Don’t allow the use of products that merely claim to be “low VOC.” Everyone specifying and purchasing products must actually find the products’ VOC content in grams per liter (g/L), which is usually found on the product’s technical data sheet or material safety data sheet, and compare that number with VOC limits listed for different uses determined by the South Coast Air Quality Management District (SCAQMD) Rule #1113 and Green Seal GS-11 and GS-03.
Only 20% of product cut sheets selected at random need to be uploaded to LEED Online to document this credit although it is best to keep all product cut sheets on file in case the credit is audited.
Yes. If you have just one non-compliant product, then you can balance it out with just one really good, low-VOC product, as long as all your other products meet the requirement. For example, if you have two gallons of non-compliant paint that is 100 g/L over its required threshold, then you can balance it out with another product you’re using. You would have to be using two gallons that are 100g/L under the required threshold, or four gallons that are 50 g/L under, or 20 gallons that are 10 g/L under, etc.
GBCI has issued a clarification that the actual barrier does not need to comply with this credit. Any applied products that are 'touched by the indoor air' would need to be considered for IEQc4.2, but if they fall outside of this they can be excluded.
Check out the Resources tab for the Green Seal Standard and SCAQMD Rules for more information. These documents can be helpful in determining where and how your product should be categorized to determine corresponding VOC thresholds.
Graphic Arts (Sign) Coating is found in SCAQMD 1113, Table 1 - VOC Limits, with 500 g/l as the current limit.
Projects should comply with the editions in the reference guide or applicable LEED addenda issued before the project's registration date.
Handheld aerosol spray paints are not covered by Green Seal GS-11 or SCAQMD Rule 1113, the relevant standards under this credit. A CIRCredit Interpretation Ruling. Used by design team members experiencing difficulties in the application of a LEED prerequisite or credit to a project. Typically, difficulties arise when specific issues are not directly addressed by LEED information/guide under LEED-NC v2.2 was issued that excluded spray paints from this credit, and there have been no rulings reversing this for LEED 2009 projects, although there is not officially a ruling one way or another that applies to LEED 2009. See LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. #2486 2/10/2009.
As stated in the credit language, architectural paints and coatings applied to interior walls and ceilings are subject to GS-11.
If a project registered after the 4/14/10 addendum, then primers must use the 50 g/L and 150 g/L VOC limits for flat and non-flat paints, respectively. The only exception would be when it can be demonstrated, based on the purpose of the primer and supporting manufacturer data, that the product meets the definition of specialty primers per SCAQMD Rule 1113.
Like the similar credit, IEQc4.1: Low-Emitting Materials: Adhesives and Sealants, it shouldn’t cost you anything extra to earn this credit—it will just take some work. Your first priority should be to specify only paints and coatings that comply with the credit’s VOC limits, and enforce those specifications on the jobsite. Research low-VOC paints and coatings before construction begins and provide lists of acceptable materials to contractors to help ensure that the right products are used.
Major manufacturers offer paints and coatings that are just as durable and perform just as well as their higher-VOC counterparts. Performance of low-VOC products has sometimes been an issue in the past, but the market has largely moved beyond this point.
Low-VOC acrylic paint is readily available. While it may be more difficult, it is not impossible to find low-VOC oil-based and high-gloss paints. Darker shades of paints also tend to have higher VOC levels. Rust proofing coatings also tend to have higher VOC content, but several name brand providers have low-VOC alternatives.
Low-VOC paint like this 0-VOC Acrylic from Sherwin-Williams does not have to sacrifice performance or cost. Photo – Sherwin-Williams
Making sure that VOC limits are observed demands proactive communication between the designer, contractor, and all subcontractors who do work inside the building. Subcontractors have to be educated about the requirements, and their contracts should require that they document their compliance.
Unlike some LEED credits where only a certain percentage of the materials have to comply, this credit is all-or-nothing—all paints and coatings must comply. If a non-compliant paint or coating gets used by mistake, or if you need to bend the VOC limits to meet the requirements of a warranty or fire code, you can still earn the credit following the “VOC budget process.” You’ll simply have to do some calculations to show that your extra use of VOCsA volatile organic compounds (VOCs) 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. was offset by very low use of VOCs elsewhere. You have to meet the budget for paints and coatings separately from adhesives and sealants (for IEQc4.1), though—you’re not allowed to create a combined VOC budget covering multiple IEQc4 credits.
Earning this credit is a key part of a construction indoor-air-quality management plan, and will help you earn another LEED point via IEQc3.1: Construction Indoor Air Quality Management Plan—During Construction.
Earning this credit can also help teams pass air quality tests needed to earn IEQc3.2: Construction Indoor Air Quality Management Plan—Before Occupancy.
Using low-VOC paints and coatings is not only beneficial to occupants, but can improve air quality and the health of construction workers who are constantly exposed to construction pollution.
First check the allowable VOC levels for each product type you are using – see the summary of VOC limits in the Low-Emitting Material Limits document (see Documentation Toolkit) and then make sure the products specified do not exceed those limits.
Select paint colors and sheen levels.
Many "zero-VOC" paints contain colorants with as much as 150 g/L of VOCs. Natura from Benjamin Moore uses zero-VOC colorants. Photo – Benjamin MooreIt’s easier to find low-VOC paints if you choose lighter paint colors. Darker colors tend to use more pigment and binders, where VOCs are concentrated. When compiling VOC numbers for paints, make sure that the numbers you get include pigment, not just the base paint.
Light colors also make spaces brighter, reducing electric lighting needs.
Major manufacturers offer paints and coatings that are just as durable and perform just as well as their higher-VOC counterparts. Poor performance of low-VOC paints and coatings has been an issue in the past, but is no longer a problem for any but the most demanding applications. Interior wall and ceiling paints (in flat and semi-gloss sheens) are readily available. Some specialty coatings such as rust-proofing finishes can be more challenging.
Make sure low-emitting requirements have been integrated in construction specifications. Products must be at or below the recommended VOC limits. VOC levels can be found on a product’s MSDS or technical data sheet and are measured in grams per liter (g/L).
Guidance on incorporating LEED specifications into construction documents, along with samples, is available from MasterSpec and from the Whole Building Design Guide (see Resources).
Identifying VOC requirements directly on the drawings as well as in the specs is a good way to remind the contractor and subcontractors of the requirements, but be careful to make sure the information is consistent between the drawings and the specs.
It is best to require subcontractors to supply all LEED-required VOC information on the products they purchase at the time they are submitting products for approval. This way contractors do not wait until the end of construction to supply information, and you have the opportunity to review products for LEED compliance before products are purchased.
