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NC-2009 IEQc4.2:Low-Emitting Materials—Paints and Coatings

Averaging Compliance Option (ACO)

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Paul Diaz
Sustainable Design Coordinator
SMMA
LEEDuser Basic Member
7 thumbs up

I'm working on a LEED project and I have a submittal for a concrete waterproofing product that exceeds the current VOC limit of 100g/l. From what I can gather, the product can be deemed compliant if the manufacturer can present documentation that the off-gassing of the product over a given period (Averaging Compliance Option) is below the previous limit or ceiling (in this case 400 g/l). Is this correct? Or is this simply a non-compliant product, which would require a VOC budget should it be employed on the project? Thanks

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Wed, 08/22/2012 - 14:56

I would ask for a revised submittal that meets the VOC criteria - there are good products available. VOC budgets (I have been audited) are there in case of mistake with a small amount of material. It is not the intent to plan for the use of a VOC budget.
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Balaji kasiviswanathan
Architect - Sustainability & LEED
Middle East Centre for Sustainable Development
LEEDuser Basic Member
18 thumbs up

Wed, 09/05/2012 - 07:39

You can still consider the maximum allowable VOC limit of 400 g/L (less water) for Waterproofing Concrete/Masonry Sealers which was on effect as of January 2004, SCAQMD Rule 1113 referenced in the LEED 2009 Reference Guide (http://www.usgbc.org/ShowFile.aspx?DocumentID=8868) and also in the Addendum 100000419 (https://www.usgbc.org/ShowFile.aspx?DocumentID=8608)

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