See all forum discussions about NC-2009 IEQc4.4
 Subscribe to new posts about NC-2009 IEQc4.4 Post a new question aboutNC-2009 IEQc4.4
See LEEDuser’s guidance on NC-2009 IEQc4.4»
FAQs about IEQc4.4 :

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

We have a product that complies with very stringent E1 and E0 European standards for low emissions. Does this product comply with this credit?

View answers »

Forum discussion

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

Floor joists part of interior?

Default Avatar
John Covello
Senior Sustainability Manager
UL Solutions
LEEDuser Premium Member
7 thumbs up

Hello, Are floor joists considered part of the building interior? So artificial wood used in the joists cannot have urea formaldehyde?

0
Post a reply

You rely on LEEDuser. Can we rely on you?

LEEDuser is supported by our premium members, not by advertisers.

Go premium for $15.95  »

Profile picture for user rbicknese
Ralph Bicknese
Principal
Hellmuth & Bicknese Architects
LEEDuser Premium Member
20 thumbs up

Fri, 12/11/2015 - 15:41

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.

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.