Materials and Resources
1. Materials and Resources• Goals• LEED NC Prerequisites & Credits
• Intent & Strategies• LEED EBOM Credits
2. Indoor Environmental Quality
3. Phases of a LEED Project
4. Review of Referenced Standards
5. Review Questions
Session 3: Agenda
Materials & Resources
MR C 3 Materials Reuse, Specify 5%, 10% 1-2
MR C 4 Recycled Content, Specify 10%, 20% (post consumer + ½ post industrial)
1-2
MR C 5 Regional Materials, 10%, 20% Extracted, Processed, & Manufactured Regionally
1-2
MR Pr 1 Storage and Collection of Recyclables Req
MR C 1.1 Bldg Reuse, Maintain 55%,75%, 95% of Existing walls, floors and roof 1-3
MR C 1.2 Bldg Reuse, Maintain 50% Interior Non-Structural Elements 1
MR C 2 Construction Waste Management, Divert 50%, 75% 1-2
LEED New Construction 1 Prerequisite + 14 points
MR C 6 Rapidly Renewable Materials 1
MR C 7 Certified Wood 1
Materials & Resources
MR C 3 Materials Reuse, Specify 5%, 10% 1-2
MR C 4 Recycled Content, Specify 10%, 20% (post consumer + ½ post industrial)
1-2
MR C 5 Regional Materials, 10%, 20% Extracted, Processed, & Manufactured Regionally
1-2
MR Pr 1 Storage and Collection of Recyclables Req
MR C 1.1 Bldg Reuse, Maintain 75%, 95% of Existing walls, floors and roof 1-2
MR C 1.2 Bldg Reuse, Maintain 50% Interior Non-Structural Elements 1
MR C 2 Construction Waste Management, Divert 50%, 75% 1-2
LEED for Schools 1 Prerequisite + 13 points
MR C 6 Rapidly Renewable Materials 1
MR C 7 Certified Wood 1
Materials and Resources
MR C 3 Materials Reuse, Specify 5%, 10% 1
MR C 4 Recycled Content, Specify 10%, 20% (post consumer + ½ post industrial)
1-2
MR C 5 Regional Materials, 10%, 20% Extracted, Processed, & Manufactured Regionally
1-2
MR Pr 1 Storage and Collection of Recyclables Req
MR C 1.1 Bldg Reuse, Maintain 25%,33%, 42%, 50%, 75%of Existing walls, floors and roof
1-5
MR C 2 Construction Waste Management, Divert 50%, 75% 1-2
LEED Core and Shell 1 Prerequisite + 13 points
MR C 6 Certified Wood 1
(excludes rapidly renewable credit)
Materials and Resources
What is embodied energy?The quantity of energy required to manufacture, andsupply to the point of use including:
• Extraction • Transportation• Manufacturing
• Assembly • Installation• Some definitions also include disassembly &
removal
Question
Which of the following building materials commonly has the highest embodied energy?
a. Brickb. Copperc. Aluminumd. Slatee. Glass
Question
Which of the following building materials commonly has the highest embodied energy?
a. Brickb. Copperc. Aluminumd. Slatee. Glass
http://www.grenhouse.gov.au/yourhome/technical/fs31.htm
Embodied Energy
http://www.greenhouse.gov.au/yourhome/technical/fs31.htm
How Does Embodied Energy Compare With Annual Operating Energy?
Materials and Resources
http://www.cmmt.csiro.au/brochures/tech/embodied/index.cfm
For a typical office building:embodied energy = 10 to 30times the annual operating energy
Materials and Resources
What is life cycle cost?
The cost of a material over its entire life span including:
• First Cost (manufacture & installation)• Operation• Maintenance• Cost of Replacement• Disposal or Salvage
What are some environmental considerations in material
selection?
Brainstorming
What are some environmental considerations in material selection?Brainstorming
• Affordability– Life cycle cost– Cost of alternatives
• Embodied Energy
• Durability & Maintenance
• Materials Efficiency– Reuse & recycle– Dimensional planning– Material management
• Resource Efficiency
Additional environmental considerations in material selection are:
Brainstorming
• Indoor Air Quality (IAQ)– During construction– Initial occupancy – Over time
• Energy Efficiency
• Water Conservation
• Toxicity & Pollution– In building– In ecosystem
Intent:Facilitate the reduction of waste generated by building occupants that is hauled to and disposed of in landfills.• Provide an area that is dedicated to the collection and
storage of recycling, including paper, corrugated cardboard, glass, plastics and metals.
Storage and Collection of Recyclables
Potential Technologies and Strategies:Coordinate the size and functionality of the recycling areas with the anticipated collection services. Consider employing cardboard balers, aluminum can crushers, recycling chutes and collection bins at individual workstations (or residential units.)
Storage and Collection of Recyclables
Building Reuse
Intent:Extend the life cycle of existing building stock, conserve resources, retain cultural resources,reduce waste and reduce environmental impacts of new buildings as they relate to materialsmanufacturing and transport.
• Consider reusing existing walls, floors & roof and interior non-structural elements
Building Reuse
Potential Technologies and Strategies:
Consider reuse of previously occupied buildings. Remove elements that pose contamination and upgrade components that would improve energy and water efficiency such as windows, mechanical systems and plumbing fixtures.
