Entry Type ID Date Applicable Rating System Primary Credit Inquiry (LIs) Ruling (LIs) Related Addenda/LIs Related Resources Campus Applicable Internationally Applicable Country Applicability Reference Guide (Addenda) Page (Addenda) Location (Addenda) Description of Change (Addenda) "Reference Guide Correction" "100000417" "2010-01-08" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "483" "Table 1" "For ""Nonflat Coatings"" in row nineteen, remove the value ""150"" from the ""Current Limit"" column and insert in the ""1/1/03"" column" "Reference Guide Correction" "100000414" "2010-04-14" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "482" "3. Summary of Referenced Standards, Green Seal Standard GS-11" "Replace the hyperlink ""http://www.greenseal.org/certification/standards/paints_and_coatings.pdf"" with ""http://www.greenseal.org/certification/standards/paints_GS_11.pdf"" " "Reference Guide Correction" "100000415" "2010-04-14" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "482" "3. Summary of Referenced Standards, Green Seal Standard GC-03" "Replace the sentence and table below the resource with the text ""The GC-03 VOC limits applicable for this credit are summarized in Table 1. IEQc4.2 Applicable VOC Limits.""" "Reference Guide Correction" "100000416" "2010-04-14" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "482" "3. Summary of Referenced Standards, Green Seal Standard GS-11" "At the end of the paragraph, insert the text ""The GS-11 VOC limits applicable for this credit are summarized in Table 1. IEQc4.2 Applicable VOC Limits. """ "Reference Guide Correction" "100000418" "2010-04-14" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "483" "South Coast Air Quality Management District (SCAQMD) Rule 1113" "At the end of the paragraph, insert the text ""The SCAQMD Rule 1113 VOC limits applicable for this credit are summarized in Table 1. IEQc4.2 Applicable VOC Limits. """ "Reference Guide Correction" "100000422" "2010-01-08" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "486" "Second term description" "Insert the term ""Sealer"" in alphabetical order with the accompanying text ""Sealers 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.""" "Rating System Correction, Reference Guide Correction" "100000425" "2010-04-14" "New Construction, Schools - New Construction, Core and Shell" "10267" "None" "Green Building Design and Construction, 2009 edition" " NC Rating System: 70, Schools Rating System: 69, CS Rating System: 69, Reference Guide: 488" "OPTION 2" "At the end of the paragraph, add the following text:\n\nMineral-based finish flooring products such as tile, masonry, terrazzo, and\ncut stone without integral organic-based coatings and sealants and\nunfinished/untreated solid wood flooring qualify for credit without any IAQ\ntesting requirements. However, associated site-applied adhesives, grouts,\nfinishes and sealers must be compliant for a mineral-based or\nunfinished/untreated solid wood flooring system to qualify for credit." "Reference Guide Correction" "100000419" "2010-04-14" "New Construction, Core and Shell, Schools - New Construction" "None" "low-emitting materials - paints and coatings RG addenda 04/14/2010" "Green Building Design and Construction, 2009 edition" "483" "Table 1" "Replace table as indicated in the supplemental document." "Reference Guide Correction" "100000421" "2010-01-08" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "484" "Table 2" "In the second column of the second row, remove the text ""27 parts per billion"" and insert ""120""" "Reference Guide Correction" "100000420" "2010-01-08" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "484" "Table 2" "On the top row of the table in the second column, remove ""Limit VOCs (g/L)"" and replace with ""Limit VOCs (g/L) minus water""" "Reference Guide Correction" "100000410" "2009-12-02" "New Construction, Core and Shell, Schools - New Construction" "None" "low-emitting materials - adhesives and sealants addenda 12/02/2009" "Green Building Design and Construction, 2009 edition" "476" "Schools box" "At the end of box, insert new text and table as indicated in the supplemental document." "Reference Guide Correction" "100000413" "2009-11-02" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "482" "3. Summary of Referenced Standards, Green Seal Standard GS-11" "In the fourth line of the paragraph, remove the text ""...Tables 1 and 2 summarize Green Seal Standard GS-11""" "Reference Guide Correction" "100000705" "2010-11-03" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "484" "Table 2" "Remove Table 2. Standard VOC Limits" "Reference Guide Correction" "100000707" "2010-11-03" "New Construction, Core and Shell, Schools - New Construction" "None" "low-emitting materials - paints and coatings addenda 11/03/2010" "Green Building Design and Construction, 2009 edition" "483" "Table 1" "Replace table" "Reference Guide Correction" "100000762" "2011-02-02" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "477" "9. Exemplary Performance" "Replace text with the following:\n\nNC & Schools\nThis credit is not eligible for exemplary performance under the Innovation and Design section.