...rigid and 5 1/2" between the studs. why not use 8" semi rigid, 3 1/2" between the studs and 2 " more semi rigid on the inside beneath the gyprock? Is that pos...
...rigid insulation on the exterior of a 2x6 wall, so we installed a plywood extension to allow the window to sit solidly, partly over the exterior board insulatio...
...Insulation & Styrofoam There are rigid insulation boards that will act as the insulation only, insulation and air barrier only, or all in one - insulation, ...
...rigid board insulations are a vapour barrier, some are not. Some are air barriers, some are not. XPS foam insulation at about 1 inch thick will act as a vapour ...
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