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

DOOR Core

My door core consists of the following: Gypsum, organic fibers, fiber glass and inert binders. Does my door core classify as composite wood? Given the definition of IEQ 4.4, it does.... I would imagine laminating adhesives can only be used offsite, It can not be used onsite....Can someone please confirm this ..unlike IEQ 4.1 and 4.2, where the products must be used onsite and meet and a certain VOC limit..

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Jon Clifford
LEED-AP BD+C
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Tue, 06/24/2014 - 12:47

If the “organic fibers” are wood or agrifiber, your door must contain no added urea-formaldehyde (NAUF) to achieve IEQc4.4. Laminating adhesives must also be NAUF, regardless of whether they are applied on-site or in the shop. IEQc4.4 requires the following: “Composite wood and agrifiber products used on the interior of the building (i.e., inside the weatherproofing system) must contain no added urea-formaldehyde resins. Laminating adhesives used to fabricate on-site and shop-applied composite wood and agrifiber assemblies must not contain added urea-formaldehyde resins.” Refer to the LEED-NC Rating System for credit language and the LEED-2009-BD+C Reference Guide for detailed explanation of requirements.

Tue, 06/24/2014 - 13:25

what if the organic fibres are not made of wood or agrifiber. Would it still qualify provided that it's NAUF? Composite wood and agrifiber are defined as particleboard, plywood, wheatboard, strawboard and door cores. Door cores are included.
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Jon Clifford
LEED-AP BD+C
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LEEDuser Expert
261 thumbs up

Thu, 06/26/2014 - 03:31

The “organic fibers” are probably plant-based. If so, they qualify as wood or agrifiber. See the LEED-2009-BD+C Reference Guide for the definition of “agrifiber”. Door cores are only included under IEQc4.4 if the cores contain wood or abrifiber. Cores made exclusively of non-organic materials, such as minerals &/or fiberglass do not fall under IEQc4.4.

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