark Building.

All Credit Submission requirements from PW-r3 must be complete inorder to qualify for this credit.

Where the additional points for water savings through landscaping arebeing claimed, provide the following:

Reporting from the Water Calculator demonstrating that thewater consumption minimised through efficient landscape andirrigation design accounts for a minimum of 20% of the overallwater reduction claimed by the project.

Site plan marked-up to clearly indicate the size of thelandscaped area and its proportion of the total project site.

Reporting of the results of improved water conservation in netpotable water consumption savings/day over the BenchmarkBuilding.



Updated summary results of the Water Calculator from PW-r3, clearlydemonstrating through reporting from the Calculator and narrative, thevolume of potable water (in percentage) to be saved by the constructedproject over the Benchmark Building.



Reporting from the Water Calculator demonstrating that thewater consumption minimised through efficient landscape andirrigation design accounts for a minimum of 20% of the overallwater reduction claimed by the project.

As Built Site plan marked-up to clearly indicate the size of thelandscaped area and its proportion of the total project site.

Reporting of the results of improved water conservation in netpotable water consumption savings/day over the BenchmarkBuilding.


Provide the following documentation:Audit report comparing simulated building performance fromWater Calculator against utilities billing actual performancefor all primary meters Where consumption is sourced fromsub-meters actual consumption is to be interpolated from submeter readings. Data to separate:



AND

If the water consumption of the building is not operating asintended, rectification work undertaken to ensure theoperation is restored to approved Design Rating consumptionlevels.


Reporting interpolated from Utilities billing demonstrating thatthe water consumption minimised through efficient landscapeand irrigation design accounts for a minimum of 20% of theoverall water reduction claimed by the project.

As Built Site plan marked-up to clearly indicate the size of thelandscaped area and its proportion of the total project site.

Reporting of the results of improved water conservation in netpotable water consumption savings/day over the BenchmarkBuilding from Water Calculator results in Design Stage.

Calculations andMethodology:

As per PW-r1 Water Model


Related Resourcesand References:

Pearls Design System – NB-PW-r3 Water Calculator

Code requirement: Minimised Water UseAppendix 1 and Appendix 2PW-r3: Water ModelPW-2: Net Positive WaterPW-3: Reduced Carbon Impact of WaterAbu Dhabi Regulations and Supervision Bureau – WastewaterResiduals Reuse Regulation – Draft March 2009, www.rsb.gov.aeEnvironment Agency Abu Dhabi- Plumbing Code (Draft – 2009)



PW-2: Net Positive Water Credit PointsAvailable: 10

Intent To reward the onsite treatment of non-potable water, including Reclaimed Waterand condensate water and by usinginnovative condensation technologies tocreate a net positive production of wateronsite.

Credit Requirements Demonstrate the following reduction in water use over a baselinebuilding, based on the water model created for PW-r3, as follows:

2 CREDIT POINTS = 105%4 CREDIT POINTS = 110%6 CREDIT POINTS = 115%8 CREDIT POINTS = 120%10 CREDIT POINTS = 125%



There are five levels of achievement.


POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating2 - 10 Achieve a 105% - 125% reduction in potable water use

over a baseline building.

Design Rating2 - 10 Achieve a 105% - 125% reduction in potable water use


Living Rating2 - 10 Achieve a 105% - 125% reduction in potable water use



Rating


Summary results of the Water Calculator from PW-r3, clearlydemonstrating through reporting from the Calculator and narrative, thevolume of potable water (in percentage) to be generated by this projectover the Benchmark Building.





Updated summary results of the Water Calculator from PW-r3, clearlydemonstrating through reporting from the Calculator and narrative, thevolume of potable water (in percentage) to be saved by the constructedproject over the Benchmark Building.


Provide the following documentation:Audit report comparing utilities billing against actualperformance for all primary meters. Where consumption issourced from sub-meters actual consumption is to beinterpolated from sub meter readings. Data to separate:



AND

If the water consumption of the building is not operating asintended, rectification work undertaken to ensure theoperation is restored to Design Rating consumption levels.


As per PW-r1 Water ModelReclaimed Water is considered for the purposes of this credit to be aninput, whereas if treated to a level suitable for purposed other thanirrigation, is considered to be generated water (output) .


PW-r1 Potable Water Conservation: MinimumAppendix 1 and Appendix 2PW-r3: Water ModelPW-1: Potable Water Conservation: ImprovementPW-3: Reduced Carbon Impact of WaterAbu Dhabi Regulations and Supervision Bureau – WastewaterResiduals Reuse Regulation – Draft March 2009, www.rsb.gov.aeEnvironment Agency Abu Dhabi- Plumbing Code (Draft – 2009)

Pearls Design System – NB -PW-r1 Water Calculator Excel Spreadsheet



PW-3: Reduced Carbon Impact of Water Credit PointsAvailable: 5

Intent To reward projects that minimise potable water use and select the mostgreenhouse-efficient water, wastewater and reclaimed water treatmentsystems, thereby reducing the energy use and greenhouse gasemissions associated with the production, treatment, storage andtransport of water.

Credit Requirements Demonstrate the reduced greenhouse impact of both potable and totalwater use of the project compared to the baseline building, as follows:

2 CREDIT POINTS = 10% reduction3 CREDIT POINTS = 20% reduction4 CREDIT POINTS = 30% reduction5 CREDIT POINTS = 40% reduction



There are four levels of achievement.


POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating2 Achieve a 10% reduction in the greenhouse gas impact of

water use3 Achieve a 20% reduction in the greenhouse gas impact of



water use

Design Rating2 Achieve a 10% reduction in the greenhouse gas impact of




water use

Living Rating2 Achieve a 10% reduction in the greenhouse gas impact of




water use



Rating


Results of the Water Calculator from PW-r3, clearly demonstratingthrough reporting from the Calculator and Calculations using EnergyFactors in Appendix 4, the reduction in carbon content of water (inpercentage) used by this project compared to the Benchmark Building.




Updated Calculations from the Water Calculator from PW-r3, clearlydemonstrating the reduction in carbon content of water (in percentage)achieved by the constructed project over the Benchmark Building.


Provide the following documentation:Audit report comparing utilities billing against actualperformance for all primary meters. Where consumption issourced from sub-meters actual consumption is to beinterpolated from sub meter readings prior to calculating the incarbon content of water and consequent percentage savings.Data to separate:


AND

If the carbon content of water in the building is not asintended, rectification work undertaken to ensure theoperation is restored to Design Rating consumption levels.


Attribute each water source with the appropriate greenhouse factorthen multiply by the total volume of each consumed flow as follows:

i) Potable water –from Appendix 4

ii) Reclaimed Water – from Appendix 4

iii) Onsite wastewater treatment (including water defined asgreywater) – to be provided by project

iv) Onsite condensate treatment – to be provided by project

v) Onsite Reclaimed Water upgrade treatment – to be providedby project.

vi) Add greenhouse impacts for items i)-v) together and deductthe total from a total calculated for the Baseline Building.Using a similar method. Divide the difference by the total fromthe Baseline Building and express as a % saving.


vii) Note: The Baseline Building greenhouse impact is to includethe energy factor for Abu Dhabi mains water and RW watersupply from Appendix 4.


Code requirement: Minimised Water UseAppendix 1, Appendix 2 and Appendix 4PW-r1: Water ModelPW-1: Reduced Potable Water ConsumptionPW-2: Water Generation


PW-4: Indoor Water Meters Credit PointsAvailable: 2

Intent To enable the ongoing monitoring and management of indoor wateruse.