\n\nCS\nProjects that require and enforce tenants to meet the requirements in IEQ Credit 4 (4.1, 4.2, 4.3, and 4.4) throughout the tenant space are eligible for exemplary performance under the Innovation in Design section." "Reference Guide Correction" "100000763" "2011-02-02" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "484" "9. Exemplary Performance" "Replace text with the following:\n\nNC & Schools\nThis credit is not eligible for exemplary performance under the Innovation and Design section.\n\nCS\nProjects that require and enforce tenants to meet the requirements in IEQ Credit 4 (4.1, 4.2, 4.3, and 4.4) throughout the tenant space are eligible for exemplary performance under the Innovation in Design section." "Reference Guide Correction" "100000764" "2011-02-02" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "492" "9. Exemplary Performance" "Replace text with the following:\n\nNC & Schools\nThis credit is not eligible for exemplary performance under the Innovation and Design section.\n\nCS\nProjects that require and enforce tenants to meet the requirements in IEQ Credit 4 (4.1, 4.2, 4.3, and 4.4) throughout the tenant space are eligible for exemplary performance under the Innovation in Design section." "Reference Guide Correction" "100000765" "2011-02-02" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "497" "9. Exemplary Performance" "Replace text with the following:\n\nNC & Schools\nThis credit is not eligible for exemplary performance under the Innovation and Design section.\n\nCS\nProjects that require and enforce tenants to meet the requirements in IEQ Credit 4 (4.1, 4.2, 4.3, and 4.4) throughout the tenant space are eligible for exemplary performance under the Innovation in Design section." "Reference Guide Correction" "100000701" "2010-11-03" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "471" "Requirements" "Add footnote number 2 at the end of the first bullet, ""This table excludes adhesives and sealants integral to the roof waterproofing system or that are not building related.""." "Reference Guide Correction" "100000702" "2010-11-03" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "474" "Table 1" "In the ""Sealants"" section, remove the items ""Nonmembrane roof, 300"" and ""Single-ply roof membrane, 450""" "Reference Guide Correction" "100000706" "2010-11-03" "New Construction, Schools - New Construction, Core and Shell" "None" "None" "Green Building Design and Construction, 2009 edition" "482" "3. Summary of Referenced Standards, Green Seal Standard GS-11" "At the end of the paragraph, insert the text ""The GS-11 VOC limits applicable for this credit are summarized in Table 1. IEQc4.2 Applicable VOC Limits. """ "Rating System Correction, Reference Guide Correction" "100000894" "2011-05-09" "Schools - New Construction" "None" "None" "Green Building Design and Construction, 2009 edition " "BD+C RG: 481, Schools RS: 69" "CREDIT 4.2. Paints and Coatings (1 point)" "Replace, ""installed in the building interior"" with ""used on the interior of the building (i.e., inside of the weatherproofing system and applied on-site)""" "Rating System Correction, Reference Guide Correction" "100000941" "2011-05-09" "Schools - New Construction" "None" "None" "Green Building Design and Construction, 2009 edition " "BD+C RG: 501, Schools RS: 70" "CREDIT 4.5. Furniture and Furnishings (1 point)" "Delete, ""OR OPTION 3""" "Rating System Correction, Reference Guide Correction" "100000938" "2011-05-09" "Schools - New Construction" "None" "None" "Green Building Design and Construction, 2009 edition " "BD+C RG: 495, Schools RS: 69" "CREDIT 4.4. Composite Wood and Agrifiber Products (1 point)" "Add the following to the end of the section, ""Wood and agrifiber products shall be treated as walls within the classroom scenario when determining compliance.""" "Rating System Correction, Reference Guide Correction" "100000939" "2011-05-09" "Schools - New Construction" "None" "None" "Green Building Design and Construction, 2009 edition " "BD+C RG: 501, Schools RS: 69" "CREDIT 4.5. Furniture and Furnishings (1 point)" "Replace Option 1 with the following:\nClassroom furniture and seating must meet the emissions requirements of the GREENGUARD Children and Schools standards, with testing conducted in an independent third-party air quality testing laboratory." "Rating System Correction, Reference Guide Correction" "100000940" "2011-05-09" "Schools - New Construction" "None" "None" "Green Building Design and Construction, 2009 edition " "BD+C RG: 501, Schools RS: 70" "CREDIT 4.5. Furniture and Furnishings (1 point)" "In Option 2, delete the following, ""Calculated indoor air concentrations that are less than or equal to those listed 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."" " "Rating System Correction, Reference Guide Correction" "100000942" "2011-05-09" "Schools - New Construction" "None" "None" "Green Building Design and Construction, 2009 edition " "BD+C RG: 501, Schools RS: 70" "CREDIT 4.5. Furniture and Furnishings (1 point)" "Revise the language in the paragraph beginning with ""Calculated indoor air concentrations..."" to read, ""Calculated indoor air concentrations shall be less than or equal to those established in Table 1 for classroom furniture and seating when determined by a procedure based on ANSI/BIFMA M7.1-2007and ANSI/BIFMA X7.1-2007 testing protocol, when modeled using the classroom scenario 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, with testing conducted in an independent third-party air quality testing laboratory." "Global ACP" "100001307" "2012-07-06" "Schools - New Construction" "None" "None" "X" "Green Building Design and Construction, 2009 edition $ Green Building Design and Construction, 2009 Edition, updated June 2010" "Schools RS: 86" "Credit 4.1 " "Delete the Alternative Compliance Path for Projects Outside the U.S." "Global ACP" "100001308" "2012-07-06" "Schools - New Construction" "None" "None" "X" "Green Building Design and Construction, 2009 edition $ Green Building Design and Construction, 2009 Edition, updated June 2010" "Schools RS: 86" "Credit 4.2" "Delete the Alternative Compliance Path for Projects Outside the U.S." "Global ACP" "100001309" "2012-07-06" "Schools - New Construction" "None" "None" "X" "Green Building Design and Construction, 2009 edition $ Green Building Design and Construction, 2009 Edition, updated June 2010" "Schools RS: 87" "Credit 4.3" "Delete the Alternative Compliance Path for Projects Outside the U.S." "Global ACP" "100001310" "2012-07-06" "Schools - New Construction" "None" "None" "X" "Green Building Design and Construction, 2009 edition $ Green Building Design and Construction, 2009 Edition, updated June 2010" "Schools RS: 87" "Credit 4.4" "Delete the Alternative Compliance Path for Projects Outside the U.S." "Global ACP" "100001311" "2012-07-06" "Schools - New Construction" "None" "None" "X" "Green Building Design and Construction, 2009 edition $ Green Building Design and Construction, 2009 Edition, updated June 2010" "Schools RS: 87" "Credit 4.5" "Delete the Alternative Compliance Path for Projects Outside the U.S." "Global ACP" "100001312" "2012-07-06" "Schools - New Construction" "None" "None" "X" "Green Building Design and Construction, 2009 edition $ Green Building Design and Construction, 2009 Edition, updated June 2010" "Schools RS: 87" "Credit 4.6" "Delete the Alternative Compliance Path for Projects Outside the U.S." "LEED Interpretation" "10251" "2012-10-01" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction, Retail - New Construction, Retail - Commercial Interiors, Healthcare" "Do Thermally Fused Melamine (TFM) laminates fall under the requirements for ""on-site and shop-applied composite wood and agrifiber assemblies?"" \nBecause Thermally Fused Melamine (TFM) is technically a paper product and not a ""plastic"" product, we would appreciate additional clarification whether TFM paper products applied in the manufacturing process fall within the scope of this credit." "No, Thermally Fused Melamine (TFM) laminates do not need to be included in this credit. Laminates are not covered in the scope of this credit. Internationally Applicable." "None" "None" "LEED Interpretation" "10267" "2013-01-01" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction, Retail - New Construction, Retail - Commercial Interiors, Healthcare" "According to footnote 1 on the IEQc4.3 Form, ""Mineral-based finish