Retail–NC-v2009 IEQc4: Low-emitting materials

  • Trades Training - v2009

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  • USGBC

    Excerpted from LEED 2009 for Retail: New Construction and Major Renovations

    IEQ Credit 4: Low-emitting materials

    Intent

    To reduce the quantity of indoor air contaminants that are odorous, irritating and/or harmful to the comfort and well-being of installers and occupants.

    Requirements

    OPTION 1. Adhesives and Sealants (1 point)

    All adhesives and sealants used on the interior of the building (i.e., inside the weatherproofing system and applied onsite) must comply with the following requirements as applicable to the project scope1:

    • Adhesives, Sealants and Sealant Primers must comply with South Coast Air Quality Management District (SCAQMDSouth Coast Air Quality Management District (SCAQMD) is the air pollution control agency that regulates stationary air pollution sources in parts of southern California, including Orange County and most of Los Angeles, San Bernardino, and Riverside County.) Rule #1168. Volatile organic compound (VOCA volatile organic compound (VOC) is a carbon compound that vaporizes (becomes a gas) at normal room temperatures. VOCs contribute to air pollution directly and through atmospheric photochemical reactions (excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbides and carbonates, and ammonium carbonate) to produce secondary air pollutants, principally ozone and peroxyacetyl nitrate.) limits listed in the table below correspond to an effective date of July 1, 2005, and rule amendment date of January 7, 2005.
    • Architectural Applications VOC Limit [g/L less water] Specialty Applications VOC Limit [g/L less water]
      Indoor carpet adhesives 50 PVC welding 510
      Carpet pad adhesives 50 CPVC welding 490
      Wood flooring adhesives 100 ABS welding 325
      Rubber floor adhesives 60 Plastic cement welding 250
      Subfloor adhesives 50 Adhesive primer for plastic 550
      Ceramic tile adhesives 65 Contact adhesive 80
      VCT and asphalt adhesives 50 Special purpose contact adhesive 250
      Drywall and panel adhesives 50 Structural wood member adhesive 140
      Cove base adhesives 50 Sheet applied rubber lining operations 850
      Multipurpose construction adhesives 70 Top and trim adhesive 250
      Structural glazing adhesives 100
      Substrate Specific Applications VOC Limit [g/L less water] Sealants VOC Limit [g/L less water]
      Metal to metal 30 Architectural 250
      Plastic foams 50 Nonmembrane roof 300
      Porous material (except wood) 50 Roadway 250
      Wood 30 Single-ply roof membrane 450
      Fiberglass 80 Other 420
      Sealant Primers VOC Limit [g/L less water]
      Architectural nonporous 250
      Architectural porous 775
      Other 750



    • Aerosol Adhesives must comply with Green Seal Standard for Commercial Adhesives GS-36 requirements in effect on October 19, 2000.

      Aerosol Adhesives VOC weight (g/L minus water)
      General purpose mist spray 65% VOCs by weight
      General purpose web spray 55% VOCs by weight
      Special purpose aerosol adhesives (all types) 70% VOCs by weight



    • OPTION 2. Paints and Coatings (1 point)

      Paints and coatings used on the interior of the building (i.e., weatherproofing system and applied onsite) must comply with the following criteria as applicable to the project scope2:

      • Architectural paints, coatings, and primers applied to interior walls and ceilings must not exceed the volatile organic compound (VOC) content limits established in Green Seal Standard GS-11, Paints, 1st Edition, May 20, 1993.
      • Anticorrosive and antirust paints applied to interior ferrous metal substrates must not exceed the VOC content limit of 250 g/L established in Green Seal Standard GCA General Contractor (GC) manages, coordinates, and oversees building construction; may perform some construction tasks; and is responsible for hiring and managing subcontractors. -03, Anti-Corrosive Paints, 2nd Edition, January 7, 1997.
      • Clear wood finishes, floor coatings, stains, and shellacs applied to interior elements must not exceed the VOC content limits established in South Coast Air Quality Management District (SCAQMD) Rule 1113, Architectural Coatings, rules in effect on January 1, 2004.
      OPTION 3. Flooring (1 point)

      PATH 1

      All flooring must comply with the following as applicable to the project scope:

      • All carpet installed in the building interior must meet one of the following requirements:

        • Meets the testing and product requirements of the Carpet and Rug Institute’s Green Label Plus3 program.
        • Maximum VOC concentrations are less than or equal to those specified in the California Department of Health Services Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers, including 2004 Addenda, using the office scenario as defined in Table 7.5 within the practice. The additional VOC concentration limits listed in Section 9.1a must also be met.
        • Maximum VOC concentrations meet the California requirements specified above based on the following:
          • California Department of Public Health (CDPH) Standard Method V1.1-2010 using test results obtained at the 14 day time point
          • Projects outside the U.S. may use the German AgBB/DIBt testing method and all testing methods based on AgBB/DIBt method (GUT, EMICODE, Blue Angel) using test results obtained at the 3 day or 7 day or 14 day time point. For caprolactam, if test results obtained at the 3 day or 7 day time point is used, the emission concentration must be less than ½ of the concentration limit specified above because the emission may not have peaked at the measured time points.

