We're planning to convert our poured concrete basement to living space. There is some moisture, though never to the level of having standing water. We'd like to turn the space into finished living space (eventually, walls are a seperate topic)
I've finished a couple basements in the past with sleepers, foam, poly and subfloor - but those have been in much dryer areas.
I had a few ideas of my own and some that I'd read elsewhere and I'd love any input on them...
1. The way I'd do it: PT2x4 sleepers right on the concrete, screwed to the concrete. Rigid XPS foam in the cavities, 6mil poly across the top of the whole thing, then decked with 3/4 TG ply.
2. The way my wife suggested: Same as above, but use the 1x4 PVC lumber instead of pressure treated lumber and thinner xps foam. Never thought of this before, think the pvc would work?
3. Google Suggestion #1: Poly against the concrete, sleepers on top, XPS in the voids, poly on the top, decked with 3/4TG ply. I've never done poly against the concrete - any concerns here?
4. Google Suggestion #2: 1.5" XPS right against the concrete, no wood sleepers at all. Polcy on top of the XPS, 3/4"TG on top of the poly, screws through the ply and foam into the concrete.
5. Google Suggestion #3: XPS right against the concrete. Poly on top of the foam. Untreated 1x4 sleepers on top of the poly, open cavities, decked with 3/4"TG ply.
I'm going to hit the floor and walls with a good coat of a drylock or something similar prior to flooring anything.
How have others done this down here?
I've finished a couple basements in the past with sleepers, foam, poly and subfloor - but those have been in much dryer areas.
I had a few ideas of my own and some that I'd read elsewhere and I'd love any input on them...
1. The way I'd do it: PT2x4 sleepers right on the concrete, screwed to the concrete. Rigid XPS foam in the cavities, 6mil poly across the top of the whole thing, then decked with 3/4 TG ply.
2. The way my wife suggested: Same as above, but use the 1x4 PVC lumber instead of pressure treated lumber and thinner xps foam. Never thought of this before, think the pvc would work?
3. Google Suggestion #1: Poly against the concrete, sleepers on top, XPS in the voids, poly on the top, decked with 3/4TG ply. I've never done poly against the concrete - any concerns here?
4. Google Suggestion #2: 1.5" XPS right against the concrete, no wood sleepers at all. Polcy on top of the XPS, 3/4"TG on top of the poly, screws through the ply and foam into the concrete.
5. Google Suggestion #3: XPS right against the concrete. Poly on top of the foam. Untreated 1x4 sleepers on top of the poly, open cavities, decked with 3/4"TG ply.
I'm going to hit the floor and walls with a good coat of a drylock or something similar prior to flooring anything.
How have others done this down here?
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