Credit Requirements 1 CREDIT POINT = is awarded when it is demonstrated thatwater flow measuring devices are installed to record all major wateruses (exceeding 2% annual consumption), including but not limited to:Offices and Retail

Domestic hot waterCooling towersRainwater tank top-up and usage from tankWater featuresReused water systems.

ResidentialIndividual apartmentsShared pool/spa/sauna and laundry facilitiesDomestic hot waterCooling towersRainwater tank top-up and usage from tankWater featuresReused water systems.

ADDITIONAL CREDIT POINT = is awarded where the above pointis achieved, AND it is demonstrated that all water meters are linked tothe BMS to manage and monitor water use and major water leakswithin the water distribution systems (including potable water,wastewater – greywater/blackwater, Reclaimed Water andcondensate). This included all exterior and landscape meters installedper the Exterior Water Meters code requirement.

The system must also raise an alarm whenever any unexplained orabnormal water flow rate or overall consumption is detected, includingbut not limited to:

Daily rate of consumption exceeding 20% more than theaverage daily rate (seasonally adjusted).

Increases in cooling tower make-up water when the system isnot operating.

Lack of a ‘nil use’ one minute (or more) period in any 24-hourperiod.



There is one level of achievement. One Additional Credit Point isavailable.



POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Install water meters on all major water uses1 – link all meters to BMS

Design Rating1 Install water meters on all major water uses1 – link all meters to BMS

Living Rating1 Install water meters on all major water uses1 – link all meters to BMS


Rating


Brief narrative describing how the project meets the CreditRequirements, including a schedule showing the number ofmeters to be installed and the areas served by each meter andwhether it is to be connected to the BMS.

Drawings or specifications indicating the locations of waterflow measuring devices.

Where the additional point is being claimed:

BMS point schedule showing the water meter connections.

Description of the alarm system functionality.



Brief narrative describing how the project meets the CreditRequirements, including a schedule showing the number ofmeters to be installed and the areas served by each meter andwhether it is to be connected to the BMS.

As-built drawings indicating the locations of water flowmeasuring devices.


BMS point schedule showing the water meter connections.

Description of the alarm system functionality.



No submittal required for Living Rating.


Reports of any instances where meters have been shown to befaulty or the system has raises an alarm relating to unexplainedor abnormal water consumption detected in accordance withthe Credit Requirements.


If meter/s have been shown to be faulty or the alarm has beenraised, rectification work undertaken to ensure the operation isrestored to approved Design Rating functionality levels.


Annual consumption is to be sourced from the Water Calculator.


Code Requirement: External Water MetersLB-38: Sustainability Communication


PW-5: Water Use Reporting Credit PointsAvailable: 1

Intent To encourage building managers and designers to monitor, collect andreport detailed information on water consumption models and actualusage to a central database.

Credit Requirements 1 CREDIT POINT = Is awarded when a written commitmentfrom the building owner to supply the project’s predicted and actualwater consumption data to a central PDS database is demonstrated.



There is only one level of achievement.

POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 Owner commitment to report water consumption data

Design Rating1 Owner commitment to report water consumption data

Living Rating1 Owner commitment to report water consumption data


Rating


Owner to provide a copy of the written commitment,including specific time frames, to forward the water modelcreated for credit PW-r3 as well as all future water monitoringand building use patterns to the central PDS database on anongoing annual basis

Where the project is providing a commissioning report as partof credits LB-41 and LB-42, all summary, quarterly and finalcommissioning reports on the performance of all water-relatedbuilding services are considered part of the data that must besubmitted to the PDS database. All reported information isconfidential and any published data will be free of identifiers.



A copy of the Conditional Design stage Water Calculatorcreated for credit PW-r3 as well as an As Built WaterCalculator, report comparing and explaining any differencesbetween the two as well as commitment by any changedowner to continue to send the data to the central PDSdatabase on an ongoing annual basis


Where the project is providing a Final Tuning report as part ofcredits LB-41 and LB-42, all summary, quarterly and finalcommissioning reports on the performance of all water-relatedbuilding services are considered part of the data that must besubmitted to the PDS database. All reported information isconfidential and any published data will be free of identifiers.



Submission of the Living Stage audit report required underPW-r3 as well as commitment by any changed owner tocontinue to send the data to the central PDS database on anongoing annual basis

Where the project is providing a Living Stage commissioningreport as part of credits LB-41 and LB-42, all summary,quarterly and final commissioning reports on the performanceof all water-related building services are considered part of thedata that must be submitted to the PDS database. All reportedinformation is confidential and any published data will be freeof identifiers.


Provide a copy of the written commitment, including specific timeframes, to forward the water model created for credit PW-r3 as well asall future water monitoring and building use patterns to a centraldatabase on an ongoing annual basis

Where the project is providing a commissioning report as part ofcredits LB-41 and LB-42, all summary, quarterly and finalcommissioning reports on the performance of all water-relatedbuilding services are considered part of the data that must besubmitted to the PDS database. All reported information is confidentialand any published data will be free of identifiers.


Code requirement: External Water MetersLB-38: Sustainability CommunicationPW-4a: Water Management: Indoor Water Use


PW-6: Stormwater Credit PointsAvailable: 4

Intent To increase the awareness of the importance of stormwater flows andquality even in Abu Dhabi’s climate and improve actual stormwaterquality and reduce peak stormwater flows draining from the projectsite.

Credit Requirements Demonstrate that the project design achieves the followingperformance related to its stormwater run-off:

80% of total suspended solids (or < 50 mg/l effluentconcentration)50% reduction in Biochemical Oxygen Demand (BOD) valueafter five days BOD5 (or < 50 mg/l effluent concentration)Minimum 80% reduction in total heavy metalsMinimum 95% removal of litter (gross pollutants, >1mm)Minimum 90% removal of hydrocarbons.

2 CREDIT POINTS = achieving above stormwater quality

ADDITIONAL CREDIT POINTS: Where the above requirements aremet, an additional 2 credit points are available, as follows:

1 CREDIT POINTS = stormwater flows are at or below pre-development flow levels for a 2cm, 24-hour storm.

2 CREDIT POINTS = stormwater flows are 25% below pre-development flow levels for a 2 cm, 24-hour storm.

Calculations must be prepared by a suitably qualified civil engineer.



There is one level of achievement. Two Additional Credit Points areavailable.



POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating2 Meet the stormwater performance levels in the Credit

Requirements1 – stormwater flows at or below pre-

development flows for a 2cm, 24-hour storm2 - stormwater flows 25% below pre-

development flows for a 2cm, 24-hour storm

Design Rating2 Meet the stormwater performance levels in the Credit




Living Rating2 Meet the stormwater performance levels in the Credit





Rating

Provide the following documentation:Summary Report describing the stormwatermanagement/treatment features of the project.

Calculations that show total suspended solids, total nitrogen,total phosphorous, litter and hydrocarbons in stormwaterleaving the site or values from literature demonstrating theremoval efficiencies for the strategies employed.

Calculations that show peak and annual stormwater flows fromthe site pre- and post construction.Specifications and drawings) in support of the above report andcalculations.Where landscape-based treatment is used, provide calculationsshowing the required amount of bioretention area and site plansindicating the total area dedicated to bioretention andtreatment.


Provide the following documentation:Summary Report describing the stormwatermanagement/treatment features of the project.Calculations that show total suspended solids, total nitrogen,total phosphorous, litter and hydrocarbons in stormwaterleaving the site or values from literature demonstrating theremoval efficiencies for the strategies employed.


Calculations that show peak and annual stormwater flows fromthe site pre- and post construction.As-built drawings in support of the above report andcalculations.Manufacturer data sheets for all relevant components (e.g.filtration devices)Where landscape-based treatment is used, provide calculationsshowing the required amount of bioretention area and site plansindicating the total area dedicated to bioretention andtreatment.


