Middlesex Street - e-voice.org.uk · A new energy StrAtegy for MiddleSex Street ... Simple...

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Middlesex Street A NEW ENERGY STRATEGY FOR MIDDLESEX STREET Improvements to buildings aim to reduce CO 2 emissions by 80% achieved by a package of measures: Central combined heat and power plant Heat exchanger to each flat New controls for each user New triple glazed windows External insulation Reduced ‘leakiness’ New ventilation systems COMBINED HEATING PLANT (CHP) CHP is similar to mini power station. CHP uses otherwise wasted heat that is produced in generation of electricity. Heat generated will provide heating and hot water demands across the estate. Electricity will provide power for Landlord’s supply. CHP will be installed in existing boiler room below PetticoatTower. CHPs can reduce energy use by 30% compared with heat and electricity generated separately. CO 2 EMISSIONS: Current Estimated CO 2 Emissions 745 Tonnes/Year Proposed Estimated CO 2 Emissions 143 Tonnes/Year Savings 81%

Transcript of Middlesex Street - e-voice.org.uk · A new energy StrAtegy for MiddleSex Street ... Simple...

Page 1: Middlesex Street - e-voice.org.uk · A new energy StrAtegy for MiddleSex Street ... Simple individual heating controls to each room 4) New ventilation unit to each flat - supply and

Middlesex StreetA new energy StrAtegy for MiddleSex Street

Improvements to buildings aim to reduce CO2 emissions by 80% achieved by a package of measures:

• Centralcombinedheatandpowerplant• Heatexchangertoeachflat• Newcontrolsforeachuser• Newtripleglazedwindows• Externalinsulation• Reduced‘leakiness’• Newventilationsystems

CoMBined HeAting PlAnt (CHP)

• CHPissimilartominipowerstation.• CHPusesotherwisewastedheatthatisproducedingeneration ofelectricity.• Heatgeneratedwillprovideheatingandhotwaterdemands

acrosstheestate.• ElectricitywillprovidepowerforLandlord’ssupply.• CHPwillbeinstalledinexistingboilerroombelowPetticoatTower.• CHPscanreduceenergyuseby30%comparedwithheatand

electricitygeneratedseparately.

Co2 eMiSSionS:

CurrentEstimatedCO2Emissions 745Tonnes/YearProposedEstimatedCO2Emissions 143Tonnes/YearSavings 81%

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Middlesex StreetinternAl CHAngeS to eACH dwelling

New services and controls to include:

1)Heatexchangerineachdwellingtosupplytheheatingandhotwater

2)Individualmeterssoresidentsonlypayfor whattheyuse3)Simpleindividualheatingcontrolstoeachroom4)Newventilationunittoeachflat-supplyand

extractwithheatrecovery5)Newlowenergylighting

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Middlesex StreetVentilAtion SySteM

Benefits Include:

• Energyefficientventilationrunscontinuouslyatverylowspeed.

• Unituseshot‘stale’airinflattoheatincomingfreshair.

• Incomingairfilteredanddeliveredtolivingroomsandbedrooms.

• Airextractedfrombathroomsandkitchens.

• Systemdeliversventilationrequirementsforhealthyindoorairquality.

• Residentsstillabletoopenwindowsifneedbe.

Typical extract grilleTypical ventilation/heat recovery unit

Typical boxing in of vent ducts

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Middlesex StreetwindowS

NORDAN MAKES A DREAM COME TRUE

NorDan has played a part in realising a dream for Gerry Curran, retired head teacher of Featherstone Primary School in Southall, Middlesex, as its state-of-the-art windows were selected for the creation of the new school that was his life’s work. The new school is part of the Ealing Schools PFI 2 project, procured by London Borough of Ealing to provide three replacement schools. Key considerations for the new sites were to deliver attractive, modern, spacious learning environments that were also secure, safe and energy efficient.

So it was critical that the new £8 million Featherstone School used windows and doors of the highest quality materials that would maximise natural light without leaving the children exposed to danger and crucially that would help to minimise running costs and be easy to clean. NorDan’s low maintenance timber tilt and turn windows were selected as they met all these requirements.

The new school was designed by Ellis Williams Architects. Valerie McLauchlan, associate at the consultancy, explains why NorDan was selected for this socially valuable and prestigious project: “NorDan delivered everything that we needed for a project of this nature. School projects have very specific and demanding requirements because they need long-lasting, highly secure and environmentally friendly products that also help create the perfect learning environment at a competitive price.”

