determining environmental attributes of building materials … · 2020-03-24 · determining...

Determining EnvironmentalAttributes of Building

Materials Under VariousGreen Building Programs

ll LEED LEEDll Green Globes Green Globesll Seattle (King County) Built Green Seattle (King County) Built Greenll Austin Green Building Program Austin Green Building Programll California Green Builder Program California Green Builder Programll Built Green Colorado Program Built Green Colorado Programll Wisconsin Wisconsin GreenbuiltGreenbuilt

Determining Environmental Attributes ofBuilding Materials Under Various Green

Building Programs

Leadership in Energyand Environmental

Design (LEED)

Point Distribution within Several LEED Programs

108 points 69 pointsTOTAL 1 pointHomeowner awareness 10 pointsLocation and linkages 4 points 5 pointsInnov. and design process 29 points 15 pointsIndoor air quality 24 points 13 pointsMaterials and resources 14 points 17 pointsEnergy and atmosphere 12 points 5 pointsWater efficiency 14 points 14 pointsSustainable sites

LEED-H,Version 1.72

LEED-NC,Version 2.2

Point Distribution within Several LEED Programs

108 points 69 pointsTOTAL 1 pointHomeowner awareness 10 pointsLocation and linkages 4 points 5 pointsInnov. and design process 29 points 15 pointsIndoor air quality 24 points 13 pointsMaterials and resources 14 points 17 pointsEnergy and atmosphere 12 points 5 pointsWater efficiency 14 points 14 pointsSustainable sites

LEED-H,Version 1.72

LEED-NC,Version 2.2

Points for “environmentally preferable materials” –

5 under LEED-NC

4 under LEED-H

Credit 7 - FSC certified wood

Credit 6 - Rapidly renewable matls (10-year or less harvesting cycle)

Credit 5.2 - Local/regional matls (harvesting)

Credit 5.1 - Local/regional matls (manufacturing)

Credit 5Environmentally preferable productsCredit 5.1 - Tropical hardwoods, if used,must be FSC [prerequisite]Credit 5.2 - Select environmentallypreferable products from list.

Credit 4.1 and 4.2 - Use of matls with recycled content

Credit 3 - Materials extracted/ manufacturedwithin 500 miles

Credit 3.1 and 3.2 - Use of salvaged/refurbished/reused matls

Credit 2.2 - Advanced framing techniques Credit 2.1 and 2.2 - Reduction of construction waste

LEED-H LEED-NC

Credits Related to Characteristics of Construction MaterialsUnder the LEED-NC and LEED-H Programs

Low-VOCPaintWalls, ceiling, trimLow-VOCInsulationRoof + floor + wallNo carpet in houseFlooringFloorLow-VOC carpet and padFlooringFloorLow-VOCCountersInterior

Low-VOCCabinets andtrim

InteriorQualifying EPPsComponentAssembly

FSC-certifiedFramingFloorFSC-certifiedFramingRoofCement replacementsCementFoundation

Guidelines for Environmentally PreferableMaterials Under LEED

- Recycled content carpet and pad- linoleum- bamboo- FSC certified wood- recycled content tile- sealed concrete

FlooringFloor

Qualifying EPPsComponentAssembly

Guidelines for Environmentally Preferable MaterialsUnder LEED

- Recycled content- FSC-certified

SheathingRoof + floor + wall

- Recycled content- Vegetated

RoofingRoof

Recycled contentInsulationRoof + floor + wall

Recycled contentInsulationRoof + floor + wall

Recycled contentGypsum boardWalls + ceilingsFSC-certifiedFramingInterior wallFSC-certifiedFramingExterior wall



Recycled contentCountersOther


Cabinets and trimOther


Doors and windowsOther Recycled contentDeckingLandscape



SidingExterior wall


ß To change the Rapidly Renewable Credit (Credit 6 under LEED-NC in Table 3) to a Biobased Credit.

Proposed Changes to LEED

ß To change the Rapidly Renewable Credit (Credit 6 under LEED-NC in Table 3) to a Biobased Credit.

ß To modify MRc7 to establish a basis for adoption of certification systems but maintain the FSC Certification requirement for wood products at this time.

