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Our project is planning to use no composite wood products. Do we automatically earn this credit?

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NC-2009 IEQc4.4:Low-Emitting Materials—Composite Wood and Agrifiber Products

engineered structural lumber like glullams

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Jess Harris
Green Building Program Manager
City of Seattle
LEEDuser Basic Member
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This is what I glean from reading comments and other sources. engineered lumber does need to meet this standard because it is considered interior, within the "weather barrier". However, they use exterior grade glues with phenol and not the kind that is prohibited. Can somebody confirm my assumptions?

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Josh Jacobs
Technical Information & Public Affairs Manager
UL Environment
LEEDuser Basic Member
356 thumbs up

Thu, 01/16/2014 - 16:45

All composite wood materials, which I would say engineered lumber falls under, on the interior of the structure (as stated, within the weather barrier) can not have UF added. If they use other adhesive/glue agents that do not have UF added, but are high emitting, you may be putting the IAQ at risk, and therefore other credits, but it does not impact this specific credit.

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