Specify compliant products by brand name whenever possible. It is best to distribute a list of acceptable products and the VOC limit chart from the LEED rating system at the contractor and subcontractor orientation meetings.
Low-emitting products can be part of a more comprehensive IAQ management plan, as required for IEQc3.1: Construction Indoor Air Quality Plan—During Construction. A comprehensive IAQ plan covers all adhesives, sealants, paint, coatings, composite materials, and overall construction best practices protecting air quality.
Achieving this credit can also help achieve IEQc3.2: Construction IAQ Management Plan—Before Occupancy, if your project pursues the air-testing option for this credit. Using low-VOC products improves your odds of passing the air quality tests.
Only paints and coatings installed within the weather barrier need to comply with this credit. If paints and coatings are part of the weather barrier, err on the side of caution and use low VOC paints and coatings.
Products assembled off-site or factory-finished are exempt from this credit, because it is assumed that VOCs have off gassed before arriving at the site.
Using low-emitting paints and coatings should be a no-added-cost measure.
Some contractors might charge a premium for implementing and documenting this credit but, in general, costs should be minor or nonexistent as more firms start incorporating these as standard best practices.
Hiring construction teams with LEED experience is helpful, as is reviewing LEED requirements and responsibilities with the contractor during the bidding process. Construction teams without LEED experience can be successful with this credit, but will require more training and a closer eye on quality control to make sure compliant materials are used and that items are documented correctly.
Implementing an IAQ plan and use of low-emitting materials demands accountability. It is best if subcontractors are contractually required to implement their parts of the IAQ plan.
The general contractor (GC) should be oriented to all LEED-related issues, including IAQ management, low-emitting materials, environmental material tracking tools, construction waste management, and so on. A list of acceptable products for each use type, and the list of VOC limits, should be provided to aid subcontractors in product selection.
The GC should hold orientation meetings with the subcontractors to review the LEED responsibilities related specifically to their trades. This exercise helps to build trust and is crucial for obtaining buy-in from all participants in the process.
Coordination and communication among the GC, subcontractors and design team early in the process can minimize scheduling delays and pushback from subcontractors.
Give the GC and subcontractors the following tools to help them track materials data for all MR and IEQ credits. (See the Documentation Toolkit for access.)
Research compliant, low-emitting products before construction begins. If product decisions are made after construction begins, with less time to carefully review data sheets, there is a much greater risk of using a non-compliant product.
When researching low-emitting products, double-check that the manufacturer’s information does not use misleading language. A common example is a product cut sheet that uses the term “low-emitting” without providing a specific VOC g/L value. Many cut sheets give a maximum value of, for example, VOC < 100g/L. That’s fine as long as 100 g/L meets the criteria for that product—just enter 100 g/L VOC amount for LEED documentation.
It is common for an MSDS to list the chemical contents of a product without giving an overall VOC g/L number. You’ll need to contact the manufacturer or check cut sheets to get the total VOC number. (See the Documentation Toolkit for a sample cut sheet.)
Obtain VOC levels, in writing, from the manufacturer, for the actual products used on the project—don’t rely on VOC quotes given over the phone.
The VOC value on an MSDS can be unreliable when several different products are listed on one sheet. Get clarification from the manufacturer on the actual VOC content of the product you are using.
The GC should be aware of any warranty issues that may exist if alternative paints or coatings are used. For example, a flooring company’s warranty may require a specific coating that does not meet the VOC requirements. To keep the warranty valid, use the coating specified and use the VOC budget method to show a weighted average VOC compliance (see below).
If noncompliant materials are used onsite accidentally, or due to a warranty or other issue, you can use the VOC budget method. This method compares the total amount of VOCs (in grams per liter) used in the design case to the total amount of VOCs that would have been used if every product exactly met LEED VOC allowances. The calculation must be determined for adhesives and sealants separately from paints and coatings. For example, it won’t necessarily help your case to use low-VOC paints but also some high-VOC sealants. (See the compliance example below for paints and coatings.)
Using the VOC budget method is usually successful, but can be time-consuming to document.
Throughout construction, the GC should collect material safety data sheets (MSDS) from subcontractors and completed VOC tracking forms for all products used onsite associated with this credit.
Assign someone to be responsible for inputting the subcontractors’ tracking forms into the master spreadsheet. A LEED consultant or an administrative assistant in the GC’s office may be the best choice for this role.
Review subcontractor product suggestions ahead of time to avoid the purchase of inappropriate materials and eliminate the need for costly change orders.
Streamline documentation and research by keeping a master spreadsheet of all the items being tracked for each material across MR and IEQ credits. For example, you may need to ask the millworker for regional information for MRc5, certified wood information for MRc7, and information about coatings installed on-site for IEQc4.1. If one spreadsheet collects all the data, it can streamline your documentation, associated research, and help with quality control. (See the Materials Calculator in the Documentation Toolkit.)
A master spreadsheet helps ease information collection for subcontractors, giving them a road map of exactly what types of information to collect for each product.
The GC functions as the overall quality assurance provider for this credit. Responsibilities include conducting weekly reviews of subcontractor product safety data sheets and tracking forms, as well as spot checks in dumpsters to determine which products are actually being used.
Post signs at the construction site that reminds subcontractors to follow LEED requirements for low-VOC products. (See Documentation Toolkit for sample signs.)
Schedule the application of paints and coatings so that off-gassing does not contaminate other absorptive materials. This is required if projects are attempting IEQc3.1: Construction Indoor Air Quality Plan—During Construction. For example, do not store or install acoustic ceiling tile before flooring and wall paints are put down, because ceiling tiles will absorb the off-gassing of paint and contaminate the air over a longer time period.
It is usually a good idea to do a “mini air flush” (if your project is not attempting IEQc3.2) before occupancy to help remove any lingering VOCs from the construction process. This can be as simple as putting industrial sized fans in the window and pumping in fresh air overnight or running the HVAC exhaust on high for a few days. (See IEQc3.2: Construction Indoor Air Quality Plan—Before Occupancy if the team wants to do a full flush-out for an additional LEED point.)
Transfer all the data collected in the master material tracking spreadsheet to the LEED Online form and upload the product cut sheets.
Keep a list of compliant, low-emitting paints and coatings used on the project so that O&M staff can use these products for future renovations.
Excerpted from LEED 2009 for New Construction and Major Renovations
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.
Paints and coatings used on the interior of the building (i.e., inside of the weatherproofing system and applied onsite) must comply with the following criteria as applicable to the project scope1:
You may use the LEED v4 version of this credit on v2009 projects. For more information check out this article.
