Combining Rigid Foam And Batt Insulation

Nor will that approach address thermal bridging through the studs.

Combining rigid foam and batt insulation.

The layering is from the outside inwards roof 1 in. The studs were 2 x 6 with fg batts. You can get similar results as doing all closed cell foam but with less cost. Flash fill flash batt using 2 different types of insulation for lower cost.

Rigid foam installed on the inside i built a 4500 sq ft. It had 1 2 foil faced thermax on every interior cold wall and ceiling. Yes foam board insulation is an excellent complement to batt insulation. Cape cod for myself just south of allentown pa.

I live in wa state climate zone 8a marine puget sound area. Foam board insulation can add insulation and eliminate thermal bridging when used in wall and ceiling assemblies insulated with batts. 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. In this video matt shows off a hybrid insulation system for a high performance home utilizing the flash batt 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. 2 foam on all basement exterior walls. Also squeezing an r19 batt into the remaining space will reduce the performance of the batt. It also had 1 foil faced thermax on every exterior wall.

Combining rigid and foam insulation. It s pretty wet here and i m concerned about moisture from the exterior walls. I can t find the proper rigid foam to batt insulation ratio for my climate zone. Foam it green spray foam insulation can be combined with other insulation to make a powerful hybrid method.

I m building my own house and reading up on ways to make my house more energy efficient. Cutting rigid foam board to fit between studs will be labour intensive and will not offer any significant improvement to your wall s thermal performance. This home has 2 of closed cell foam i. These are panels of rigid foam sold in 4 by 8 foot sheets in a variety of thicknesses from 1 4 to 2 inches it is also sold in large bundled panels joined at the ends accordion style for use as an exterior sheathing material.

Fiberglass batts mineral wool batts rigid foam insulation or spray foam insulation. Rigid foam insulation uses one of three materials. Airspace rigid foam batts vapor barrier plastic drywall. You can use a variety of insulation materials.