Slab, vapor barrier, insulation
Steve from northern VT. I want to double-check things. We’re about to do a slab over 1 1/2 crushed bedding. We plan to use StegoWrap 15mil as the vapor barrier, with taped joints. And, 2″ blue rigid insulation under the slab. Slab will be 4″ 4,000 psi, reinforced, over 10×10 wire mesh.
1. the proposed layering (from bottom upward) is: crushed stone, StegoWrap, blueboard, wire mesh. Correct?
2. the inside foundation walls (above finished floor) will be insulated with 2″ blue foam board. Is there any benefit or downsides to running the StegoWrap up above the height of the floor, up the walls to the top of the sill (i.e., between the concrete wall and the concrete insulation. It strikes me to be a great wrap to completely wrap the inside of the basement.
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