Provide the following documentation:Summary Report describing the operation and success of thestormwater management/treatment features of the project.Field measurements that show total suspended solids, totalnitrogen, total phosphorous, litter and hydrocarbons instormwater leaving the site meet the credit requirements.

Where landscape-based treatment is used, provide Photographsof the bioretention area and site plans indicating the locationand direction of photographs of bioretention treatment area.

ANDIf the systems or controls do not continue to operate asintended, rectification work undertaken to ensure theoperation is restored to Design Rating functionality levels.


To be provided by the civil engineer.

Civil Engineer CV: One-page CV showing qualifications, professionalregistration and recent similar experience including their specific rolein the projects referenced.


Environment Agency Abu Dhabi, www.ead.gov.aeCSIRO Urban Stormwater Best Practice Environmental ManagementGuidelines (2006)

http://www.ead.gov.ae

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RE-r1: Minimum Energy Conservation Requirement

Intent To ensure all buildings meet minimum requirements to reduce energydemand from their operations.

Credit Requirements Demonstrate that the building meets the energy performancerequirements as follows:

Prescriptive RequirementMinimum building envelope specifications:

Roofs and skylight support structures:Minimum assembly heat transfer co-efficient (U value) of 0.2W/m2K.

Above-grade walls and opaque assemblies:

Minimum heat transfer co-efficient (U value) of 0.51 W/m2K.Skylights maximum — 5% of gross floor area. (does not applyto retail buildings).

Below-grade walls:

Below-grade walls to occupied spaces should provide for aminimum heat transfer co-efficient (U value) of 1.00 W/m2K.

Windows and skylights:

— Less than or equal to U value of 1.5 W/m2K — Maximum Solar Heat Gain Coefficient (SHGC )of 0.45

— Less than or equal to U value of 3.0 W/m2KThe average for the façade should be no more than 1.65 W/m2K.

— all combined glass and opaque assemblies tohave air tightness greater than 9 m3/hr/m2 façade at 100kPa.

For building shading requirements, see Pearls Requirement: CoolBuilding Strategies.

Minimum HVAC, hot water and equipment specifications to be inaccordance with ASHRAE90.1:2007 clauses 6, 7, 8 and 10 and all2008 and subsequent addenda.

Lighting power density to be 30% better than ASHRAE90.1:2007clause 9 and all 2008 and subsequent Addenda.


20% improvement over Budget Building performance demonstrated bythe energy simulation model as described in credit RE-r6 EnergyModel.






Rating


Prescriptive RequirementArchitectural drawings and specification extracts together witha summary report detailing performance properties of allbuilding elements mentioned above.Technical data sheets for all prescribed equipment andsystems including calculations for façade U-value and lightingpower density.Report summarising how the ASHRAE requirements have beenachieved.Extract of the façade specification detailing the air tightnessand demonstrating the requirement for façade testing oncompletion.

Performance RequirementSummary report detailing results of completed energy model showinghow much less final energy consumption is compared to the BudgetBuilding and including the consequent GHGs based on all fuel sourcesand primary energy consumption of each fuel used.

The report must summarise the parameters used in the model includingfaçade performance, occupant density, internal loads, operational andoccupancy schedules.



Prescriptive RequirementAs-built architectural drawings and specification extractstogether with a summary report detailing performanceproperties of all building elements mentioned above.

Technical data sheets for all prescribed equipment andsystems including calculations for façade U-value and lightingpower density.Report summarising how the ASHRAE requirements have beenachieved.Report on results for air tightness and façade testing oncompletion.

Performance RequirementSummary report detailing results of completed energy model showinghow much less final energy consumption is compared to the BudgetBuilding and including the consequent GHGs based on all fuel sourcesand primary energy consumption of each fuel used.The report must summarise the parameters used in the model includingfaçade performance, occupant density, internal loads, operational andoccupancy schedules.

The same report that was submitted for the Conditional Design Ratingmay be resubmitted as long as there have been no changes to thedesign.




Prescriptive RequirementUpdated As-built architectural drawings and specificationextracts together with a summary report detailing performanceproperties of all building elements mentioned above.Technical data sheets for any changed prescribed equipmentand systemsReport summarising how the ASHRAE requirements have beenachieved.

The same report that was submitted for the Design Rating may beresubmitted as long as there have been no changes to the building.

Performance RequirementAudit report comparing utilities billing against actualperformance for all primary meters. Where consumption issourced from sub-meters actual energy consumption is to beinterpolated from sub meter readings. Data to separate:

o Base Buildingo Tenanto Exterior use ando All major individual energy uses as per RE-r3.


AND

If the energy consumption of the building is not operating asintended, rectification work undertaken to ensure theoperation is restored to Design Rating consumption levels.


Prescriptive RequirementU-values of materials proposed can vary by up to 5%.

Air tightness performance data, based on 4 m slab-to-slab heights, ifslab heights vary, pro-rata calculations are to be submitted.

Where balconies are inset into building facades and are aboveoccupied space, they should be considered as roofs.

Performance RequirementPlease refer to RE-r6 Energy Model.

Living Rating stage audit report may be provided by appropriatelyqualified mechanical consultant, including a company involved in thedesign team, provided it is not undertaken by an individual included inthe design team.


www.ashrae.org ASHRAE 90.1: 2007 plus user manual and alladdenda and supplements



RE-r2: Energy Metering Requirement

Intent To encourage the provision of metering facilities that allow the energyperformance of the building to be recorded and monitored to allowfuture improvement and understanding of the use of energy inbuildings.

Credit Requirements Demonstrate all individual occupancies and floor plates as well as allmajor electrical uses over 100 kVa (e.g. HVAC equipment, processloads such as pools and large equipment) are sub-metered and linkedto the building management system.

No individual meter is to serve more than 200 kVA.





Rating

Provide the following documentation:Extracts from specifications or drawings clearly indicating theextent and locations of all metering.BMS point schedules.


Provide the following documentation:As-built drawings clearly indicating the extent and locationsof all metering.BMS point schedules.


No submittal required for Living Rating.


Not applicable


See Design Guide


Re-r3: Cool Building Strategies Requirement

Intent To reduce heat build-up in urban areas and lower building coolingrequirements.

Credit Requirements Demonstrate the project employs building design features that serve tominimise internal building temperatures:

Use materials with a minimum Solar Reflectance Index (SRI) of 29 andemittance of 0.8 for building roof, walls and any other surfaces withheat retention capability not shaded by external shading requirements.

Provide external shading to building façade (opaque and glazed)capable of providing the following shade levels between 21 April and21 October between the hours of 8.00am and 6.00pm, based on solarsweep throughout the day:

South – 90%East and West – 75%North –95%Other aspects – 80% for all faces.

Living (green) roofs can contribute to this percentage only if non-potable water is used for irrigation and soil is shaded by mulch and/orlandscape planting with projected shade cover of more than 75%.





Rating


Drawings of the façade and shading devices includingmaterials.Report including a detailed hour-by-hour summary and modelsnapshots of each elevation by hour and day for summer andwinter solstice and one equinox.Sunpath diagram – model setup to include surrounding solarobstructions including adjoining buildings, structures andapproved future developments.

Office and ResidentialBalconies generating projected shade can be included in the shadingcalculations.



As-built drawings of the façade and shading devices includingmaterials.


Report including photographs of key elevations at 9.00am,11.00am 1.00pm, 3.00pm and 5.00pm for available summerand winter solstice and equinox as possible given completionprogram of buildingReport also to include surrounding photographs of solarobstructions including adjoining buildings, structures andapproved future developments and compared to originalmodelled obstructions.