flooring products such as tile, masonry, terrazzo, and cut stone without any integral organic-based coatings and sealants and unfinished/untreated solid wood flooring qualify for credit without any IAQ testing requirements."" Is it necessary to list them as a material on the form since there is no way to indicate that it is exempt from testing?" "The project team is asking whether mineral-based finish flooring products (without any integral organic-based coatings and sealants) and unfinished/untreated solid wood flooring need to be included on the LEED IEQc4.3 (Low-Emitting Materials - Flooring Systems) Credit Form. Yes, the project team should mark the form to indicate an Alternative Compliance Path. The required narrative for the Alternative Compliance Path must include a statement that the project is applying the April 14, 2010 addenda, as well as the manufacturer and specific product description of the product claiming the exemption. Manufacturer documentation for each product claiming an exemption is NOT required. Applicable Internationally." "100000423, 100000425, 100000142, 100000144" "None" "X" "LEED Interpretation" "1767" "2007-04-20" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction" "USGBC has previously stated that if a product is inside the exterior moisture protection, it is a controlled product (it must comply with the credit requirement). Our question concerns the adhesive used to adhere to the concrete the ""stick pins"" that hold up the insulation to the underside of the concrete slab that forms the garage ceiling. Technically, this area is inside the exterior moisture protection envelope, but garage is not a regularly occupied space, and the concrete slab provides an impenetrable barrier between the stick pins/adhesive and the occupied spaces above. The garage is below and adjacent to occupied space. At the adjacent condition, the garage is separated from the occupied space either by solid wall, intervening utility spaces or a vestibule. The garage has variable active ventilation by two exhaust shafts with fans that are controlled via CO2 detectors. These shafts are located in the southwest and northwest corners of the garage. Distribution fans are also located in opposite corners, etc to move air towards the exhaust fans. Fresh air is brought into the garage via numerous openings along the full length of the east wall and a centrally located fresh air shaft. The adhesive used for this purpose has a VOC content of 420 gm/L, and we have not been able to find an acceptable substitute with a VOC content within the maximum 250 g/L assigned to the ""All Others"" category of Table 1 of the LEED-NC version 2.1 Reference Guide. (No other category of Table 1 applies.) Given that the product will be used in a non-conditioned, non-regularly occupied space; that there is no acceptable alternative for this application; the presence of the impenetrable concrete stab, and the long duration between application and occupancy of this multi-story project, we request that this application/product be exempted from the requirements of EQ 4.1." "The project is inquiring if an adhesive used within the exterior moisture protection, but above an impenetrable concrete deck in an unconditioned, non-regularly occupied space, is exempt from EQc4.1. The project may exclude the adhesive in question since 1) the garage is open to the outdoors at all times and thus is not technically an interior space and 2) the occupied areas of the building are separated from the garage by solid, impenetrable walls. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "2399" "2009-03-10" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell" "Our project is an office building with multiple stores where most of the occupied areas are open spaces. We intend to apply wood-based products in the technical floor (access floor). In accordance with LEED-NC V2.2, wood-based products inside the waterproofing system should not contain any urea-formaldehyde-based resins. This requirement is reasonably supported by the assumption that only the materials inside waterproofing system can have emissions for the interior environment. However if one material is applied inside the waterproofing system but is enclosed inside a waterproofing material, can this be considered out of the scope for this credit? The access floor squares will be made out of a wood particleboard core encapsulated inside an aluminum box and supported on metal supports, to allow the passage of all the cables and wires. This box will