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FAQs about IEQc4.1 :

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?

How do I determine what application my product falls under?

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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Forum discussion

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

Cementitious tile adhesive

Does cementitious tile adhesive need to comply with VOC requirements of this credit? The adhesive is purchased as a dry powder and mixed on site by adding water. May I ask for your suggestions?

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Profile picture for user emilycatacchio
Emily Catacchio
Sustainability Specialist
Wight and Company
LEEDuser Basic Member
415 thumbs up

Fri, 07/13/2012 - 22:16

Yes, everything applied on-site inside the weather barrier needs to meet this credit. Often this type of product has zero VOCs, you just need to document it with an MSDS or manufacturer letter.
Profile picture for user nadiaayala
Nadia Ayala
Architect / LEED AP BD+C
KILTIK Consultoría
LEEDuser Basic Member
36 thumbs up

Fri, 08/17/2012 - 16:45

Hello, Emily, if the product is dry powder and the VOC concentration data the manufacturer gives us is in ppm measured in a 100gr sample, is it logic to calculate a gr/kg instead of gr/l value and use it as equivalents? Since the material is not in liquid presentation, we don't know how to approach this. Thank you for your insights.
Profile picture for user emilycatacchio
Emily Catacchio
Sustainability Specialist
Wight and Company
LEEDuser Basic Member
415 thumbs up

Sun, 08/26/2012 - 21:15

Nadia,I haven't submitted any powder based products for this credit, so I'm not sure. However I have known GBCI to be pretty strick with their measurement requirements. What kind of a product is it? Do you mix it with something prior to application?
Profile picture for user nadiaayala
Nadia Ayala
Architect / LEED AP BD+C
KILTIK Consultoría
LEEDuser Basic Member
36 thumbs up

Mon, 08/27/2012 - 14:14

Hi Emily, Thank you for your reply. It's the same kind of product that Joanna mentioned above. You mix it with plain water, (4 liters for a 20 kilogram bag). The manufacturer already gave us a letterhead description of the product stating that no VOC's are present in it. So I guess we should submit it that way, right? Thanks.

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