Specify low-VOC paints and coatings in construction documents. Ensure that VOC limits are clearly stated in each section of the specifications where paints and coatings are addressed. Track the VOC content of all interior paints and coatings during construction.
Green Seal is an independent, nonprofit organization that strives to achieve a healthier and cleaner environment by identifying and promoting products and services that cause less toxic pollution and waste, conserve resources and habitats, and minimize global warming and ozone depletion. GS–36 sets VOC limits for commercial adhesives.
SCAQMD is the air pollution control agency for all of Orange County and the urban portions of Los Angeles, Riverside and San Bernardino counties, the smoggiest region of the U.S. The organization is committed to protecting the health of residents, while remaining sensitive to businesses.
Support on incorporating LEED requirements into specifications.
Green Seal is an independent, nonprofit organization that strives to achieve a healthier and cleaner environment by identifying and promoting products and services that cause less toxic pollution and waste, conserve resources and habitats, and minimize global warming and ozone depletion. This document outlines criteria for anti-corrosive paints and can be helpful in defining application type for products.
SCAQMD is the air pollution control agency for all of Orange County and the urban portions of Los Angeles, Riverside and San Bernardino counties, the smoggiest region of the U.S. The organization is committed to protecting the health of residents, while remaining sensitive to businesses. This document outlines criteria for clear wood finishes, floor coatings, stains, primers, 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. and shellacs, and can be helpful in defining application type for products.
Guidance and sample language on incorporating VOC limits into Specifications.
Teams can use this tool to track all materials across various MR and IEQ credits. It helps teams develop a roadmap of what information needs to be tracked for different products. It can also be used early on to create the baseline budget and ensure the products that are being used will apply to the various credit thresholds.
This is a materials tracking form that helps subcontractors record the environmental values of products they purchase. This can be distributed to each trade subcontractor and submitted to the GC for filing.
Use a letter like this sample to orient the contractor to their responsibilities for all MR and IEQ credits. This letter is an introduction that can be customized for the credits your project is pursuing.
This is a VOC tracking sheet that helps subcontractors record the low-emitting qualities of the products they purchase and can be distributed to each trade subcontractor and submitted to the GC for filing. Use it specifically for earning low-emitting materials credits, but in conjunction with documentation for MR credits.
Products with VOC content not meeting credit requirements for VOC levels can inadvertently get used on the jobsite. A sign like this sample helps remind subcontractors and construction workers of their responsibilities.
Look to product cut sheets for information on the VOC content of paints and coatings. The example here clearly displays information needed for documentation, as well as an instance where more information is needed from the manufacturer.
You can use the VOC budget method to earn this credit by offsetting materials that go over the VOC limit with materials that are under it. The spreadsheet shown here, along with tips in the Getting It Done tab, demonstrates how to perform the budget method. This spreadsheet was completed by Mary Kay, LEED AP BD+C, a LEEDuser reader, and was approved by GBCI on a LEED-NC v2.2 project.
The following links take you to the public, informational versions of the dynamic LEED Online forms for each NC-2009 IEQ credit. You'll need to fill out the live versions of these forms on LEED Online for each credit you hope to earn.
Version 4 forms (newest):
Version 3 forms:
These links are posted by LEEDuser with USGBC's permission. USGBC has certain usage restrictions for these forms; for more information, visit LEED Online and click "Sample Forms Download."
Documentation for this credit is part of the Construction Phase submittal.
I am confused how to identify one product that is going to be used on a concrete slab inside our project building. This is some kind of sealer used to protect concrete from water, reinforce it and keep the dust away from its surface.
I would specify this product as Waterproofing concrete/ masonry sealer, but as it has not only waterproofing qualities I'm not completely sure.
Can anybody offer some opinion on this point?
Is there any VOC requirement for thinners?
(2) Containers for all coatings subject to the requirements of this rule shall carry a statement of the manufacturer's recommendation regarding thinning of the coating. This requirement shall not apply to the thinning of architectural coatings with water. The recommendation shall specify that the coating is to be employed without thinning or diluting under normal environmental and application conditions, unless any thinning recommended on the label for normal environmental and application conditions does not cause a coating to exceed its applicable standard.
(3) Each container of any coating subject to this rule shall display the maximum VOC content of the coating, as supplied, and after any thinning as recommended by the manufacturer. The VOC content of low-solids coatings shall be displayed as grams of VOC per liter of material (excluding any colorant added to the tint bases) and the VOC content of any other coating shall be displayed as grams of VOC per liter of coating (less water and less exempt compounds, and excluding any colorant added to tint bases). VOC content displayed may be calculated using product formulation data, or may be determined using the test method in subdivision (e). VOC content calculated from formulation data shall be adjusted by the manufacturer to account for cure volatiles (if any) and maximum VOC content within production batches.
This LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. states that touch-up paint consists of small unanticipated quantities that can't be controlled by specifications, and therefore is exempt from the credit. However, this LI has only been vetted for LEED v2.0 projects. Can I assume that touch-up paint must be included in LEED v2009 projects??
Read LI#5581 closely to see that the Ruling only excludes touch-up paints in aerosol cans. At the time of the Ruling (2002), LEEDv2.0 only addressed the flat & non-flat and anti-corrosive paints governed by Green Seal GS-11 & GC-03. IEQc4.2 did not apply to the other types of coatings that LEEDv2.2 & LEED-2009 have regulated using SCAQMD-1113.
In current versions of LEED, SCAQMD-1113 specifically excludes paints aerosol in handheld cans, so IEQc4.2 also excludes such products (LI#2486).
As for other types of on-site touch-up, credit language is clear: “Paints and coatings used on the interior of the building (i.e., inside of the weatherproofing system and applied onsite) must comply.” Therefore, for on-site, non-aerosol touch-up of shop-applied coatings, specifications should require compliance with the specified VOC-limits.
See LI#5979 for advice on how to coordinate touch-up painting to avoid fouling IEQc3 preoccupancy 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. tests.
Can you please update the FAQ section of LEED-NC v2009, IEQc4.2.
The information on primers is out of date per interpretation/addenda #100001805. See note/responses from Jon Clifford under question "Anti-Rust vs flat primer." This addenda clarifies that all primers 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. undercoaters will now be held to 200 g/l.
My project includes an industrial floor which will be subject to high abrasion, scrubbing etc, therefore I expect the 250 g/l limit to apply.
However I am looking for clarification that this 250 g/l limit has not been updated to a more stringent limit. Table 1 on P483 of the reference guide also provides 100 g/l limit in 7/1/06 - which promotes doubt on the applicable level. When I look for updates the floor coating is always listed as 100 g/l with no mention of industrial related limits.