            If a European testing method (AgBB/DIBt GUT, EMICODE, Blue Angel) had used parameters for calculating test results different from those specified in the referenced California method, then the European test results for carpets or floorings need to be converted into California air concentrations by multiplication with 0.7.

      • All carpet cushion installed in the building interior must meet the requirements of the Carpet and Rug Institute Green Label program.
      • All carpet adhesive must meet the requirements of IEQ Credit 4: Low-Emitting Materials, Option A, which lists a volatile organic compound (VOC) limit of 50 g/L.
      • All hard surface flooring installed in the building interior must meet one of the following requirements:
        • Meet the requirements of the FloorScore standard (current as of the date of this rating system, or more stringent version) as shown with testing by an independent third-party.
        • Demonstrate maximum VOC concentrations less than or equal to those specified in the California Department of Health Services Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers, including 2004 Addenda, using the office scenario as defined in Table 7.5 within the practice.
        • Maximum VOC concentrations meet the California requirements specified above based on the following:
          • California Department of Public Health (CDPH) Standard Method V1.1-2010 using test results obtained at the 14 day time point
          • Projects outside the U.S. may use the German AgBB/DIBt testing method and all testing methods based on AgBB/DIBt method (GUT, EMICODE, Blue Angel) using test results obtained at the 3 day or 7 day or 14 day time point. For caprolactam, if test results obtained at the 3 day or 7 day time point is used, the emission concentration must be less than ½ of the concentration limit specified above because the emission may not have peaked at the measured time points.

            If a European testing method (AgBB/DIBt GUT, EMICODE, Blue Angel) had used parameters for calculating test results different from those specified in the referenced California method, then the European test results for carpets or floorings need to be converted into California air concentrations by multiplication with 0.7.

      • Concrete, wood, bamboo, and cork floor finishes such as sealer, stain, and finish must meet the requirements of South Coast Air Quality Management District (SCAQMD) Rule 1113, Architectural Coatings, rules in effect on January 1, 2004.
      • Mineral-based finish flooring products such as tile, masonry, terrazzo, and cut stone without integral organic-based coatings and sealants and unfinished/untreated solid wood flooring qualify for credit without any IAQIndoor air quality: The quality and attributes of indoor air affecting the health and comfort building occupants. IAQ encompasses available fresh air, contaminant levels, acoustics and noise levels, lighting quality, and other factors. testing requirements. However, associated site-applied adhesives, grouts, finishes and sealersSealers are coatings applied to either block materials from penetrating into or leaching out of a substrate, to prevent subsequent coatings from being absorbed by the substrate, or to prevent harm to subsequent coatings by materials in the substrate. must be compliant for a mineral-based or unfinished/untreated solid wood flooring system to qualify for credit.
      • Tile setting adhesives and grout must meet South Coast Air Quality Management District (SCAQMD) Rule 1168. VOC limits correspond to an effective date of July 1, 2005, and rule amendment date of January 7, 2005.
      • For carpet adhesive, concrete, wood, bamboo and cork floor finishes, and tile setting adhesives, compliance can be demonstrated with test results of:
        • Total volatiles fraction, based on one of the following, provided that water and exempt compounds are subtracted from total volatiles test results and the mass VOC content is calculated consistent with SCAQMD Rule 1113 and Rule 1168:

          • ASTMVoluntary standards development organization which creates source technical standards for materials, products, systems, and services D2369
          • EPA method 24
          • ISO 11890 part 1
        • Total volatile organic compounds fraction, based on one of the following, provided that all VOCs with a boiling point up to 280°C (536°F) are included, and exempt compounds are subtracted from total volatiles test results and the mass VOC content is calculated consistent with SCAQMD Rule 1113 and Rule 1168.
          • ASTM D6886
          • ISO 11890 part 2

    OR

    PATH 2

    All flooring products must meet the testing and product requirements of the California Department of Health Services Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers, including 2004 Addenda.

    Mineral-based finish flooring products such as tile, masonry, terrazzo, and cut stone without integral organic based coatings and sealants and unfinished/untreated solid wood flooring qualify for credit without any IAQ testing requirements. However, associated site-applied adhesives, grouts, finishes and sealers must be compliant for a mineral-based or unfinished/untreated solid wood flooring system to qualify for credit.

