Posts Tagged ‘case all’
Gigbag Soft
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Polyfoam Padded
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Question: What underlayment do I use for my engineered wood floor?
I have a very old home that is on blocks. It was built with a 1 x 3 pine plank floor with no sub-floor. I recently remodeled and installed felt paper over the old planks then a polyfoam underlayment pad with an engineered wood floor on top. After several weeks the original wood plank floor began to cup and buckle underneath from moisture. I have now removed the expensive new flooring and am at a loss of what underlayment to use. I suspect that my problem was either evaporation from under the house or condensation from the polyfoam pad. Any suggestions?
Answer: I agree w/ sw that you need to put an additional 3/4" tongue and groove flooring down. But you put it at 90 degrees to the old 1x3. Unless the 1x3 is put on a diagonal to begin with, which I ve seen done in older houses. Then you put the new ply perpendicular to the joists below putting all end seams splitting the joists.
I disagree with a poly foam for a standard engineered wood floor. Unless this is a floating floor system. Nail down systems you just use a rosin paper or felt paper under the wood.
Any questions you can e mail me through my avatar. GL


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