Can someone provide clarity on whether projects are to follow the 2004 date on this matter, or is it necessary to apply the 100 g/l limit.
I have the same question as Francis. Is there any information concerning this point? Which limit shall be applied to industrial maintenance coating for LEED NC-2009 - 250 g/l or 100 g/l?
Thanks in advance.
LEED 2009 sets the criteria as per the VOC content limits established in South Coast Air Quality Management District (SCAQMD) Rule 1113, Architectural Coatings, rules in effect on January 1, 2004; therefore 250 g/l. I am not aware of an addendum to dispute this.
However, when you move up to LEED V4, (SCAQMD) Rule 1113, effective June 3, 2011.
Thank you for your reply!
I am working on an industrial manufacturing building where a piece of the process equipment will be painted onsite as part of the installation requirements, but as it is part of the equipment and not part of the building, I was wondering if this coating should comply with the VOC limits, since the VOC content is 450 and I don´t know where to classify this coating.
Thank you in advance.
Even though industrial process equipment typically is furnished by the owner or tenant and not part of the normal construction scope, I believe that IEQc4.2 VOC limits still apply. Since the painting occurs onsite and inside the building during the construction period, the paint must meet SCAQMD or CARBThe California Air Resources Board, part of the state government, is charged with maintaining clean air. This agency is unique at the state level: California was the only state that had such an agency before the passage of the federal Clean Air Act, and was allowed to keep it. VOC limits.
Furthermore, SCAQMD-1113-2004 & CARB-2007-SCM each say that they cover coatings for “fixed stationary tools” that are accessory to a building. I think that this includes equipment such as you describe.
Classify the paint by comparing its characteristics to SCAQMD & CARB definitions. If it contains metal flakes, the paint may be a Metallic Pigmented Coating with a VOC limit of 450g/L. Otherwise, if it is anticorrosive, it may be an Industrial Maintenance or Anti-Corrosive paint limited to 250g/L VOC. If the paint exceeds the prescribed VOC limit, a budget calculation may become necessary.
In any case, if the equipment installers do the painting, make sure that they are bound by the project’s 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. Management Plan and that they use precautions to avoid fouling IEQc3 pre-occupancy IAQ tests.
I am documenting the paints and coatings credit and I have one non-compliant paint that I need to offset. I want to do it with a single offset and I know that is allowable. I have gathered the volumes used for both the non-compliant and the offset paint and and input it on the LEED credit form. The form is showing 'no' on the VOC compliance budget and the credit does not show as being achieved. Any ideas of what I am doing incorrectly or how to work around the issue?
Apparently, if the VOC Budget is used, the LEEDonline form wants a positive entry on every line in the “Volume Used” column. This appears to be an error in the form. Technically, the form should only require volumes for any noncompliant products and for just enough compliant products to offset the noncompliant ones.
Try this fix:
. . 1. On the line corresponding to your non-compliant paint, enter the actual volume used.
. . 2. Do the same on the line corresponding to your offset paint.
. . 3. For each remaining compliant product, enter 0.01L (likely far less than the actual volume used).
This should change “VOC Budget Compliance” to “Yes.”
Finally, check the “Special Circumstances” box. Explain the difficulty with the form, describe your offset calculation, and cite Part 3 of LI#1822, which first outlined this procedure. You may also want to upload a PDF of your own spreadsheet of the calculation isolating just the coatings used in the abbreviated budget. I would also upload documentation of the quantities (such as letters from the contractor or applicator).
You might want to shoot an inquiry to USGBC first to confirm whether this approach is acceptable. An inquiry might alert them to the form error and prompt a fix.
Jon - thanks for the assistance. I have done as you suggested and it now shows compliance for both the budget and the credit. I appreciate the quick response and help!
We are a wood floor contractor who often does site finished wood floors on commercial LEED projects, mostly in Texas.
The water based urethane we use states the following on the MSDS1. Material safety data sheets (MSDS) are detailed, written instructions documenting a method to achieve uniformity of performance.
2. A report that manufacturers of most products are required to make available to installers and purchasers, informing them of product information on chemicals, chemical compounds, and chemical mixtures, the existence of potentially hazardous ingredients, and providing instructions for the safe handling, storage, and disposal of products
VOLATILE ORGANIC COMPOUNDS (VOC Theoretical)
2.91 lb/gal 349 g/l Less Water and Federally Exempt Solvents
1.21 lb/gal 145 g/l Emitted VOC
1) Can you confirm which VOC amount above we are supposed to report?
2) Can you also confirm that we are correct in placing our clear urethane topcoat in the category of "clear wood finish" giving it a current LEED 2009 VOC limit of 350 g/l.?
If this is the case and we are using a stain that is not compliant because it exceeds the 250 g/l limit by usually less than 100 g/l, then is it realistic to use the shortcut method and have the urethane finish offset the stain in a VOC Budget calculation?
We have been told by a GC that its not that simple and we do not want to be the company causing them to have to run full blown VOC budgets.
LEED-2009 bases VOC limits for wood finishes either on SCAQMD-1113-2004 or on CARBThe California Air Resources Board, part of the state government, is charged with maintaining clean air. This agency is unique at the state level: California was the only state that had such an agency before the passage of the federal Clean Air Act, and was allowed to keep it.-2007-SCM. These standards calculate VOC content “less water and exempt compounds.”
The answer to your second question depends on which of these two standards your project is using and on the characteristics of the urethane product.
If your product is opaque or semi-transparent and “formulated to change the color but not conceal the grain pattern or texture” of the substrate, it is a “Stain” with a 250g/L VOC limit under both SCAQMD & CARB.
By contrast, "Clear Wood Finishes" are formulated with natural or synthetic resins. SCAQMD defines three types: Varnishes, Sanding 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., and Lacquers (either clear or pigmented). For Lacquer (which dries without a chemical reaction), the SCAQMD VOC limit is 550g/L, but for the other two types (which dry by chemical reaction), the limit is 350g/L. However, if your project uses CARB (instead of SCAQMD), the VOC limit for all three types is only 275g/L.
Which of these types matches your product? If you can’t tell from reading the label, contact the manufacturer.
Finally, be aware that LEEDv4 may be coming your way on future projects. In v4, many VOC limits are lower still and additional requirements may apply.
Thank you Jon,
Were are on the same page about the categories that our products fall in and the allowable limits for each.
When we use a stain over 250 VOC and want to suggest to the GC that they should run a VOC budget how do we best articulate that? We would like to point them to a very specific rule or possibly provide an example of the Shortcut method that we precalculate for them using another one of our products as the balancer..
