Combining Rigid Foam And Batt Insulation

Fiberglass batts mineral wool batts rigid foam insulation or spray foam insulation.

Combining rigid foam and batt insulation.

Also squeezing an r19 batt into the remaining space will reduce the performance of the batt. Yes foam board insulation is an excellent complement to batt insulation. Researchers who have measured the moisture content of rim joists with rigid foam on both sides haven t discovered any problems the moisture content of the rim joists isn t worrisome. Airspace rigid foam batts vapor barrier plastic drywall.

Nor will that approach address thermal bridging through the studs. You can get similar results as doing all closed cell foam but with less cost. The layering is from the outside inwards roof 1 in. You can use a variety of insulation materials.

Foam it green spray foam insulation can be combined with other insulation to make a powerful hybrid method. It s a technique used by some insulation contractors where a flash of closed cell spray foam at 1 to 2 inches is applied in an effort to create an air seal and then puts fiberglass batt insulation over it. Flash and batt is a combination of spray foam insulation with fiberglass batts. Foam board insulation can add insulation and eliminate thermal bridging when used in wall and ceiling assemblies insulated with batts.

Flash fill flash batt using 2 different types of insulation for lower cost.