PROjECT NAME

Featherstone Primary School

CliENT

London Borough of Ealing

ARChiTECT

Ellis Williams Architects

PTO

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ect P

rofil

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NORDAN HELPS SUSTAIN BRISTOL’S HERITAGE

NorDan’s contribution to Crest Nicholson’s massive ongoing mixed development project in Bristol Harbourside has helped the leading housebuilder to win a prestigious award for sustainable development.

NorDan provided its unique low energy aluminium clad timber tilt and turn windows, fixed lights along with inward and outward opening doors for the £350m, 19.7-acre Harbourside project.

The construction of the five blocks, containing some 600 new residential units and more than an equivalent area of commercial property, started in 2002 and is due for completion in 2011.

Insight Investment, in partnership with WWF (formerly known as the World Wildlife Fund) and its Government-supported ‘One Million Sustainable Homes’ campaign, awarded Crest Nicholson the joint first place in its second report on performance and reporting on sustainability in the housebuilding industry.

The development won the award partly because it made maximum use of available daylight and solar energy in the huge Bristol project.

This was no easy project to get off the ground because of stringent government environmental and planning guidelines that included the £9 million remediation of former gasworks and initial vehement local opposition to the development.

It took three years and three different approaches before the project finally got the go-ahead in 2004. To overcome the furious resistance that had put a stop to the two previous proposals, Crest hired Edward Cullinan Architects to ensure the balance was right between aesthetics and environmental performance.

The result is an extremely high quality project in which NorDan’s low U-value products play an important part by significantly reducing heat loss and therefore energy consumption. With the very real threat of climate change, windows can play

PROjEcT NAmE

BrISTOl HArBOUrSIDE

cLIENT

Crest Nicholson

ARcHITEcT

Edward Cullinan Architects

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an increasingly important role in the retention of heat within buildings and in the consequent reduction in wastage of vital energy resources.

“We chose NorDan for its reliability and its integrated design, supply and install service,” comments Darren Dancey, production director at Crest Nicholson (South West). “We also selected the NorDan products so that we could have coloured aluminium on the external face of the window but maintain an internal natural timber finish, creating a striking contrast between a contemporary exterior and a traditional natural interior.

“We have been very happy with our relationship with NorDan and hope it continues,” he adds.

“The stringent sustainability aspects of this project provided an ideal opportunity to demonstrate the many environmental advantages of the NorDan product range,” explains Dareth Daley, sales and marketing director of NorDan UK.

The highly secure nature of NorDan’s windows and doors, plus the fact that the tilt and turn windows are so easy to clean were also important factors in the selection of its products.

So the Bristol Harbourside residents can now enjoy low carbon footprints, easy maintenance and stunning wide views of the regenerated and vibrant harbourside area in a flagship 21st century development.

ABErDEEN83-87 CausewayendAberdeenAB25 3TQTel: 01224 633174 Fax: 01224 642584

GlENrOTHESUnit 12, Eastfield Bus. Pk.Newark road SouthGlenrothesKY7 4NSTel: 01592 775800Fax: 01592 775900

WISHAW96 Kirk roadWishawNorth lanarkshireMl2 7NS

Tel: 01698 376922 Fax: 01698 376852

GlOUCESTErGreen Farm Bus. Pk.Falcon CloseQuedgeleyGloucesterGl2 4lYTel: 01452 883131 Fax: 01452 883739

NEEDHAM MArKETMaitland roadlion Barn Bus. Pk.Needham MarketSuffolkIP6 8NZTel: 01449 722922Fax: 01449 722911

Email: [email protected]: www.nordan.co.uk

Ref: ND080402 (july 2008)

Triple glazed uPVC replacement windows or aluminium clad timber windows.

Fanlight windows in the low rise dwellings to be double glazed in aluminium frames.

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Middlesex StreetwindowS

Windows are currently single glazed in metal frames with no draughtstripping.

Almost all will be replaced with triple glazed windows, reducing heat loss by about 85%. New windows will be made from timber with an aluminium face to reduce the need for future external redecorations

Fanlights windows in the low rise are not high enough to enable replacement with triple glazed units. Instead double glazed aluminium windows will be fitted reducing heat loss by about 68%

environment, with stringent safety standards. He continues: “In the public sector, product specification is often a balance between performance and budget, and NorDan manages to get this right, although at Sedgehill the quality of the product was the deciding factor. Sustainable sourcing of materials was another reason for selecting NorDan, as its PEFC accreditation is a guarantee the timber is sourced from PEFC-certificated sustainable sources and can be traced from forest to factory.

“But what’s more, I think NorDan windows look good. l particularly like the look of the timber which I feel enhances the aesthetic of a building.”

The design of the new Sedgehill School incorporates a number of environmentally-friendly features such as biomass boilers, photovoltaic panels and solar water heating. 18 percent of the school’s electricity and heat requirement is generated from renewable sources.