Our goal is to make it easy for them not give them a job to do.
If a VOC budget gets triggered by just a handful of non-compliant coatings used in relatively small quantities, it is acceptable to use an abbreviated version of the budget that does not require quantifying every single coating used on the project. See the third question in LI#1822 and its response:
http://www.usgbc.org/leed-interpretations?keys=1822. This is easiest when all products used in the calculation come from one subcontractor (in this case, you).
However, using a VOC budget may not put you completely in the clear. If your project is pursing IEQc4.3, Low-Emitting Flooring, all wood floor finishes must comply with CARBThe California Air Resources Board, part of the state government, is charged with maintaining clean air. This agency is unique at the state level: California was the only state that had such an agency before the passage of the federal Clean Air Act, and was allowed to keep it. or SCAQMD VOC limits, but I am not sure that IEQc4.3 allows VOC budgeting. (See http://www.leeduser.com/comment/redirect/56470.)
The BEST approach is to use only products that comply with ALL VOC limits and performance requirements specified by the project’s design team. I only use the budget approach if there are NO alternatives or when a questionable product already has slipped on-site. If this is the case, work not just with the GC, but also with the project’s LEED Administrator, for a solution that works with project goals.
Finally, really take a hard look at your 349g/L urethane product. Does the presence of urethane resins make it a varnish instead of a stain? Consult the manufacturer.
Does anyone have any insight/thoughts/comments/experience about categorizing an anti-rust coating as compared to categorizing the product as a flat coating/primer? If the MSDS1. Material safety data sheets (MSDS) are detailed, written instructions documenting a method to achieve uniformity of performance.
2. A report that manufacturers of most products are required to make available to installers and purchasers, informing them of product information on chemicals, chemical compounds, and chemical mixtures, the existence of potentially hazardous ingredients, and providing instructions for the safe handling, storage, and disposal of products does not specifically out the product as an anti-rust/corrosive product (but it is being used as one) are we required to categorize it as a flat coating with a max VOC of 50 g/L as compared to an anti-rust at 250 g/L?
You have the right idea…almost.
The Green Seal GC-03-1997 definition of “Anti-Corrosive Paint” is extraordinarily vague, so judging which products qualify is tricky. Instead, I use CARB’s criteria for “Rust Preventative Coating,” which require labeling “For Metal Substrates Only” with application only “direct-to-metal” or to “rusty, previously coated surfaces.” CARB also excludes coatings that require primer and those intended for non-metallic substrates.
However, I would not expect MSDS1. Material safety data sheets (MSDS) are detailed, written instructions documenting a method to achieve uniformity of performance.
2. A report that manufacturers of most products are required to make available to installers and purchasers, informing them of product information on chemicals, chemical compounds, and chemical mixtures, the existence of potentially hazardous ingredients, and providing instructions for the safe handling, storage, and disposal of products to include such labeling. MSDS provide safe handling and emergency instructions. For substrate and application requirements and for gloss classifications, I would look to manufacturers’ technical data sheets.
Finally, if I classify a coating as a primer, the VOC limit is now 200g/L, according to an October 2013 Addendum:
http://www.usgbc.org/resources/ieqc42-table-1-applicable-voc-limits & http://www.usgbc.org/leed-interpretations?keys=100001805.
Has anyone considered reporting the use of aerosol "line saver"? This is the stuff sprayed over chalk lines during construction to preserve construction reference lines for layout. It's applied within the building (on the slab, or plywood subfloor), but doesn't seem to fit well into any SCAQMD categories. Does it even need to be reported? Thank you in advance.
Lyle – You have it right!
SCAQMD-1113 does not govern aerosol coatings dispensed from handheld cans, so the spray line saver doesn’t fall under IEQc4.2. The product is not an adhesive, so you don’t report it either under IEQc4.1.
This product is more like hairspray or spray fixative.
Take care though. Aerosols can be high in VOC and hard to control. Make sure that your IEQc3 Indoor Air Quality Management Plan addresses the use & handling of such products to avoid fouling preoccupancy 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. test.
For a project located outside US, should the VOC content of a paint or coating not tested as per SCAQMD or Green Seal or CARBThe California Air Resources Board, part of the state government, is charged with maintaining clean air. This agency is unique at the state level: California was the only state that had such an agency before the passage of the federal Clean Air Act, and was allowed to keep it. Standards be included in the VOC budget method?
Any product used that has not been tested by a recognized protocol, should not be used at all.
In order to complete a VOC budget, you must "account for" all products in a category used on a project
Is that the case even if the manufacturer claims there is no VOC content at all in his product? Said otherwise, if a product does not contain any VOC source (zero solvent, zero glycol,...) does it need to be tested anyway to confirm the manufacturers claim?
For IEQc4.2 in NCv2009, the LEED-Online form requires entering each product’s actual VOC content in grams per liter (g/L).
Each of the referenced standards (Green Seal GS13-1993 & GC03-1997, SCAQMD-1113-2004, & CARBThe California Air Resources Board, part of the state government, is charged with maintaining clean air. This agency is unique at the state level: California was the only state that had such an agency before the passage of the federal Clean Air Act, and was allowed to keep it.-2007) prescribes the same means of calculating VOC content, all determined according to EPA Method 24.
Therefore, manufacturers must report VOC content accordingly. See the comment entitled “Verify Your Information” under the “Bird’s eye view” tab at the top of this page.
[LEEDv4 is somewhat less rigid about methodology than LEEDv2009 is. Note that USGBC now allows LEEDv4 Credit Substitutions for several LEEDv2009 credits. For more, see the most recent Global ACP Supplements and http://www.usgbc.org/articles/use-v4-credits-your-v2009-project.]
We are semi-new to the LEED program and want to be sure that we are following all of the necessary guidelines to achieve the overall credits for the project. This is a LEED Gold project intended for a flagship in NYC.
We have received some instruction that IEQ Credits 4.1-4.5 applies to our millwork fixtures, even our shop applied adhesives, substrates and finishes. The way I have interpreted these credits is that this applies to on-site application only, not adhesives, stains, substrates or finishes applied in our shop.
The statement "..intended to be field applied to stationary structures or their appurtenances.." in Rule 1113 of Architectural Coatings by SCAQMD seems to follow with my assumption.
Could someone please verify that we are proceeding correctly?
You have asked about Credits IEQc4.1 through IEQc4.5.