Proposed Changes to LEED

ß There is no provision for systematic analysis of any construction material except wood – and then only by FSC.

ß Building materials assessments are not informed by LCA/LCI.

ß Designation of environmentally preferable materials is based largely on intuition, internal politics, and single attributes.

LEED Bldg. Mat’ls Stds Summarized

ß Materials designated as “green” under LEED are not necessarily better than non-designated materials; some, in fact, are demonstrably worse.

LEED Bldg. Mat’ls Stds Summarized

Green Globes

Point Distribution within Green Globes

1000 pointsTOTAL 200 points200 pointsIndoor environment 70 pointsEmissions, effluents, other 100 pointsResources 85 pointsWater 380 pointsEnergy 115 pointsSite 50 pointsProject management

PointsCategoryCategory

10 - What proportion of bldg matls and components are reused?10 - What proportion of bldg materials contain recycled post-

consumer content? 5 - What proportion of materials are bio-based mat’ls? 5 - What proportion of lumber and panel products are third-party

certified (SFI, CSA SFM Program, FSC, ATFS)?

30Minimize consumption and depletion of material resources

40Have the following assemblies been selected based on a life cycleassessment considering embodied energy and green house gasemissions? – Foundations and floor assemblies, structural systems,roof assemblies, other mat’s (cladding, windows, etc.)

PointsCharacteristic

Credits Related to Characteristics of Construction MaterialsUnder the Green Globes Program

10Re-use of existing structures10Building durability, adaptability and disassembly

Reduction, re-use and recycling of waste 10


Credits Related to Characteristics of Construction MaterialsUnder the Green Globes Program

ß A central focus of bldg matls assessment is LCA/LCI using international protocols.ß The program seeks to minimize use of non- renewable materials.ß Guidelines throughout the standards are based on established standards (ANSI, ASHRAE).ß There is no requirement for certification of any material other than wood, but any one of a number of certification programs are allowed.

Green Globes Bldg. Mat’ls Stds Summarized

The King County(Seattle) Green Building

Program

Point Distribution within Seattle GBP

827 points*TOTAL

129 pointsPromote environmentallyfriendly homeowner O&M

205 pointsMaterials efficiency 152 pointsHealth and indoor air quality 186 pointsEnergy efficiency 155 pointsSite and water RequiredBuild to green codes/regulations


* Other points for innovation and certain required elements.

Point Distribution within Seattle GBP

827 pointsTOTAL

129 pointsPromote environmentallyfriendly homeowner O&M

205 pointsMaterials efficiency 152 pointsHealth and indoor air quality 186 pointsEnergy efficiency 155 pointsSite and water RequiredBuild to green codes/regulations


8Use wood composites rather than lumber

3Formaldehyde, CFC, HCFC free products used* 3Use linoleum, cork, or bamboo flooring

8High durability products used10Use locally produced materials

17Use recycled materials27Wood FSC certified or equivalent25Limit project size

30Reuse materials48Recycle construction wastes/minimize wastes


Credits Related to Materials Efficiency Under the Seattle GBP

95/205

* Additional points (12-27) under the Health and Indoor Air Quality Section

ß Building materials assessments are not informed by LCA/LCI.ß Recycling reuse is a central theme.ß FSC or equivalent means FSC.ß Emphasis on not using sawn lumber.ß There is no requirement for certification of any material other than wood.

Seattle GBP Bldg. Mat’ls Stds Summarized

The Austin, TexasGreen Builder Program

ß The nation’s first green building program.

ß The program is rather informal (unless rating of a project is requested), with fact sheets available to builders on a wide range of topics, including construction materials.ß Assistance is provided to construction professionals and consumers in making choices when evaluating green building materials and systems.

Austin, Texas Bldg. GBP Stds Summarized

ß Builders can ask that a project be rated through this program. Ratings are done using USGBC (LEED) requirements.

Austin, Texas Bldg. GBP Stds Summarized

The California GreenBuilder Program

Focus Areas within California GBP

Construction waste diversionAdvanced ventilationWood conservationWater conservationEnergy efficiency

Focus AreaFocus Area

ß Is not a point-based system.

ß Seeks to minimize wood use through the use of engineered wood, computer controlled saws, off-site production of modular sections.ß Considerable attention to diversion of material from landfills.ß Certified wood specified, but certification may be SFI, ATFS, CSA, or FSC.

