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Discussion Starter · #1 ·
Here's the scenario:
The room was originally a back porch - slab on grade. It was converted to a four season room. The HO says that the previous contractor put in a system of 2x4 joists, then plywood subfloor, then carpet.
The HO wants me to install prefinished hardwoods and I'm wondering whether I should use a liquid vapor barrier or plastic sheet goods, and if you have any favorite products that would be great.
I already spoke with the flooring manufacturer and they were no help. They just said, and I quote, "Yeah, you should use a vapor barrier, but I don't know what kind."
I'm also concerned that sealing the plywood may trap the rising moisture from the concrete and rot out the sub floor. I may have to find some way to ventilate the joist space.
Please let me know what you think.
Thanks.
 
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