    OPTION 4. Composite Wood and Agrifiber Products (1 point)

    Composite wood and agrifiber products used on the interior of the building (i.e., inside the weatherproofing system) must contain no added urea-formaldehyde1. Formaldehyde is a naturally occurring VOC found in small amounts in animals and plants but is carcinogenic and an irritant to most people when present in high concentrations, causing headaches, dizziness, mental impairment, and other symptoms. When present in the air at levels above 0.1 ppm, it can cause watery eyes; burning sensations in the eyes, nose, and throat; nausea; coughing; chest tightness; wheezing; skin rashes; and asthmatic and allergic reactions. 2. A known carcinogen with no known safe exposure level. Formaldehyde occurs naturally, but appears in unnaturally high concentra­tions in many buildings because it is an ingredient in binders used in many building materials and furnishings. resins. Laminating adhesives used to fabricate onsite and shop-applied composite wood and agrifiber assemblies must not contain added urea-formaldehyde resins. Please note that built-in casework and built-in millwork items must be included in the base buildingThe base building includes elements such as the structure, envelope, and building-level mechanical systems, such as central HVAC, and materials and products installed in the project (e.g., flooring, casework, wall coverings). calculations.

    Products covered by IEQ Credit 4, Option E—Furniture shall be excluded from these requirements

    OPTION 5. Furniture and Furnishings (1 point)

    For manufactured and custom furniture, components of furniture and their assembly must meet the requirements of IEQ Credit 4, Option A: Adhesives and Sealants, IEQ Credit 4 Option B—Paints and Coatings, and IEQ Credit 4, Option D: Composite Wood and Agrifiber Products.

    Please note that built-in casework and built-in millwork items are to be considered part of the base building.

    AND

    All systems furnitureSystems furniture includes panel-based workstations comprising modular interconnecting panels, hang-on components, and drawer and filing components or a free-standing grouping of furniture items designed to work in concert.4 and seating5 introduced into the project space that have been manufactured, refurbished,

    or refinished within 1 year prior6 to occupancy must meet 1 of the requirements below.

    PATH 1

    Greenguard Indoor Air Quality Certified

    OR

    PATH 2

    Calculated indoor air concentrations that are less than or equal to those established in Table 1 for furniture systems and seating determined by a procedure based on the EPA Environmental Technology Verification (ETV) Large Chamber Test Protocol for Measuring Emissions of VOCs and Aldehydes (September 1999) testing protocol conducted in an independent air quality testing laboratory.

    Chemical Contaminant Emission Limits Systems Furniture Emission Limits Seating
    TVOCThe sum or total of all volatile organic compounds (VOCs) released from a product or measured in a space under certain defined conditions. 0.5 mg/m3 0.25 mg/m3
    Formaldehyde 50 parts per billion 25 parts per billion
    Total Aldehydes 100 parts per billion 50 parts per billion
    4 – Phenylcyclohexene (4-PCH) 0.0065 mg/m3 0.00325 mg/m3



    OR

    PATH 3

    Calculated indoor air concentrations that are less than or equal to those established in Table 1 for furniture systems and seating determined by a procedure based on ANSI/BIFMA M7.1–2007 and ANSI/BIFMA X7.1–2007 testing protocol conducted in an independent third-party air quality testing laboratory.

    The requirement in ANSI/BIFMA X7.1–2007, Section 5, is waived for LEED purposes. Section 5 requires that laboratories used to perform the emissions testing and/or provide analytical results shall be independently accredited to ISO/IEC 17025, “General requirements for the competence of testing and calibration laboratories.”

    OPTION 6. Ceiling and Wall Systems (1 point)

    All gypsum board, insulation, acoustical ceiling systems, and wall coverings installed in the building interior shall meet the testing and product requirements of the California Department of Health Services Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers, including 2004 Addenda.

4 Comments

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stefano pieretti architecrt Nativa
Nov 28 2016
Guest

self-levelling compound

Does anyone know which categories of low emitting materials is the self-leveling compound ?

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Carly Ruggieri Senior Sustainability Consultant Steven Winter Associates, Inc.
Dec 06 2013
Guest
1214 Thumbs Up

Do Requirements Apply?

I'm trying to determine if certain materials will apply for the purposes of the EQc4.6 credit for low-emitting ceiling and wall systems. My project will be installing custom-shaped glass-fiber reinforced gypsum. I couldn't find any information on any equivalent materials that are Greenguard certified, and I'm not certain that it even applies to this credit. Also, are wall fabrics included? Thanks for any feedback!

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Tristan Roberts LEED AP BD+C, Executive Editor – LEEDuser, BuildingGreen, Inc. Dec 06 2013 LEEDuser Moderator

Carly, the credit language specifies that "All gypsum board, insulation, acoustical ceiling systems, and wall coverings installed in the building interior" are subject to the credit scope.

That's a definite yes on wall fabrics. For your custom-shaped gypsum product, hard to day without knowing more about its function, but it seems likely.

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Carly Ruggieri Senior Sustainability Consultant, Steven Winter Associates, Inc. Dec 06 2013 Guest 1214 Thumbs Up

Thanks Tristan. After looking more into the plans, the shaped GFRG will make up a curved cornace, fascia and and vaulted ceiling, Since they specifically call out acoustical ceiling systems in the credit requirements, I think this product might be off the hook. It will be a while before a construction review takes place for this particular job but I'll plan to follow up on this post if we do end up pursuing the credit.

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May 26 2017
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