Hello, I have extreme multiple chemical SENSITIVITY. I need a vapor barrier membrane for my dirt floor crawl space. It needs to be free of formaldehyde, bleach, petroleum free, so the smell doesn't come up into home. Also need chemical free spray foam too or something to seal under floor joists. Crawl space is 3 feet high.Do you have a shellac that would not crack to cover a wood floor?
Moisture Block Pro (175 SF Roll)
Adhesives and Underlayment
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Open Jan 05, 2020 - 10:06 AM
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Jan 05, 2020 - 01:05 AM
Our Moisture Block is a 6ml zero VOC polyethylene vapor barrier 3' wide x 35' long, designed for beneath floating floors. Normal barriers for crawl spaces are thicker and larger. Ours can be used if you double it up and tape it all together. No tape is required as the white tear off strip exposes adhesive that allows one layer to bond to the next.Sorry, we know of no spray foam that is safe. All have nasty and highly questionable hazardous air pollutants. Try cotton or wool batts.We offer a non-toxic polyurethane that is low VOC but the floor and subfloor must be stable and non-moving. Cracking usually occurs from expansion and contraction resulting from the movement of the subfloor in climates that alternate between humid and dry. We don't carry shellacs because we have not found any that are non-toxic. Most contain solvents with high VOC emissions.
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Moisture Block Pro (175 SF Roll)
Easy-to-use, self-sealing vapor barrier
MoistureBlock Pro is a convenient and effective vapor barrier designed specifically for small to medium-sized flooring jobs. MoistureBlock Pro totally eliminates the hassle of dealing with a giant sheet of folded plastic.
Most sheets of plastic are o...
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