California Green Builder Program Summarized

ß Little attention to individual characteristics of building materials.

ß Building materials not assessed using LCA/LCI.

California Green Builder Program Summarized

The Built GreenColorado Program

Point Distribution within Built Green Colorado

12230

Req.Features

871+TOTAL 76+Water resource conservation

230Material resource efficiency 150+Health and safety/Indoor air qual. 380+Energy efficiency

35Site protectionPoints*CategoryCategory

* Each home must have a minimum of 70 points and include all required features.

15House size <1,500 ft2

8Use of locally sourced materials

12CFC, HCFC, Formaldehyde free* 13Reduced wood use (advanced framing)

8Use of long-life materials.

24Use engineered wood to reduce use of lumber. 23Wood materials are third party certified.

14Use of structural insulated panels instead of standard framing.

6Minimum job site waste.

30Use materials other than wood54Building materials with recycled/reused content


Credits Related to Material Resource Efficiency Under theBuilt Green Colorado Program

* Additional points under the Health and Indoor Air Quality Section

ß Major emphasis on recycling/reuse.ß Major emphasis on reduction of wood use (and particularly lumber use) and substitution of non-wood materials for wood.ß Third – party certified wood specified, but can be SFI, ATFS, CSA, or FSC.ß Certification not required for any material other than wood.ß No provision for systematic assessment of materials using LCA/LCI.

Colorado Built Green Program Summarized

The Wisconsin GreenBuilt Program

Point Distribution within Wisconsin GBP

185 pointsMaterials selection 153 pointsEnergy efficiency

47 pointsLandscape conservation andstormwater management

18 pointsSiting and land use

RequiredMeet basic requirements in energyefficiency, air tightness, ventilation,erosion control, recycling, use oftropical hardwoods.


Must score at least 60 points in addition to meeting basic requirements.

Point Distribution within Wisconsin GBP (Cont.)

578 pointsTOTAL 33 pointsEfficient use of space 33 pointsBuilder operations

30 pointsWaste reduction, recycling anddisposal

23 pointsPlumbing and water conservation 56 pointsIndoor air quality


Must score at least 60 points in addition to meeting basic requirements.

Materials Selection Criteria - Wisconsin GBP

4No vinyl

5Use of engineered wood products 4Use of highly durable materials

2Use of domestically produced mat.

4Use of regionally produced mat’ls

7Reduce materials consumption 16Use of non-wood materials 20FSC certified or equivalent 28Reused or recycled const. mat’ls

Points*CategoryCategory

ß Major emphasis on bldg mat. characteristics.ß Major emphasis on recycling/reuse.ß Certification by FSC or equivalent specified.ß Certification not required for any material other than wood.ß No provision for systematic assessment of materials using LCA/LCI.

Wisconsin Green Builder Program Summarized

BREEAM (Building ResearchEstablishment EnvironmentalAssessment Method), UK has

recently set a new standard forbuilding materials evaluation.

Comparison of Green Building Programs

3rd PartySFI, ATFS,CSA, FSC

FSCOnlyGreen Building

Program

XX--

X

XXWisconsin GreenbuiltXBuilt Green Colorado

California Green Builder----Austin Green BuildingXXSeattle (King County)XGreen GlobesXXLEED

Certification Requirement


Wisconsin GreenbuiltBuilt Green ColoradoCalifornia Green Builder

--Austin Green BuildingSeattle (King County)Green GlobesLEED

CertificationRequired for

Materials other thanWood

Green BuildingProgram


X

Use of VinylDiscouraged

XXWisconsin GreenbuiltXBuilt Green ColoradoXCalifornia Green Builder--Austin Green BuildingXSeattle (King County)

Green GlobesXLEED

Use of BambooFlooring

RewardedGreen BuildingProgram


XXX--X

X

PrescriptiveSystem REPreferableMaterials

Wisconsin GreenbuiltBuilt Green ColoradoCalifornia Green BuilderAustin Green BuildingSeattle (King County)

XGreen GlobesLEED

Bldg MaterialsAssessment Based

on LCA/LCIGreen BuildingProgram

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