then be covered with the surfacing material. The function of the wood-based board is to give the necessary stiffness and bending strength to the whole assembly and, therefore, it will be totally enclosed inside this waterproofing box in order to avoid moisture penetration, what could interfere with the material performance. Therefore, we believe that this wood-based panel application guarantees that no eventual VOC emission can be allowed and, therefore, we\'d like to ask permission to apply this solution in the above mentioned project. In addition, please also note that this board is independently certified as E1 class, which is the class with the lowest level of formaldehyde emissions according with the European Standard EN 13986." "As noted in CIR ruling dated 8/13/2008, all products within the weatherproofing system must not contain any added urea-formaldehyde, regardless of whether the product is encapsulation within a waterproofing system. Please also refer to LEED-NC v2.1 CIR rulings dated 10/18/2004, 6/17/2004 and 5/7/2005 for additional guidance on this. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "5141" "2008-08-13" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell" "This project consists of (2) wings of (3) story wood framed buildings. The wood beams (LVL\'s) do have urea formaldehyde in the glue resins. The wood structure was able to ""off-gas"" for a period of time until building was weather-tight. Is credit still achievable due to the ""off-gassing""? The framing started July 24, 2007 and completed November 15, 2007. The framing was open to the elements for the course of 60-90 days depending on the enclosure period. We believe this is adequate time for the off-gassing cycle. Equally, we have conducted Air Quality testing during construction and have not had excessive VOC content within the building. We are in our final stages of IAQ testing and preliminary reports are coming back successful. Please advise." "In order to meet the credit requirements, all products within the weatherproofing system must not contain any added urea-formaldehyde. Applicable Internationally." "None" "None" "X" "LEED Interpretation" "5202" "2009-04-21" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell" "We are consulting for a 460,000 sqft school in Manhattan, New York City. We would like to obtain the EQc4.4 credit by using composite wood products that are free from added urea-formaldehyde resins. A small fraction of the composite wood on the project consists of veneered paneling that, because if its location in the building, must have a fire-retardant substrate. We are aware of two UF-free fire-retardant panels on the market. One of these products is not approved for use in New York City. The other substrate, which is approved by the New York City Fire Department, has an intumescent fire-retardant coating. Unfortunately, experience has proved that adhesives without added urea formaldehyde do not reliably adhere to this intumescent surface. The manufacturer does not provide a guarantee of attachment if other adhesives are used. While market transformation is occurring, the pace is sometimes not rapid enough to affect such specialty products. We are blocked from obtaining the credit for UF-free composite materials by a small fraction of material that cannot be made UF-free. Even if a compliant substrate were available somewhere, procurement issues may impede sole-sourcing it. With a limited budget, if this credit is not obtainable, the school may have to pursue another credit that it considers less desirable. We request that USGBC consider allowing a small fraction - we suggest 5% - of the composite wood on the project to be exempted from the credit requirement. Not requiring 100% compliance is consistent with other MR and IEQ credits. With the current requirement, even a minute amount of non-compliant material removes the incentive to meet the intent of the credit." "Per CIR ruling dated 8/13/2008 and 3/10/2009, all composite wood products that are contained within the exterior moisture protection barrier of a building must comply with the requirements of this credit. Please also refer to LEED-NC v2.1 CIR rulings dated 10/18/2004, 6/17/2004 and 5/7/2005 for additional guidance on this. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "5211" "2009-04-21" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell" "Architectural paints and coatings list VOC limits of 50 g/L for flats, and 150 g/L for non-flats - however, these limits specify application at walls and ceilings. Layout lines and markings applied to resilient athletic flooring often include graphics and lettering; the South Coast Air Quality Management District (SCAQMD) Rule 1113 defines Graphic Arts Coatings as ""coatings formulated for hand-application by artists using brush or roller techniques to indoor and outdoor signs (excluding structural components) and murals, including lettering enamels, poster colors, copy blockers, and bulleting enamels."" Graphic Arts Coatings carries a VOC limit of 500g/L. As indicated above, paints applied to resilient athletic floors do not meet the VOC limits for paint as specified in the credit requirements, however, they are compliant with VOC limits of Graphic Arts Coatings as specified by SCAQMD Rule 1113. Please clarify if roller or brush-applied paint for layout lines and markings would be classified as Graphic Arts Coatings, under SCAQMD rule 1113. If not, please advise how to otherwise achieve the credit requirements. Additionally, graphics applied to textured resilient athletic flooring require air-brushing layout lines and markings; the South Coast Air Quality Management District (SCAQMD) Rule 1113 defines Aerosol Coating Products as ""pressurized coating product containing pigments or resins that dispenses product ingredients by means of a propellant, and is packaged in a disposable can for hand-held application, or for use in specialized equipment for ground marking and traffic marking applications."" VOC limits for Aerosol Coating Products are excluded from Green Seal Standard GS-11, and the South Coast Air Quality Management District rule 1113. The USGBC also ruled on 02/10/2009 that Aerosol Coating Products are excluded from EQc4.2. As paint for floor graphics is loaded into a compressor, and applied using air as the propellant, please clarify if this would be deemed an Aerosol Coating Product, and therefore excluded from this credit. If not, please advise how to otherwise achieve the credit requirements." "The project team is seeking clarification on the applicable standards for paint used for layout lines and markings on athletic flooring. For any roller or brush-applied paint, the proposed reference standard, Graphic Arts Coating for SCAQMD rule 1113 appears to be the appropriate standard for this application. Similarly, when the paint is applied using a compressor and propellant, it would meet the definition of an aerosol coating product, per the same rule. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "5241" "2009-06-26" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell, Existing Buildings" "How does a project team classify duct sealants for application under EQc4.1?" "Project teams may classify duct sealants under ""Other"", as listed in the SCAQMD VOC Limits table. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "758" "2004-04-19" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction" "HVAC duct work is generally installed once the building has walls and a roof, but before windows are installed. It is our project team\'s understanding that the building would not be considered to have indoor air at this time, but since this inquiry deals with the indoor air distribution system, we want to be certain that we will comply with the credit requirements. In climates with freezing temperatures over the winter months, water based duct sealants (which comply with VOC limits) are not acceptable for use due to the fact that they will crack when frozen. Oil-based sealants (which do not comply with VOC limits) are required in freezing weather until the building is enclosed and thermally controlled. It is not clear to this project team whether or not SSc4.1 would apply to sealing the duct work. When, during the construction process, does SSc4.1 start to apply, and does SSc4.1 apply to duct sealants?" "Duct sealants must be included under this credit. The VOC limit requirements of EQc4.1 for adhesives and sealants apply to all phases of construction. The LEED-NC v2.1 Reference Guide states on page 276 that this credit applies to products and installation processes that have the ability to adversely affect indoor air quality on site: and those that are exposed in interior spaces accessible by occupants (meaning all space within the weatherproofing layer of the building envelope). The VOCs from this product will offgas long enough to effect the building\'s indoor air quality. In addition, installers are immediately exposed to the product\'s emissions. Applicable Internationally. " "None" "None" "X"