This weekend I'll be finishing my french drain and possibly adding 2" XPS foam, depending on what you guys tell me...
From the picture, would it be OK if I concrete beside the XPS foam? I have 7'6" ceilings so a full 8ft pc of foam will not fit and instead of cutting it, could I leave the remaining beside/under the slab? I would imagine this would help push any moisture into the drain I have below?
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