Under LEED BD+C-2009, Credit IEQc4.5 only exists under LEED for Schools, LEED-Retail, & LEED-Healthcare, but IEQc4.5 requirements differ depending on which Rating System the Project is using. For example, if the Project is pursuing LEED-Retail, IEQc4.5 requires that manufactured and custom furniture, components of furniture, and their assembly meet the VOC and 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. restrictions required under IEQc4.1, IEQc4.2, and IEQc4.4. Check with the Project’s LEED Administrator to verify which Rating System they are using.
Under other LEED-BD+C systems, the texts of Credits IEQc4.1 & IEQc4.2 state that the credit requirements apply only to products “APPLIED ON-SITE.” Therefore, (unless the project is pursuing LEED-Retail) VOC restrictions do NOT apply to adhesives, sealantsA sealant has adhesive properties and is formulated primarily to fill, seal, or waterproof gaps or joints between 2 surfaces. Sealants include sealant primers and caulks. (SCAQMD Rule 1168. )Sealants are used on wood, fabric, paper, corrugated paperboard, plastic foam and other materials with tiny openings, often microscopic, that may absorb or discharge gas or fluid., paints, and coatings applied during off-site pre-fabrication.
By contrast, the IEQc4.4 ban on added urea-formaldehyde resins applies to composite woods, agrifiber productsAgrifiber products are made from agricultural fiber. Examples include particleboard, medium-density fiberboard (MDF), plywood, oriented-strand board (OSB), wheatboard, and strawboard., and laminating adhesives used in assemblies fabricated both on-site and in-the-shop.
Which one from the table that suits for Synthetic Gloss Enamel paint, that use for painting metals?
I would say Industrial Maintenance Coatings - Max. VOC 250
The paint only qualifies as an Industrial Maintenance Coating if it is formulated to resist extreme environmental conditions such as immersion in water, wastewater, or chemicals; chronic exposure to moisture condensation; exposure to corrosive, caustic or acidic agents or fumes; repeated exposure to extreme temperatures; repeated heavy abrasion, mechanical wear, scrubbing, or industrial cleaners; or exterior exposure of metal structures.
If the paint is formulated for application to steel and simply to resist rust under normal conditions, it is an anti-corrosive/anti-rust paint, also with a VOC limit of 250g/L.
However, some Synthetic Gloss Enamels are formulated as general-purpose paints not just for steel, but for wood, masonry, or other substrates. If this is the case, the Gloss Enamel is a Non-Flat Paint with a VOC limit of only 150g/L.
Thank you very much for the answer :)
Good afternoon all,
I have a question about LEED certification.
We produce high quality water basied paints in Kazakhstan. Our products are certificated by Kazakh Certification Center. And i need to get LEED certificate.
Can you help me with getting it? Should we sent you our products for testing? How much will it cost to get that certificate. And how much time will it take us to get it?
Ask the question here:
We are new to the Leed program and wanting to make sure that we are following all of the guidelines, we have received some instruction however I'm trying to get confirmation that shop applied finishes do not need to meet the site applied guidelines? granted we understand the need for our shop and air quality. We are wanting to make sure that we are following all the guidelines for our first leed platinum project. can someone direct me to the "Rule" ( i read rule 1113 under architectural coatings on the usgbc site) and i'm confident that we are moving forward as we should. i'm looking for a knowledgeable individual that can confirm what we researched. Leed V2009
Your assumption is correct. The guideline states: REQUIREMENTS: NC & CS: "Paints and coatings used on the interior of the building (i.e., inboard side of the weatherproofing system and applied on-site)"
I concur with John-David regarding how this applies under LEED 2009 (and previous versions of LEED). I will add that LEED v4 approaches this credit differently, and the requirements will vary depending on which category your product falls into (flooring, composite woodComposite wood consists of wood or plant particles or fibers bonded by a synthetic resin or binder. Examples include particleboard, medium-density fiberboard (MDF), plywood, oriented-strand board (OSB), wheatboard, and strawboard., ceiling/wall, or furniture). Notably, both flooring and ceilings/walls need to meet the "General Emissions Evaluation" in addition to requirements for site-applied "wet" products (furniture has other requirements too), so if the product is considered for LEED v4 down the road, it may need to consider VOC EMISSIONS in addition to VOC content for site applied products.
Jeremy—Just be aware of one issue that sometimes trips folks up…if a shop-applied finish needs to be touched-up after the item has been installed on-site, the touch-up finish needs to comply with SCAQMD-1113 VOC limits. Sometimes that means using a different, but compatible, product for touch-up. If that is not possible, you might choose just to start off using a compliant product in the shop. That way, if you need to make on-site repairs, you can use the same product.
One more thought: shop applied adhesives (like plastic laminate or veneer adhesives) should be reported and compliant also. The IEQc4.4 form states: "All laminating adhesives used to fabricate on-site and shop-applied composite woodComposite wood consists of wood or plant particles or fibers bonded by a synthetic resin or binder. Examples include particleboard, medium-density fiberboard (MDF), plywood, oriented-strand board (OSB), wheatboard, and strawboard. and agrifiber assemblies must also be included." I have seen this comment from a LEED NC 2009 reviewer recently.
The project is a 2 storied garment factory located in Bangladesh where they use Industrial Enamel alkyd based paints which has a VOC of 438 g/L. The vendor claims that the Industrial Enamel paints specially alkyd based VOC standard is 450 g/L. Kindly clarify us the VOC limit for acrylic based industrial enamel paints?
Thanks in advance.
Sengathir—For its paint VOC limits, LEEDv3 cites Green Seals Standards GS-11 from 1993 and GC-03 from 1997. For opaque paints used on walls and ceilings, the VOC limits are 50g/L for flats and 150 for non-flats. For anti-corrosive & anti-rust paints, the VOC limit is 250g/L. For other types of coatings, LEEDv3 cites South Coast Air Quality Management District (SCAQMD) Rule 1113 from 2004 (http://www.usgbc.org/resources/south-coast-air-quality-management-distri...), but even then, the VOC limit for Industrial Maintenance (IM) Coatings is only 250g/L.
Your vendor appears mistaken.
