Polyisocyanurate insulation is a type of insulated foam board that offers a high level of thermal resistance and cold weather protection for your home.
Polyisocyanurate insulation in attic.
R 6 polyisocyanurate rigid foam insulation board.
I will need 8 of polyiso to meet my disired r value r 48 while keeping the 2x4 rafter bays wide open for.
A polyiso continuous insulation system keeps energy and heat loss to a minimum increasing the building s energy efficiency and leading to lower monthly operating costs.
Rmax thermasheath 3 1 in.
By blocking thermal bridging a polyiso continuous insulation system increases the overall thermal performance of a wall assembly and a building.
Polyisocyanurate insulation costs more than other types of foam board but can help to save you thousands of dollars in electrical heating and cooling costs.
A 1 5 inch thick polyiso panel is rated r 9 that s almost double the rating per inch of typical attic insulations.
Polyiso foam boards are available in a range of compressive strengths meeting various marketplace requirements.
R 13 1 polyisocyanurate rigid foam insulation board.
These facings provide strength improve rigidity and enhance thermal performance.
Polyisocyanurate board insulation is most commonly supplied as 1 2 x 2 4 m or 1 2 x 2 7 m 4 x 8 ft or 4 x 9 ft sheets in various thicknesses.
As a spray foam alternative i m considering using continuous rigid foam along the 32ft long x 7ft slope in my side attic and just spray foaming in the lower joist bays and places where taping is difficult.
The attics are about as simple as can be with no dormers or other obstructions.
Rmax thermasheath 3 2 in.