Building Reuse
Construction Waste Management
Intent:Divert construction and demolition debris from disposal in landfills and incinerators. Redirect recyclable recovered resources back to the manufacturing process. Redirect reusable materials to appropriate sites.
Construction Waste Management
• Primary construction and demolition waste products are wood, asphalt/concrete/masonry, drywall, roofing, metals and paper products.
• Consider recycling cardboard, metal, brick, acoustical tile, concrete, plastic, clean wood, glass, gypsum wallboard, carpet and insulation.
• Diversion may include donation of materials to charitable organizations and salvage of materials on-site.
Potential Technologies and Strategies:• Create a construction waste management plan that identifies the materials to be
diverted and whether they will be source separated or commingled.
Construction Waste Management
Carpet accounts for approximately 2% by volume of all municipal solid waste. Recycling was made easier by the content labeling program: www.interfaceinc.com
Credit Synergies:•Construction waste management•Recycled content•Low-emitting material
Tip
Intent:Reuse building materials and products in order to reduce demand for virgin materials and to reduce waste, thereby reducing impacts associated with the extraction and processing of virgin resources.
Materials Reuse
Potential Technologies and Strategies:Identify opportunities to incorporate salvaged materials into building design and research potential material suppliers.
Consider salvaged materials such as beams and posts, flooring, paneling, doors and frames, cabinetry and furniture, brick and decorative items.
Materials Reuse
Material generated by end-users of the product
Post-Consumer vs. Pre-Consumer(Post-industrial) material diverted from the waste stream during the manufacturing process. Excluded are materials capable of being reclaimed within the same process that generated it.
Recycled Content
Intent:Increase demand for building products that incorporate recycled content materials, thereby reducing impacts resulting from extraction and processing of virgin materials.
Recycled content is defined in accordance with the International Organization for Standardization document ISO 14021-1999 Environmental Labels and Declarations—Self-Declared Environmental Claims (Type II Environmental Labeling)
Recycled Content
Assemblies:• In assemblies recycled content is determined by weight. • Recycled fraction of the
assembly is then multiplied by the cost of assembly to determine the recycled content value.
Recycled Content
Regional Materials
Intent:Increase demand for building materials and products that are extracted and manufactured within the region, thereby supporting the use of indigenous resources and reducing the environmental impacts resulting from transportation.
Regional Materials
Use building materials or products that have been extracted, harvested or recovered, as well as manufactured, within 500 miles of the project site (based on cost of the total materials value).
Regional Materials
Buildings:Structural SteelConcreteMasonryGlass and GlazingGravel & Fill
Interiors:Gypsum Wall Board
Regional Materials
Typical High-Cost Materials
Furniture
What are some rapidly renewable building materials(made from plants harvested within a ten-year cycle or less)?
Global b2b Network
Cityfloors
Des
ignb
uild
-net
wor
k.co
m
Inhabitat.com
Rapidly Renewable Materials
Intent:
Reduce the use and depletion of finite raw materials and long-cycle renewable materials by replacing them with rapidly renewable materials.
Potential Technologies and Strategies:
Consider materials such as bamboo, wool, cotton insulation, agrifiber, linoleum, wheatboard, strawboard and cork.
Rapidly Renewable Materials
Tips from the Pros
Denim insulation performs well for both acoustical and thermal applications.
Available with or without foil facing
Also typically contains at least 90% post-industrial recycled content.
Certified Wood
Intent:Encourage environmentally responsible forest management.
Certified Wood
Includes but isn’t limited to structural framing and general dimensional framing, flooring, sub-flooring, wood doors and finishes.
Materials and Resources
When we talk about embodied energy and life cycle cost in the operation and maintenance of existing buildings, to what are we referring?
• Items purchased for the every day operation of buildings (manufacture & installation).
• During tenant fit outs and retrofits, the purchasing and construction of building spaces.
What are some of the overarching goals of the Materials and
Resource Category for existing buildings?
Review Question
Answer: What are some of the overarching goals of the Materials and Resource category for existing buildings?
Reduce the embodied energy associated with the products that are purchased
To reduce the consumption of virgin materials To encourage regional manufacturing and extraction To encourage recycling and reuse
Regional Materials
LEED EBOM – Materials and Resources 2 Prerequisites, 10 Points
MR Pr 1 Sustainable Purchasing Policy Req.
MR Pr 2 Solid Waste Management Policy Req.
MR C 1 Sustainable Purchasing – Ongoing Consumables 1
MR C 2.1 - 2.2
Sustainable Purchasing – Electric, Furniture 1-2
MR C 3 Sustainable Purchasing – Facility Alterations and Additions
1
MR C 4 Sustainable Purchasing – Reduced Mercury in Lamps
1
LEED EBOM – Materials and Resources 2 Prerequisites, 10 Points
MR C 5 Sustainable Purchasing – Food 1
MR C 6 Solid Waste Management – Waste Stream Audit 1
MR C 7 Solid Waste Management – Ongoing Consumables 1
MR C 8 Solid Waste Management – Durable Goods 1
MR C 9 Solid Waste Management – Facility Alterations and Additions
1
Questions?
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