"Green" Plywood?
"Green" Plywood?
(OP)
We are currently working on a large private residence, and one of the design requirements is that we cannot use engineered lumber products. Apparently the owner has allergies to just about everything, and we cannot introduce the types of adhesives used in plywoods/LVLs, etc.
I've heard that a plywood exists that uses special glues that would eliminate his problem. Has anyone heard of/used/have any info on this type of product?
Thanks in advance-
I've heard that a plywood exists that uses special glues that would eliminate his problem. Has anyone heard of/used/have any info on this type of product?
Thanks in advance-





RE: "Green" Plywood?
If it ends up that you can't use any plywood you may have to use diagonally applied board sheathing.
RE: "Green" Plywood?
The issue came up after the entire 15,000 s.f. house was designed. I had to go back and redesign every beam as a steel beam. There is a type of OSB that is made with glue that is supposed to be friendly to people with this type of allergy. I would check with APA or OSB manufactures. Sorry I can’t give you better information, it has been years and this doesn't come up much. It is definitely an allergy that you have to be rich to be able to afford to have.
RE: "Green" Plywood?
or
Design the house with masonry/concrete walls with bar joists or an elevated concrete slab. Anything is possible; how much do they want to spend?
woodengineer
RE: "Green" Plywood?
Diagonal sheathing boards has already come up... it's just that the architect said he had heard about this plywood, and we're in the early stages of researching it... We've gone steel moment frame because of the open floorplan and the expanses of perimeter glazing, really just down to the floor diaphragm at this point (and a "non" structural base to distribute wind loads to the metal studs and attach exterior finishes to)
The elevated concrete slab was set aside because of concerns that it would continue to give up moisture after the flooring above was in place...
RE: "Green" Plywood?
I found this after a short search. Apparantly there is a formaldehyde that is not as bad as the other. If they say so, I'm no chemist. They also talked about sealing with polyurethane. I didn't find any formaldehyde free products, though.
http://w
More stuff at this link.
Good luck.
RE: "Green" Plywood?
The floors, diagonal boards, as woodengineer suggests.
SeattleMike