Roof Foam Insulation Board

Rigid roof insulation board.

Roof foam insulation board.

Some types of thicker foam board insulation are available but they may need to be special ordered. Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency. Insulating boards are just one of the many types of foam insulation. Once the roof demo was complete and the flat roof was cleared of any remaining debris some rotted 2x material around the perimeter of the roof was replaced.

Seal the insulation or the ceiling surface below against air leakage. Polyurethane spray foam metal roof insulation in order to add moisture barrier under metal roof you can spray the undersides of the roof by using a thick layer of polyurethane spray foam. Click to add item insofast ux 2 0 r 8 5 eps foam board insulation panels 40 sq. Composed of a closed cell polyisocyanurate foam core bonded in the foaming process to 1 2 thick duraboard an expanded perlite mineral aggregate board on one side and a fiber glass reinforced facer on the other.

Foam board insulation is easy to use and is a great diy way to add some insulation. It s light weight provides ease of handling. The rigid foam board insulation we used was 2 thick and came in 4 x 8 sheets. Use closed cell spray foam closed cell foam board extruded polystyrene such as dow styrofoam or foil faced iso board.

Consider using spray foam insulation as well to seal smaller cracks and gaps. Click to add item johns manville fiberglass face polyiso roof decking insulation 4 x 8 to the compare list. It will help you to eliminate problems that may come when the house becomes extremely cold in the winter and terribly hot in the summer. You don t want moist air leaking into the roof cavity.