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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?

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

Salvage Material with Composite Wood Content

I have a wall cladding product that is made from salvaged solid wood and salvaged glulams that have been resawn. While a glulam is technically a composite material, my product is only using a salvaged composite as a component and is not manufacturing it. I considered this product exempt, but the reviewer is looking for clarification. Does anyone out there believe there is any other clarification needed than the explanation I've just made?

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Wed, 11/23/2016 - 13:35

I would think that the reviewer is looking for verification in the manufacturing process of the new (final) cladding material, the no added formaldehyde glues were used? Also, when you describe this as cladding, is it on the exterior of the building? If so, the material is exempt for this category.

Wed, 11/23/2016 - 17:13

Hi John-David, There is no manufacturing process for the final wall cladding material. They are simply sawing the existing glulam material and piecing it together with other solid wood. And yes, it's an interior product. Am I supposed to talk them into making a NAUF statement, even though they aren't manufacturing the composite?

Wed, 11/23/2016 - 18:20

Okay, the question is: how are they "piecing it together" with the other solid wood? Is there an adhesive used in the process?

Wed, 11/23/2016 - 18:55

It's tongue and groove with beveled edges. There are adhesives involved in installation and some finishes if desired.

Wed, 11/23/2016 - 19:05

I would suggest providing a letter stating what you have said about the salvaged material (which should be exempt from this credit) and explain that there are no adhesives used in manufacturing (tongue & groove) and provide documentation for the adhesives used in installation.

Wed, 11/23/2016 - 19:11

Okay, thanks. I'm just a little leery about the salvage issue. Theoretically, it could still offgas, though I can only assume a salvaged structural member would be more than a few years old. I could also move into the v4 realm and note that glulams are not considered CARB regulated composites and are now exempt due to phenol formaldehyde manufacturing processes. I'd rather keep it simple. Thanks for the prompt responses. Have a good holiday.

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