Sengathir: Unless it is an extremely specialized coating, it would likely be an Industrial Maintenance coating at 250 g/L as Jon states. The referenced version of Rule 1113 is out of date, but it was balloted and remains the baseline for conformance. Full text is at http://www.usgbc.org/sites/default/files/SCAQMD%20Rule%201113%207-9-04.pdf
One of the primary credit interpretations incorporates an updated set of coating categories and limits that is consistent with systems such as the IgCC, ASHRAE 189.1 and LEEDv4. The Credit Library on the USGBC website includes interpretations and referenced standards. Here is the text of the specific interpretation:
ID#10295 made on 10/01/2013
Prerequisite/Credit: EQc4.2 - Low-emitting materials - paints and coatings
Rating System: LEED BD+C: New Construction, LEED ID+C: Commercial Interiors, LEED BD+C: Core and Shell, LEED BD+C: Retail, LEED ID+C: Retail
Can the VOC limits of the California Air Resources Board (CARBThe California Air Resources Board, part of the state government, is charged with maintaining clean air. This agency is unique at the state level: California was the only state that had such an agency before the passage of the federal Clean Air Act, and was allowed to keep it.) 2007, Suggested Control Measure (SCM) for Architectural Coatings be used to meet the credit requirements for paints and coatings used on the interior of the building as an alternative to the VOC limits in Green Seal GS-11 1993, Green Seal GC 03 2nd Edition 1997, and SCAQMD Rule 1113 2004?
Yes, paints and coatings that comply with the California Air Resources Board (CARB) 2007, Suggested Control Measure (SCM) for Architectural Coatings meet the requirements of this credit
Thanks Dwayne. I haven’t used CARBThe California Air Resources Board, part of the state government, is charged with maintaining clean air. This agency is unique at the state level: California was the only state that had such an agency before the passage of the federal Clean Air Act, and was allowed to keep it.-SCM-2007 on a project yet, so I often forget about it. Still, the CARB VOC limits and category definitions are similar:
. Flat CoatingsCoatings that register a gloss of less than 15 on an 85-degree meter or less than 5 on a 60-degree meter. . . . . . . . . . . . . . . . . 50g/L
. Nonflat Coatings. . . . . . . . . . . . . 100g/L
. Nonflat – High Gloss Coatings. . . 150g/L
. Rust Preventative Coatings . . . . . 250g/L
. Industrial Maintenance Coatings . 250g/L
None of the SCAQMD or CARB VOC limits above 438g/L are for coating categories that seem to resemble the product that Sengathir describes. The vendor may be citing a standard that is not recognized under LEED-2009.
Incidentally, your SCAQMD-1113 link connects to a version identical to the one that I posted.
I have a polishing powder that is intended to be used for polishing marble surface. Knowing that this powder is not expected to fill any gaps in the marble surface or between the marble tiles; Do this powder need to follow a certain VOC level or is it exempt from IEQ c4 credits?
Omar--IEQc4.1 and IEQc4.2 only apply to wet-applied products. Since this is a powder, you do not have to worry about it for these credits.
Would a (site-applied) solid wood floor coating fall under "clear wood finish" with the limit of 350g/L or a "floor coating" with the limit of 100g/L? Thanks!
SCAQMD Rule 1113, 2004, defines "Floor Coatings" as opaque, so if your wood floor finish is transparent or translucent, it is one of the three types of "Clear Wood Finish" listed in 1113: Varnish, Sanding Sealer, or Lacquer.
For Lacquer (which dries without a chemical reaction), the VOC limit is 550g/L, but for the other two types (which dry by chemical reaction), the limit is 350g/L.
Is there any restrictions on using UV Lacquers?
Susan, there are no specific restrictions on UV-cured finishes—just the same rules as apply to all finishes.
UV-cured lacquers are often specified as shop-applied wood finishes, not so much for on-site application. Ask your subcontractor to confirm how and where they intend to apply the product. If they use it only in the shop, IEQc4.2 VOC limits will only become applicable if touch-up of damaged finishes occurs on-site.
When I have specified UV-cured shop finishes, I have specified compatible non-UV, low-VOC products for field use if touch-up becomes necessary on-site.
I'm currently reviewing a submittal for Fire-stopping Intrumescents and Mortar Products, applied on the interior of the building Envelope on a Project we are working on.
Beleive it should be considered as an 'Anti-Corrosive' Product Type under the VOC Classifications?. Can someone offer a second opinion?.
Ish—Intumescent fire-stopping, used to seal off floor & wall penetrations, qualifies under IEQc4.1 as an Architectural Sealant. However, intumescent paint falls under IEQc4.2.
Intumescent paint is usually applied to steel as fireproofing. When exposed to extreme heat, the paint expands, puffing up like popcorn, to form a protective insulating jacket around the steel. Since it is applied to steel, it may also have anti-corrosive properties. If it does, the Green Seal GC-03 VOC limit applies. Otherwise, use the GS-11 limits for “flat” or “non-flat.”
Jon - if the Firestopping Product is a mortar, a fire resistive
microsilica compound which may be applied as a fire-stopping/thermal insulation layer across an area, does it not make sense to qualify this product under IEQc4.2, assuming a coating?
Ish—If the mortar is a mineral-based, cementitious product, with no organic binders, polymers, or additives, neither IEQc4.1 nor IEQc4.2 applies to it. Check material safety data or ingredient lists to verify the mortar’s composition. If it contains only inert mineral components such as gypsum, Portland cement, or microsilica, VOCsA volatile organic compounds (VOCs) 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. should not be a concern.
If the mortar does include organic components, it may qualify as a “Pigmented Fire-Retardant Coating” if it meets that definition in SCAQMD-1113-2004.
The SCAQMD has sometimes baffled me with their categories, and in this case, the lack thereof. In 2007 the fire-retardant coating category was eliminated. It appears that sometime between then and 2014 it was reinstated as "fire-proof coatings", into which intumescent paint would seem to fit. The 2014 limit for fire-proof coatings is 150 g/l. Prior to that it was 350 g/l. I haven't delved into when it was re-instated. If the product you are reviewing is under 150, you are OK either under the current SCAQMD category or the non-flat paint category. If you are above that , you may need to have discussion with the USGBC about if and how you could use the 350 g/l limit.
Keith—For LEED NC-2009, refer only to the versions of SCAQMD and Green Seal Standards referenced by credit requirements (GS-11-1993, GC-03-1997, & SCAQMD-1113-2004). Definitions and requirements have changed in newer versions of these standards. Ignore them. They are not relevant to LEED NC-2009.
Ish—How is the mortar applied? Is it spread across a surface like paint, or is it troweled in to fill a wall or floor opening. If it is used as a fill gaps, it is not a coating governed by IEQc4.2. It may fall under IEQc4.1, but only if it contains organic binders, polymers, or additive. If it is entirely mineral-based, it is just mortar, and neither IEQc4.1 nor IEQc4.2 applies.
What category would whiteboard paint fall under? Plan to use IdeaPaint which has a COC of 325 g/L, don't want to calculate the VOC budget method if not necessary. Thanks!
Hi Craig – I’m not sure that I’ve heard from you since I worked with your brother on the Airport.