Office and ResidentialBalconies generating projected shade can be included in the shadingcalculations.


Provide the following documentation:Report including photographs of key elevations at 9.00am,11.00am 1.00pm, 3.00pm and 5.00pm for summer and wintersolstice and equinox.Report also to include surrounding photographs of solarobstructions including adjoining buildings, structures andapproved future developments and compared to originalmodelled obstructions. If there are no changes from DesignRating stage this aspect of the report can be resubmitted.


External Shading Percentage Calculation:

A façade is considered to be within one of the major aspectcategories shown if it falls within 15 degrees of one of thecardinal compass points (i.e. N, S, E or W).

Calculate the daily average shaded areas for 21 April and 21July and prepare a summary report based on the followingmethodology:

o Calculate the shade percentage by measuring the totalshaded area of each elevation at each whole hourbetween the times specified.

o Compare shaded and unshaded proportions of wallsand windows to conditioned spaces at each wholehour and convert to a percentage. Add thepercentages and divide by nine hour.

o The percentages are to be calculated based on8.00am to 6.00pm business hours.

o Calculate simple average of the two nominated daysshaded areas assessments. This figure must exceed theminimum requirements identified above.


See Design Guide


This page is left blank intentionally


RE-r4: Energy Efficient Appliances Requirement

Intent To minimise the energy consumed by common building appliances.

Credit Requirements Demonstrate that all developer installed appliances meet or exceed thetop 25% Energy Star or other recognised appliance rating systemperformance in their ratings category. Standard appliances to bedocumented include but are not limited to:

Office

DishwashersBoiling and chilled water dispensers units.

RetailCommercial dishwasher for each food service tenant.

ResidentialDishwashersClothes Washing machines, clothes dryers or washer/dryersRefrigerators and/or freezers.





Rating


Summary list of all appliances to be installed in the building,including quantity, manufacturer and model.

Manufacturer information regarding appliance energy use orproof of certification by Energy Star programme or equivalent.



Summary list of all appliances installed in the building,including quantity, manufacturer and model.

Manufacturer information regarding appliance energy use orproof of certification by Energy Star programme or equivalent.


There is no Living Rating submission.


Recognised appliance rating systems include but are not necessarilylimited to:

Energy Star (USA, EU, Australia, New Zealand)MEPS (Australia)Green Tick Singapore.


Appliances specified above relate only to those items installed withinthe building contract as follows:

Residential – to each apartment or tenancyOffice – to each 1000 m2 of occupied spaceRetail – to each tenancy identified as a food outlet.


www.energystar.govwww.energyrating.gov.auwww.clasponline.org

http://www.energystar.gov

http://www.energyrating.gov.au

http://www.clasponline.org


RE-r5: Ozone Impacts of Refrigerants and Fire Systems

Requirement

Intent To eliminate the impact of building operations on the ozone layer.

Credit Requirements Refrigerants

Demonstrate that all refrigerants to be installed throughout the buildinglife have a low ozone depleting potential (ODP). Where refrigerantshave an ODP greater than zero a refrigerant leak detection systemmust be installed.

Leak detection systems must contain refrigerants in a moderatelyairtight enclosure and be installed in high-risk parts of the plant. Theremust also be an automatic refrigerant pump down to a heat exchangeror dedicated storage tanks with isolation valves.

Refrigerants with an ODP of greater than 0.041 are not permitted evenwith leak detection systems.

Leak detection systems must be designed by qualified mechanicalengineers.

Fire suppression systemsDemonstrate that all gaseous fire suppression systems to be installed inthe building have a zero low ozone depleting potential (ODP).




Credit Submission Provide the following documentation:

Brief narrative describing how the project meets the CreditRequirements.Specification extracts for all proposed refrigerants and gaseousfire suppression systems including ODP impact.System specification for leak detection system where installedand consultant report demonstrating compliance with creditrequirements.Draft content for inclusion for building owner and occupantmanuals.CV of the engineer responsible for the design of the leakdetection system.



Brief narrative describing how the project meets the CreditRequirements.Manufacturer data sheets for all installed refrigerants andgaseous fire suppression systems including ODP impact.


As Built system specification for leak detection system whereinstalled and consultant report demonstrating compliance withcredit requirements.Final content for inclusion for building owner and occupantmanuals.CV of the engineer responsible for the design of the leakdetection system.



Manufacturer data sheets for any changes to installedrefrigerants and gaseous fire suppression systems includingODP impact.Extract from LB-40 Commissioning report verifying theindividual Leak Detection system continues to operate asintended.

ORReport demonstrating the ongoing successful operation of theLeak Detection system.

ANDIf the Leak Detection system does not operate as intended,rectification work undertaken to ensure the operation isrestored to approved Design Rating functionality levels.CV of the engineer responsible for the design of the leakdetection system.


Where there is no gaseous fire suppression system, credit points can beawarded if a statement from the fire designer that no fire suppressionsystem is intended or needed to be installed is provided.


See Design Guide


RE-r6: Energy Model Requirement

Intent To create a decision-support tool to aid the project team in makinginformed decisions about the options, implications and benefits ofvarious aspects of the building design and systems as well as energyuse and supply options.

Credit Requirements Demonstrate through either of the following methods, the predictedbuilding performance on an annual basis through dynamic energysimulation of the designed building.

Budget Building Comparison Method

Compare the performance of the building to a base case simulation(Budget Building) as per ASHRAE/IESNA Standard 90.1-2007 andAddenda, using the minimum acceptable standards for plant andequipment, building fabric and control performance for the buildingand its location and additional requirements shown in Calculation andMethodology.

The output of the model will be a percent improvement in both energyusage and kg of C02e/m2/annum of the Proposed Building over theBudget Building.

Fixed Benchmark Method

Compare performance of the Proposed Building to the GHGbenchmarks per m2 for each building type as per Appendix 4:

The performance of the building must be calculated using theschedules per ASHRAE90.1:2007 Schedule G using the Appendix 4benchmarks instead of the ASHRAE Benchmark in the calculationmethod in clause G1.2. The output of the model will be a percentimprovement in both energy use and in kg of C02e/m2/annum over thebenchmark target and declared separately in C02e/m2/annumgenerated by fossil fuels vs renewable fuels.





Rating


Summary Report detailing the energy simulation per ASHRAE Standard90.1:2007 providing clear breakdowns of all major energy loads andpercentage attributable to passive design aspects.




Summary Report detailing the energy simulation per ASHRAE Standard90.1:2007 providing clear breakdowns of all major energy loads andpercentage attributable to passive design aspects.



Updated summary Report detailing the energy simulation per ASHRAEStandard 90.1:2007 providing clear comparisons of energy modellingresults to utilities billing breakdowns from RE-r1 of all major energyloads and percentage attributable to passive design aspects.


Climate Zone: Use Climate Zone 1A ‘Very Hot- Humid as per ASHRAEStandard 90.1:2007.

Inclusions in Model

The energy model must include any item that isnormally connected to a base-building switchboard, so that the outputfrom the model provides realistic energy targets to help tuneoperational activities.

Operational Schedules

Use 60 hours per week occupancy (100%) over asix-day week and 65 hours per week HVAC and lighting operation.

HVAC 60 hours, over seven days.

