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Is there a shortcut to the VOC budget method if you have just one product that is used minimally on a project?

Do products applied to the weather barrier need to comply with VOC thresholds?

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How is VOC % less water determined for aerosol adhesives?

Do grout and caulking need to be included, and if so, what is the application category?

Our project didn't use some common adhesive types, and our LEED reviewer asked about this. Are we supposed to justify not using certain adhesives in our documentation?

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NC-2009 IEQc4.1:Low-Emitting Materials—Adhesives and Sealants

HangarGrip Adhesive

The product in question is the Eco Hanger Grip Adhesive from MEI, described as "a construction-type paste adhesive specially designed for bonding insulation hangers to metal ducts and unfinished masonry surfaces." Would this be considered a Special Purpose Contact Adhesive with a VOC limit of 250 g/L? The product has a VOC content of 187 g/L.

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David Posada
Integrated Design & LEED Specialist
SERA Architects
LEEDuser Expert
1361 thumbs up

Mon, 07/18/2011 - 17:23

Since it's often unclear what category a particular product should fall under, it maybe necessary to check the definitions in Rule 1168 to help guide your decision. There it states "SPECIAL PURPOSE CONTACT ADHESIVE is a contact adhesive that is used to bond melamine covered board, metal, unsupported vinyl, Teflon, ultra-high molecular weight polyethylene, rubber and wood veneer 1/16 inch or less in thickness to any porous or nonporous surface." This would suggest it's intended more for laminating sheets of thin material to a substrate. "Contact Adhesive" is more specifically defined as adhesive that is allowed to dry on both before bringing the materials together. I'm not familiar with this particular product, but it sounds like it may fall under the "Substrate Specific Applications" table on page 11 of the Rule 1168 document linked above in the Resources Tab. Depending on what category you decide to be the most suitable, you may need to use the VOC budget approach.

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