“We were thinking ahead in the design,” comments Behrouz. “The new school embraces sustainability principles, including BREEAM, with a design based on proven principles and experience, but enhanced and developed to meet the school’s vision and objectives for the twenty-first century.”

Sedgehill School is the fourth largest in London, with 1750 students across the secondary school and the sixth form facility. In a carefully-planned build programme, the new school has been built partly on the site of the existing 1950s school, with the old building to be demolished after the swap to the new facility and replaced with a sports hall, complete with NorDan timber windows.

Aberdeen83-87 causewayendAberdeenAb25 3tQtel: 01224 633174 Fax: 01224 642584

glenrotheSUnit 12, eastfield bus. Pk.newark road SouthglenrothesKY7 4nStel: 01592 775800Fax: 01592 775900

WiShAW96 Kirk roadWishawnorth lanarkshireMl2 7nS

tel: 01698 376922 Fax: 01698 376852

gloUceStergreen Farm bus. Pk.Falcon closeQuedgeleygloucestergl2 4lYtel: 01452 883131 Fax: 01452 883739

needhAM MArKetMaitland roadlion barn bus. Pk.needham MarketSuffolkiP6 8nZtel: 01449 722922Fax: 01449 722911

email: [email protected]: www.nordan.co.uk

Ref: ND090205 (August 2009)

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Middlesex StreettHerMAl PerforMAnCe

Poor thermal performance of buildings means wasted energy and unnecessary CO2 emissions which means higher energy bills.

Thermal images indicate areas of heat loss. The brighter the colour, the greater the heat loss.

Heat loss generally through windows.

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Middlesex StreettHerMAl PerforMAnCe

Ways to improve insulation performance of existing buildings:

• Replacewindows• Insulateexternalwalls

drylining

Insulation on the inside:

• Leavesexternalwallcold• Providesthinlayerinsulationonly• Reducesroomsizes• Messyanddisruptive

CAVity fill

If the structure is in two parts and has a ‘cavity’:

• Completefillisnotalwayspossible• Thicknessofinsulationlimitedby

cavitywidth• Nodisruptioninternally

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Middlesex StreettHerMAl PerforMAnCe

externAl ClAdding will Be tHe MoSt effeCtiVe SolUtion for MiddleSex Street

For maximum benefit overcladding, roof insulation, replacement windows and an efficient energy system should all be installed at the same time.

externAl ClAdding

External cladding is like wrapping a blanket around a building and has many advantages:

• Anythicknesscanbeused• Coldbridgesareeliminated• Existingstructurestayswarm• Nodisruptiontoresidentsinternally

tyPiCAl externAl ClAdding SeCtion

1 Insulationcanbefixedtotheoutsidewallsorsupportedbyrevits

2 Weatherproofouterlayercanberender,metal,apanelsystemoreventimber.

Differentinsulationcanbeused.Externalfacecanbeinmanycolours

1

2

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Middlesex Street

Context for refurbishment • TheGovernmenthassetanewCO2reductiontargetforhousingof80%of1990levelsby2050• Residentialbuildingscurrentlyaccountforabout27%ofallcarbonemissionsintheUK• Oftheexistinghousingstock,80%willstillbeinusein2050• Energyefficiencyimprovementsduringrefurbishmentarethereforeofcriticalimportanceto

reduceCO2emissionsandimproveresidentcomfortlevels

PettiCoAt tower

• Theproposalswillreduceheatlossbyupgradingthethermal

performanceofthebuildingwhilealsocreatinganew

visualappearanceandimprovingresidentcomfortlevels

• Theimprovementsadoptedwillmeanthatheatingdemandis

reducedtoanabsoluteminimum

• Theexistingcavitywallswillbefilledwithinsulationwherepossible,

thenovercladontheoutsidewithanadditionallayerofinsulation

toreduceheatlossfurther

• Existingwindowswillbereplacedwithhighperformancetriple

glazedunits,greatlyreducingheatloss,downdraughtsandnoise

• Improvementswillminimiseairleakagethroughtheoutsidewalls,

againfurtherreducingheatloss

• FilteredfreshairwillbesuppliedtotheflatsviaaHeatRecovery

Ventilationsystem,whichrecoversupto90%ofthewarmthusually

ventedfromthebuildingandwillimproveindoorairqualityand

comfortlevels

Asimilarapproachusingexternalcladdingcouldbeappliedtothelowriseflatsandmaisonettes

tHerMAl PerforMAnCe

the image of the tower will be greatly improved alongside other buildings in the City

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Middlesex StreetrefUrBiSHed BUildingS And SUitABle ClAddingS

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Middlesex StreetrefUrBiSHed ProJeCtS