BUILDING TYPEItem Office Res RetailCommon lighting Y Y YTenant lighting N Y NHVAC to common space Y Y YAC to tenant space Y Y Y

Ventilation to tenant space(base-building systems, i.e.toilet exhaust)

Y Y Y

Vertical transportation Y Y YDomestic hot water Y Y YWater treatment and pumping Y Y YCarpark ventilation andlighting

Y Y Y

Tenant equipment N N NRenewable energy (basebuilding)

Y Y Y

Irrigation Y Y Y


Office and Retail: Adopt the schedules relating to how the building islikely to be operated. If unknown, use default of 60 hours per weekoccupancy (100%) over a six-day week and 65 hours per week HVACand lighting operation. If the schedules show less than 40 hours ormore than 60 hours then rationale should be detailed.

HVAC 60 hours, over seven days.

Budget Building Method: HVAC System Performance SpecificationsThe Budget Building HVAC system condenser cooling source shall beas per ASHRAE 90.1:2007 Figure 11.3.2.

Internal Heat Load (to determine HVAC energy consumption) Internal load on the air-conditioning system is to be

based on lighting loads internal equipment and expectedoccupant density — nominally 15 m2 per person)

Task Office Retail Res

Lighting 12 W/m2 Tenant: 18W/m2

General: 16W/m2

8 W/m2

Equipment 8 w/m2 - 20 W/m2

Occupants 15 m2/person 5 m2/person 30 m2/person

Budget Building Comparison

Water Treatment SystemTo be considered in proposed building case, but not in budget buildingmodel.

Vertical Transportation and Horizontal TravelatorsBudget building is to assume use of a 5 kWh/m2 base load for verticaltransportation and travelators.

Proposed project to be based on this 5 kWh/m2 benchmark, butadapted to reflect improved motor efficiencies, savings due todestination control and energy regeneration (as applicable), controlstrategies and other efficiencies to be demonstrated in the summaryreport.

Both Methods

Renewable Energy:

Where renewable energy is exported to grid and a net surplusexists, the energy exported is offsetting mains electricity GHGsand this can be included in the model.


Any export is offsetting power imported at another stage untilthe project becomes a net exporter.

Carbon Offsets:For offsite generation potential, the system must be capable of meetingKyoto Protocol (or its successor) compliance under the CleanDevelopment Mechanism (CDM) requirements as defined in Article 12of the Protocol or meet one of the following voluntary schemestandards:

The UK Carbon TrustThe Gold StandardBritish Standards Institution Standard PAS 2050

The model can include either site-based energy generation or, wherethere is a minimum operational carbon reduction of 50% by thebuilding, the purchase of Certified Emissions Reductions (CERs) can beused from any scheme complying with the above standards. Thegreenhouse benefit of purchasing CERs can be included in the model;however, it must be evenly distributed over a 20-year period.

District CoolingDistrict cooling system energy inputs should be considered in the sameway as a stand alone building HVAC system allowing for the totalcooling load times the whole system net efficiency (COP) as suppliedby the District cooling system operator. Where this is not availableassume minimum system COP of 3.2 as required by CreditRequirements for RE-r7 District Cooling.

Simulation softwareSoftware used shall meet either IEA - BesTest standard orANSI/ASHRAE Standard 140-2001 Standard Method of Test for theEvaluation of Building Energy Analysis Computer Programme.

Related Resourcesand References:

International Energy Agency Building Energy Simulation Test (BESTEST)and Diagnostic Method NREL/TP-472-6132 February 1995International Energy Agency Building Energy Simulation Test andDiagnostic Method for Heating, Ventilating, and Air-ConditioningEquipment Models (HVAC BESTEST) NREL/TP-550-30152 January2002http://www.cdmgoldstandard.org/http://www.carbontruststandard.com/http://www.carbontruststandard.com/http://apps1.eere.energy.govwww.ashrae.org

http://www.cdmgoldstandard.org/

http://www.carbontruststandard.com/

http://www.carbontruststandard.com/

http://apps1.eere.energy.gov



RE-r7: District Cooling System Requirement

Intent To encourage the use and operation of efficient district cooling as wellcommunication of the performance of systems over time.

Credit Requirements Demonstrate that any District Cooling (DC) system proposed as part ofthe project within which the site is located achieves a minimumacceptable efficiency of the overall system and regularly declares itssystem performance in a formal and open way. Show:

The DC system achieves the required minimum efficienciesoverallFull insulation of distribution pipes, including undergrounddistribution line(s).Operating Contracts that require operating companies to statedesign coefficients of performance, and to provide annualaudited reports confirming attainment of those standards.





Rating

Provide the following documentation:Extracts from specifications requiring all distribution pipes tobe insulated with material with a minimum R value of R1.0.Extracts from operating agreements specifying the coefficientof performance of the DC system and the requirement forannual performance audits and reporting to PDS and otherrelevant external agencies.


Provide the following documentation:Field audit report confirming all distribution pipes insulatedwith material with a minimum R value of R1.0.Statement from DC plant operator confirming the coefficient ofperformance of the DC system and the commitment toprovision of annual performance audits and reporting to PDSand other relevant external agencies.


Provide the following documentation:Statement from DC plant operator confirming the currentcoefficient of performance of the DC systemand commitment to ongoing provision of annual performanceaudits and reporting to PDS and other relevant externalagencies.


DC systems that complies with the following technical specificationsare able to comply with this requirement:

All distribution pipes from the DC to the project and onsite areinsulated with material with a minimum R value of R1.0 orgeotechnical report provided showing alternative solution asequal to or better overall system performance.Extracts from operating agreements specifying the coefficientof performance (COP) of the DC system and the requirement


for annual performance audits and declaration of ongoingsystem COP on at least an annual basis.District cooling (DC) plant: minimum COP of 3.25 (kW/ton =0.775) for total cooling plant (including cooling towers andprimary pumps).Thermal distribution system including pumping energy –

maximum losses 5%.

COP is defined as net cooling energy exported from the plant over thetotal electric power used by the plant at the utility electric meters ortotal energy used from any fossil fuel source.



RE-1: Improved Energy Conservationand Carbon Reduction


Intent To reward the reduction in energy consumption and carbon emissionsduring building operation.

Credit Requirements Demonstrate a percentage reduction in energy consumption based oncomparison with a Budget Building OR an improvement over aBenchmark performance in CO2e/m2 /annum, as follows:

Budget Building ComparisonMethod

Fixed Benchmark Method

4 CREDIT POINTS = 50%reduction6 CREDIT POINTS = 55%reduction8 CREDIT POINTS = 60%reduction10 CREDIT POINTS = 65%reduction11 CREDIT POINTS = 70%reduction12 CREDIT POINTS = 75%reduction13 CREDIT POINTS = 80%reduction14 CREDIT POINTS = 85%reduction15 CREDIT POINTS = 90%reduction16 CREDIT POINTS = 95%reduction17 CREDIT POINTS = 100%reduction

4 CREDIT POINTS = 35% reduction5 CREDIT POINTS = 40% reduction6 CREDIT POINTS = 45% reduction7 CREDIT POINTS = 50% reduction8 CREDIT POINTS = 55% reduction9 CREDIT POINTS = 60% reduction10 CREDIT POINTS = 65% reduction11 CREDIT POINTS = 70% reduction12 CREDIT POINTS = 75% reduction13 CREDIT POINTS = 80% reduction14 CREDIT POINTS = 85% reduction15 CREDIT POINTS = 90% reduction16 CREDIT POINTS = 95% reduction17 CREDIT POINTS = 100%reduction

ADDITIONAL CREDITS: Where energy savings can be attributed to, additional points are available as

follows:

1 CREDIT POINT = 10% carbon reduction2 CREDIT POINTS = 20% carbon reduction3 CREDIT POINTS = 30% carbon reduction


Awarding Credit PointsCredit Points are awarded at the Conditional Design, Design andLiving Rating Stages. Credit Points are the same for all Types.