Whiteboard (Dry-Erase) paint probably qualifies as a non-flat with a VOC limit of 150g/L. The brand that you mention offers various lines of marker board paint. As you noted, one line reports having over 300g/L VOC, but the same company offers other lines of whiteboard paint that DO comply with LEED VOC limits. So do several other manufacturers.
If you DO have to use the VOC budget, and if you only use small quantities of non-compliant paint, you can use an abbreviated version of the budget that does not require you to quantify every such product used on the project. We pioneered this short-cut approach on the Airport project. See Part 3 of the Response to LI#1822: http://www.usgbc.org/leed-interpretations?keys=1822
If VOC content is mentioned as per ISO EU standard, is it acceptable for LEED?
Nowfal – I presume you mean ISO 11890-2, as cited in EU Decopaint Directive 2004/42/CE.
Apparently, the EU Directive’s methodologies for measuring VOC content differ considerably from those used in the SCAQMD & CARBThe California Air Resources Board, part of the state government, is charged with maintaining clean air. This agency is unique at the state level: California was the only state that had such an agency before the passage of the federal Clean Air Act, and was allowed to keep it. Standards referenced in LEED-2009. Therefore, measurements using the European standard may not be valid to show compliance with SCAQMD or CARB VOC limits. See Dwayne Fuhlhage's June 19 post on the LEED-2009 Core & Shell IEQc4.2 page:
On the other hand, under LEEDv4, 2004/42/CE is listed as an alternative to SCAQMD-1113 outside the US. LEEDv4 provides additional guidance for evaluating VOC content internationally. However, the LEED-2009 Global Alternative Compliance Path Guide does not include these alternatives (see http://www.usgbc.org/resources/leed-reference-guide-green-building-desig...).
Global VOC requirements appear to be the hot topic of recent LEEDuser posts. Since USGBC has not addressed this issue under LEED-2009, it may be wise to submit a formal inquiry. We can hope that USGBC will soon issue LEED Interpretations or Addenda that clarify this issue.
I am confused how to identify if this products should be considered as Adhesives and SealantsA sealant has adhesive properties and is formulated primarily to fill, seal, or waterproof gaps or joints between 2 surfaces. Sealants include sealant primers and caulks. (SCAQMD Rule 1168. )Sealants are used on wood, fabric, paper, corrugated paperboard, plastic foam and other materials with tiny openings, often microscopic, that may absorb or discharge gas or fluid. or Paints and Coatings. Need your advise please. Thank you.
“Dry Pre-Mix Mineral Based Bonding Coat” appears to refer to a plaster product applied over smooth concrete to provide a roughened (keyed) substrate for subsequent layers of plaster. As such, the product probably does not qualify as a coating under IEQc4.2. However, if the plaster base contains organic binders, polymers, or additives, adhesive VOC limits specified under IEQc4.1 could apply. Check material safety data or ingredient lists to verify the composition of the plaster. If the plaster contains only inert mineral components such as gypsum & Portland cement, VOCsA volatile organic compounds (VOCs) 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. should not be a concern.
However, to be safe, you could enter this product into the IEQc4.2 template as a "Primer" with a VOC limit of 200 g/L or a "Mastic" (300 g/L, max.) if it meets either definition under SCAQMD Rule 1113.
If the product forms a substrate for materials other than plaster, it might qualify under IEQc4.1 as a "Ceramic Tile," “Drywall”, “Panel,” or "Structural Glazing" adhesive if it meets any of these definitions under SCAQMD Rule 1168.
I am working on a project that specified a paint for a covered car park pavements that is an epoxy covering using for pavement's signals. In which category of IEQc4.2 Applicable VOC Limits, should this paints be considered?
Thanks in advance
IEQc4 VOC limits only apply to products used within a building’s weatherproof enclosure. Therefore, if your covered parking area is open to the outside air, IEQc4 VOC limits do not apply to these pavement-marking paints.
On the other hand, if your parking area is totally enclosed and protected from the elements, you must follow VOC regulations set forth in SCAQMD Rule 1113-2004. This rule sets a VOC limit of 150 g/L for “Traffic Coatings” that are “formulated for or applied to public streets, highways, and other surfaces including, but not limited to, curbs, berms, driveways, and parking lots.”
The problem is that in Europe there is a regulation that legislate VOC content limit for paints and varnishes. This directive defines for each product subcategory a maximum VOC content limit for water-based (WB) and for solvent-based (SB) products.
In this case, the subcategory is "two-pack reactive performance coatings for specific end use such as floors" and the VOC limit is respectively 140 g/L (WB) and 500 g/L (SB). Being this kind of products (epoxi coatings) always solvent based there is no way that a product like that is fabricated in Europe will fulfill LEED requirements.
You can find the EU Directive here: http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32004L0042&...
For LEED IEQc4.2, VOC content must be calculated using methods defined in the SCAQMD Rule 1113-2004 definition for “Grams of VOC per Liter of Coating, Less Water and Less Exempt Compounds.” In particular, read the special method for coatings that contain “Reactive Diluents,” products, such as epoxies, that contain VOCsA volatile organic compounds (VOCs) 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. “which, through chemical and/or physical reaction, such as polymerization, becomes an integral part of the coating.” This method calculates the VOC content of the product AFTER the components have been mixed and catalyzed. Contact coating manufacturers. Their chemists should be able to perform VOC calculations according to SCAQMD methods. EU methods appear to differ from SCAQMD.
Finally, as stated previously, LEED-2009 VOC restrictions do not apply to products applied outside the building’s weatherproof enclosure.
Also note that the EU Directive’s definition of VOC appears to differ from SCAQMD’s definition (“Any volatile compound of carbon, excluding methane, carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates, ammonium carbonate, and exempt compounds”). Since the two standards appear to use differing definitions of VOC and differing methods of measuring g/L VOC content, it is unlikely that EU’s g/L VOC designations correspond to SCAQMD’s.
For SCAQMD definitions of “VOC” & “Exempt Compounds,” see SQAQMD Rule 102:
See Dwayne Fuhlhage's excellent June 19 post on the Core & Shell IEQc4.2 page:
IEQc4.2 helps projects comply with source control methods mentioned in the SMACNA guide for IAQ plans.
Be very strict in using low-emitting products to avoid failing the air quality test, if pursuing that option.
The planning and tracking processes are the same for both of these credits.
To earn IEQc4.3, coatings used for flooring systems must comply with the IEQc4.2 VOC limits.
Do you know which LEED credits have the most LEED Interpretations and addenda, and which have none? The Missing Manual does. Check here first to see where you need to update yourself, and share the link with your team.
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