Hello,
Are floor joists considered part of the building interior? So artificial wood used in the joists cannot have urea formaldehyde?
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Ralph Bicknese
PrincipalHellmuth & Bicknese Architects
21 thumbs up
December 11, 2015 - 10:41 am
Yes, any wood joists inside the building envelope are considered interior. And yes, engineered wood joists (and any other engineered wood on the building interior) may not contain any added urea formaldehyde to meet this credit.
Wood naturally contains small amounts of formaldehydes. The key for this credit is that the glues used to bond fibers and other components of the engineered wood may not contain added urea formaldehyde.