There are 11 to 14 levels of achievement. Three Additional CreditPoints are available.



POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating4 - 17 Budget Building Method: Achieve a 50% - 100% reduction

in carbon emissions over a baseline buildingFixed Benchmark Method: Achieve a 35% - 100%reduction in carbon emission over a benchmarkperformance

1 – 10% of carbon reduction is frompassive environmental design

2 - 20% of carbon reduction is frompassive environmental design

3 - 30% of carbon reduction is frompassive environmental design

Design Rating4 - 17 Achieve a 35% - 100% reduction in potable water use over

a baseline building.1 – 10% of carbon reduction is from

passive environmental design2 - 20% of carbon reduction is from


passive environmental design

Living Rating4 - 17 Achieve a 35% - 100% reduction in potable water use over

a baseline building.1 – 10% of carbon reduction is from



passive environmental design


Rating


A summary report of the dynamic energy simulation of thedesigned building as per credit RE-r6 including additionalcalculations to show GHG impacts of refrigerants and firesystems included in overall calculation.BMS point schedules

Passive Savings CalculationsWhere additional credit points are being claimed for passiveenvironmental design, provide the following documentation:

Short report describing the design features included in theproject that meet the Credit Requirements, includingcalculations showing the portion of the project's energysavings that are attributed to the passive design features.Relevant drawings that support the short report indemonstrating how the project meets the Credit Requirements.


Renewable Energy inputs and Carbon OffsetsProvide the following documentation:

Summary analysis of the dynamic energy simulation model ofthe designed building as per credit RE-r2 showing therenewable energy generation capability of the projects systems(onsite or offsite).For site-based systems:

o Statement from the system design engineer stating thatthe system as designed with all componentspecification will be capable of delivering theassumed annual average system performance reliedon in the model.

o CV of the systems design engineer.For offsite systems:

o Copies of system certified emission reductions (CERs)Certificate or Certificates from Approved voluntaryemission reduction scheme.



A summary report of the dynamic energy simulationcomparing the Conditional Design Rating building and AsBuilt building as per credit RE-r6 including additionalcalculations to show GHG impacts of refrigerants and firesystems included in overall calculation.BMS point schedules

Where no changes have been made the Conditional Design reportmay be resubmitted with statement from Design Engineer to this effect.

Passive Savings CalculationsWhere additional credit points are being claimed for passiveenvironmental design provide:

Short report confirming the proposed design features havebeen included in the projectRelevant as-built drawings that support the short report indemonstrating how the project meets the Credit Requirements.


Summary report with photographic evidence and updatedcalculations showing the renewable energy generationcapability of the projects systems (onsite or offsite) has beeninstalled in accordance with Conditional Designcommitments.For site-based systems:

o Statement from the system design engineer stating thatthe system as installed with all componentspecification will be capable of delivering thedesigned annual average system performance reliedon in the RE-r6 energy model.





Provide the following documentation:Audit report comparing simulated building performanceagainst utilities billing actual performance for all primarymeters. Where consumption is sourced from sub-meters actualconsumption is to be interpolated from sub meter readings.Data to separate:

o Base Buildingo Tenanto Exterior use ando All major individual energy uses as per RE-r6.

Where BMS installed:o BMS point schedules

AND

If the energy consumption of the building is not operating asintended, rectification work undertaken to ensure theoperation is restored to Design Rating consumption levels.

Where no changes have been made the Design report may beresubmitted with statement from Design Engineer to this effect.


Summary report showing measured renewable energygeneration capability of the projects systems (onsite or offsite).For offsite systems:

o Copies of current system certified emission reductions(CERs) Certificate or Certificates from Approvedvoluntary emission reduction scheme.


Calculate the Budget building for calculating the passive contributionas per the energy model created above in RE-r2: Energy Model except:

Shading can be downgraded to meet the mandatorycomponents of Requirement 3- Cool Building StrategiesPassive systems can be removed (e.g. thermal storage tanks,light shelves, detune glazing to U=1.5W/m2K. Add carpet ifusing hard floor finishes.No allowance for natural ventilation in mixed mode buildings;Reselecting fans to suit ductwork with 1Pa/lin meter pressuredrop (i.e. do not take into account oversizing ducts).Deselecting any other passive strategies proposed provided therationale is described fully in the Summary Report.NOTE: all mandatory requirements must still be achieved.


BS 5925: 1991, Code of Practice for Ventilation Principles andDesigning for Natural Ventilation


RE-2: Net Positive Energy Credit PointsAvailable: 12

Intent To reward projects for exceeding energyconsumption and carbon emission reductiontargets through the net positive production ofrenewable energy.

Credit Requirements Demonstrate a net positive energy generation by assessing ‘percentagereduction in energy consumption’ based on an improvement over the abaseline benchmark in CO2e/m2 /annum, as follows:

2 CREDIT POINTS = 105% reduction4 CREDIT POINTS = 110% reduction6 CREDIT POINTS = 115% reduction8 CREDIT POINTS = 120% reduction10 CREDIT POINTS = 125% reduction12 CREDIT POINTS = 130% reduction

Renewable energy generation systems must be designed by a qualifiedengineer with a minimum of five years experience.



There are six levels of achievement.


POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating2 Achieve a 105% reduction in carbon emissions4 Achieve a 110% reduction in carbon emissions6 Achieve a 115% reduction in carbon emissions8 Achieve a 120% reduction in carbon emissions

10 Achieve a 125% reduction in carbon emissions12 Achieve a 130% reduction in carbon emissions

Design Rating2 Achieve a 105% reduction in carbon emissions4 Achieve a 110% reduction in carbon emissions6 Achieve a 115% reduction in carbon emissions8 Achieve a 120% reduction in carbon emissions


Living Rating2 Achieve a 105% reduction in carbon emissions4 Achieve a 110% reduction in carbon emissions6 Achieve a 115% reduction in carbon emissions8 Achieve a 120% reduction in carbon emissions




Rating


Summary report with analysis of the dynamic energysimulation model of the designed building as per credit RE-r6showing the renewable energy generation capability of theprojects systems (site-based or offsite).For site-based systems:

o Statement from the system design engineer stating thatthe system as designed with all componentspecifications will be capable of delivering theassumed annual average system performance reliedon in the model.


o Copies of system CERs certificate.



Summary report with photographic evidence and updatedcalculations showing the renewable energy generationcapability of the projects systems (onsite or offsite) has beeninstalled in accordance with Conditional Designcommitments.For site-based systems:

o Statement from the system design engineer stating thatthe system as installed with all componentspecification will be capable of delivering thedesigned annual average system performance reliedon in the RE-r6 energy model.





Summary report showing measured renewable energygeneration capability of the projects systems (onsite or offsite).For offsite systems:

o Copies of current system certified emission reductions(CERs) Certificate or Certificates from Approvedvoluntary emission reduction scheme.


For offsite generation potential, the system must be capable of meetingKyoto Protocol (or its successor) compliance under the CleanDevelopment Mechanism (CDM) requirements as defined in Article 12of the Protocol or meet one of the following voluntary schemestandards:

The UK Carbon TrustThe Gold StandardBritish Standards Institution Standard PAS 2050


The model can include either site-based energy generation or, wherethere is a minimum operational carbon reduction of 50% by thebuilding, the purchase of Certified Emissions Reductions (CERs) can beused from any scheme complying with the above standards. Thegreenhouse benefit of purchasing CERs can be included in the model;however, it must be evenly distributed over a 20-year period.

Any emissions generated from combustion must meet EuropeanCouncil Directive 1999/30/EC of 22 April 1999 relating to limit valuesfor sulphur dioxide, nitrogen dioxide and oxides of nitrogen,particulate matter and lead in ambient air.

System Design Engineer CV: One-page CV showing qualifications,professional registration and recent similar experience including theirspecific role in the projects referenced as experience.


http://cdm.unfccc.int/index.htmlhttp://cdm.unfccc.int/Registry

http://cdm.unfccc.int/index.html

http://cdm.unfccc.int/Registry


RE-3: District Cooling Connection Credit PointsAvailable: 4

Intent To encourage the appropriate use of district cooling as well as toensure the efficient connection to and operation of district cooling.

Credit Requirements Demonstrate where possible, through use of the Water Balance Modeland Life Cycle Costing that connection to a District Cooling (DC)system or implementation of DC Strategy with the following keyelements is the appropriate solution for the project. If DC is shown tobe an appropriate efficient source of cooling energy for the project,show:

Connection to a local DC system and use of available cooling.Full insulation of distribution pipes, including undergrounddistribution line(s).Covenants Codes and Restrictions (CCRs) or OperatingContracts that require operating companies to state designcoefficients of performance, and to provide annual auditsconfirming attainment of those standards.The DC system does not use potable makeup water for heatrejection.




Credit Points will be awarded as follows:POINTS,

ALL TYPESREQUIREMENTS

Conditional Design Rating4 Connect to a district cooling system

Design Rating4 Connect to a district cooling system

Living Rating4 Connect to a district cooling system


Rating


Brief narrative describing how the project meets the CreditRequirements, including details on the amount of cooling tobe drawn from the connection to the local DC system.Extracts from specifications or drawings clearly indicatingconnections to a local DC system.Extracts from specifications requiring all distribution pipes tobe insulated with material with a minimum R value of R1.0.Extracts from CCRs or operating agreements specifying thecoefficient of performance of the DC system and therequirement for annual performance audits.


Extracts from specifications or operating agreement indicatingthe refrigerants used in the District Cooling system and theircompliance with credits RE-r1 and RE-7).Where BMS installed:

o BMS point schedules



Brief narrative describing how the project meets the CreditRequirements, including details on the amount of cooling tobe drawn from the connection to the local DC system.As-built drawings clearly indicating connections to a local DCsystem.Proof from manufacturer of the distribution pipes insulationmaterial, confirming a minimum R value of R1.0.Extracts from CCRs or operating agreements specifying thecoefficient of performance of the DC system and therequirement for annual performance audits.Manufacturer data sheets or operating agreement indicatingthe refrigerants used in the District Cooling system and theircompliance with credits RE-r1 and RE-7).



Statement from DC plant operator confirming the currentcoefficient of performance of the DC system.


Project to connect to a DC system through an Energy Transfer Station(ETS). between the DC system and the connected building . ETS to:

Use heat exchanger/s to transfer energy between DC plant andbuilding.Use three variable speed drive (VSD) controlled pumps of40% peakload capacity each to maintain a constanttemperature differential.Flow meters and temperature sensors on the flow and returnpipe to continually monitor energy consumption. Connect toBuilding Management System (BMS) and report to centraldatabase.Control pump speed to minimise circulation, so only enoughcooling is delivered to meet demand.

Projects that connect to a DC system that complies with the followingtechnical specifications are able to comply with this credit:

Ozone depletion potential requirements of RE-r1 OzoneImpacts of Refrigerants and Fire Systems and global warmingpotential thresholds in credit RE-7 Global Warming Impacts ofRefrigerants.All distribution pipes from the DC to the project and onsite areinsulated with material with a minimum R value of R1.0 orgeotechnical report provided showing alternative solution asequal to or better overall system performance.


Extracts from CCRs or operating agreements specifying thecoefficient of performance (COP) of the DC system and therequirement for annual performance audits and declaration ofongoing system COP on at least an annual basis.District cooling (DC) plant: COP of 3.25 (kW/ton = 0.775) fortotal cooling plant (including cooling towers and primarypumps).Thermal distribution system including pumping energy –

maximum losses 5%.

COP is defined as net cooling energy exported from the plant over thetotal electric power used by the plant at the utility electric meters.

Where district cooling is not available or relevant, this credit isawarded if overall mechanical ventilation and cooling system COP isshown to be in excess of 2.9 with variable output compressor/s orvariable volume refrigerant capability.

Single split systems or non-zoned control multi-split systems are notpermissible under this credit.


www.districtenergy.org

http://www.districtenergy.org


RE-4: Easily Accessible Stairs CreditsAvailable: 1

Intent To reward projects that provide easily accessible, daylit or well litstairs as an attractive option for vertical movement through thebuilding or parts thereof in order to reduce electrical energy use andimprove occupant wellbeing.

Credit Requirements Demonstrate that within the requirements of Fire Regulations andadjacent to or within a close distance of the main building lifts, thereare easily accessible stairs to at least the first five floors of the building.The stairs must have the following characteristics:

A minimum daylight level of 200 lux or be open on at leasttwo sides and well lit with daylight colour corrected lightsources.No doors required for access on any floor (subject to fire safetyrestrictions).Be clearly visible from the lift area.

Connecting at least five other floors within single tenancy buildings(subject to fire safety restrictions), or allowing access to all levelswithin retail facilities will also be considered.






Conditional Design Rating1 Provide easily accessible, daylit stairs to at least the first

five floors

Design Rating1 Provide easily accessible, daylit stairs to at least the first

five floors

Living Rating1 Provide easily accessible, daylit stairs to at least the first

five floors


Rating


Brief narrative explaining how the project meets the CreditRequirements, and including daylight factor calculations.Typical plans including staircase design, indicative elevationssection, showing access to daylight and access points.




Brief narrative including photographs explaining how theproject meets the Credit Requirements, and including daylightlevel.Typical plans including staircase design, indicative elevationssection, showing access to daylight and access points.

Credit Submission:Conditional Living

Rating


Brief narrative including photographs confirming that thenominated stairs continue to meet the Credit Requirements,including daylight or lighting level measurements.Typical plans including staircase design, indicative elevationssection, showing access to daylight and access points. Ifunchanged Design Stage documents can be provided.


Daylight level to be in accordance with LB-r4 and LB-15.

OR

Manufacturer Colour rendering data sheet for lamps used in staircaseand adjoining areas influencing the lighting within the staircase.


See Design Guide


RE-5: Energy Use Reporting Credit PointsAvailable: 1

Intent To encourage building energy managers and designers to monitor,collect and report detailed energy consumption estimates and actualenergy performance to a central database.

Credit Requirements Demonstrate a written commitment from the building owner to supplythe project’s energy simulation data and energy monitoring results to acentral database.

Where the project is providing a commissioning report as part ofcredits LB-23a and LB-23b, all summary, quarterly and finalcommissioning reports on the performance of all building services areconsidered part of the data that must be submitted to the PDSdatabase. All reported information is confidential and any publisheddata will be free from identifiers.






Conditional Design Rating1 Owner commitment to report water consumption data

Design Rating1 Owner commitment to report water consumption data

Living Rating1 Owner commitment to report water consumption data five

floors


Rating


Owner to provide a copy of the written commitment,including specific time frames, to forward the energy modelcreated for credit RE-r6 as well as all future energy monitoringand building use patterns to the central PDS database on anongoing annual basis

Where the project is providing a commissioning report as partof credits LB-41 and LB-42, all summary, quarterly and finalcommissioning reports on the performance of all energy-related building services are considered part of the data thatmust be submitted to the PDS database. All reportedinformation is confidential and any published data will be freeof identifiers.




A copy of the Conditional Design stage Energy Model createdfor credit RE-r6 as well as an As Built Energy Model and reportcomparing and explaining any differences between the two aswell as commitment by any changed owner to continue tosend the data to the central PDS database on an ongoingannual basis

Where the project is providing a Final Tuning report as part ofcredits LB-41 and LB-42, all summary, quarterly and finalcommissioning reports on the performance of all energy-related building services are considered part of the data thatmust be submitted to the PDS database. All reportedinformation is confidential and any published data will be freeof identifiers.



Submission of the Living Stage audit report required underRE-r6 as well as commitment by any changed owner tocontinue to send the data to the central PDS database on anongoing annual basis

Where the project is providing a Living Stage commissioningreport as part of credits LB-41 and LB-42, all summary,quarterly and final commissioning reports on the performanceof all energy-related building services are considered part ofthe data that must be submitted to the PDS database. Allreported information is confidential and any published datawill be free of identifiers.


Not applicable


See Design Guide


RE-6: Peak Load Reduction CreditsAvailable: 4

Intent To reduce energy demand and consequent increased infrastructurerequirements to cater for loads at peak use times through efficientbuilding and services design and site-based renewable energygeneration.

Credit Requirements Demonstrate that peak electrical demand load on the Abu Dhabielectricity grid has been reduced as follows:

2 CREDIT POINTS = Peak electrical demand is reduced by activemeans, a minimum of 15%orPeak demand is less than 40% greater than the project design annualaverage load.

4 CREDIT POINTS = Peak electrical demand is reduced by activemeans, a minimum of 30%orPeak demand is less than 20% greater than the project design annualaverage load



There are two levels of achievement. There are no Additional CreditPoints available.



Conditional Design Rating2 Reduce peak electrical demand by at least 15% or show

peak demand is less than 40% over average demand.4 Reduce peak electrical demand by at least 30% or show

peak demand is less than 20% over average demand.

Design Rating2 Reduce peak electrical demand by at least 15% or show



Living Rating2 Reduce peak electrical demand by at least 15% or show





Rating


Summary report describing the peak load reductionstrategy/ies, including summary calculations for each peakload reduction feature, the total demand reduction figure (peakwithout active system, peak with active systems and asappropriate, average peak load) and the percentagereduction/difference achieved.Equipment data sheets, project specifications describingequipment specified and showing load reduction/generationcapacities used in the calculations provided in the short report.Letter from design engineer for any site-based generationpotential stating the system is capable of providing theongoing stated generating capacity into the future, givenspecified long-term maintenance regimes.Copy of the draft system maintenance requirements to beincluded in the building user guide.

Where BMS installed:BMS point schedules



Summary report describing the peak load reductionstrategy/ies, as installed including summary calculations foreach peak load reduction feature, the total demand reductionfigure (peak without active system, peak with active systemsand as appropriate, average peak load) and the percentagereduction/difference achieved.Equipment data sheets, project specifications describingequipment specified and showing load reduction/generationcapacities used in the calculations provided in the short report.Letter from design engineer for any site-based generationpotential stating the system is capable of providing theongoing stated generating capacity into the future, givenspecified long-term maintenance regimes.Copy of the system maintenance requirements included in thebuilding user guide.

Where BMS installed:BMS point schedules



Clearly demonstrate e.g. via evidence from the BMS that thedemand on the electrical grid will never exceed the thresholdestablished by the projects commitment under this credit.BMS load records for period since initial buildingcommissioning.


Everything except tenancy light and power must be included within


See Design Guide


RE-7: Global Warming Impacts ofRefrigerants & Fire System


Intent To reward the selection of refrigerants and fire systems that minimiseimpacts to the atmosphere.

Credit Requirements Demonstrate the refrigerants and gaseous fire systems used in thebuilding reduce the potential for global warming from their release intothe atmosphere, as follows:

Refrigerants1 CREDIT POINT: =50% of the refrigerants have a globalwarming potential (GWP) of 10 or less

100% of all refrigerants have a GWP 100 (the standard timeframeover which GWP impacts are nominated) of less than 1300 with arefrigerant leak detection and capture system.

2 CREDIT POINTS: =100% of refrigerants have a GWP of 10 orless

no refrigerants are used at all.

Where systems have refrigerant leak detection systems, they must havethe following features:

Located in high-risk parts of the plant.Able to detect and recover and contain a minimum of 80% ofthe refrigerant.Located in a relatively airtight enclosure.Able to automatically pump down and contain refrigerants,without any human intervention.Triggered by a refrigerant leak alarm.

Fire Systems

2 CREDIT POINTS: = 100% of all gaseous fire systems have aGWP 100 of less than 1300

no gaseous fire systems are used at all.



There are two levels of achievement for the first part of the credit andone level of achievement for the second part. Each part is awardedindependently. There are no Additional Credit Points available.



POINTS,ALL TYPES

REQUIREMENTS

Conditional Design Rating1 50% of refrigerants have a GWP of 10 or less OR 100% of

refrigerants have a GWP 100 of less than 1300 and there isa leak detection system

2 100% of refrigerants have a GWP of 10 or less or there areno refrigerants

2 100% of gaseous fire systems have a GWP 100 of 1300 orless or there are no gaseous fire systems

Design Rating1 50% of refrigerants have a GWP of 10 or less OR 100% of




Living Rating1 50% of refrigerants have a GWP of 10 or less OR 100% of





Rating


Refrigerants

Brief narrative on how the project meets the CreditRequirements, including the refrigerants used in both theprimary and secondary systems and a description of therefrigerant containment systems.Manufacturer's data sheets with the stated GWP for eachrefrigerant used in the project's cooling systems.Details (drawings, manufacturer technical data sheet for therefrigerant leak detection and recovery system) and astatement from the design engineer that the system has beendesigned to recover 80% of refrigerant charge.

Fire SystemsWhere gaseous fire systems are used in base building for electricalswitchgear rooms, transformer rooms (if enclosed), telecoms rooms,PABX rooms or for integrated fitout tenancy spaces provide:

Manufacturer's data sheets with the stated GWP for each gasto be used in the project's fire protection system/s.Extracts from building specifications or drawings showingspecification of gas to each area protected by a gaseous fireprotection system matching the Manufacturer data sheets.


.Credit Submission:

Design RatingProvide the following documentation:

Refrigerants

Evidence that the refrigerants installed meet the CreditRequirements and a description of the refrigerant containmentsystems.Manufacturer's data sheets with the stated GWP for eachrefrigerant used in the project's cooling systems.Details (drawings, manufacturer technical data sheets for therefrigerant leak detection and recovery system) and astatement from the design engineer that the system installed, isas designed and suitable o recover 80% of refrigerant charge.

Fire SystemsWhere gaseous fire systems are used in base building for electricalswitchgear rooms, transformer rooms (if enclosed), telecoms rooms,PABX rooms or for integrated fitout tenancy spaces provide:

Evidence that the fire suppressant gases installed meet theCredit Requirements.Manufacturer's data sheets with the stated GWP for each gasused in the project's fire protection system/s.



Refrigerants

Extract from LB-40 Commissioning report verifying therefrigerant leak detection and capture system continues tooperate as intended.

ORReport demonstrating the ongoing successful operation of therefrigerant leak detection and capture system

ANDIf the refrigerant leak detection and capture system does notcontinue to operate as intended, rectification work undertakento ensure the operation is restored to approved Design Ratingfunctionality levels.

Fire Systems

Where gaseous fire systems are installed provide site inspection reportshowing the regular maintenance schedule, programmed maintenancethat has occurred and certifying the correct ongoing operation of thesystem with gaseous fire suppressant in accordance with this credit.




AIRAH Air Conditioning and Refrigeration Industry RefrigerantSelections Guide- 7th Edition 2003

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