Insulation Board For Attic Roof
Technically known as spray polyurethane foam or spf spray foam is most commonly applied in the space between attic rafters.
Insulation board for attic roof. It s often used over existing insulation in the attic where moisture control isn t needed. Install foam boards with the foil side facing you. The superattic system utilizes proprietary silverglo rigid foam insulation panels to fully seal and insulate the attic directly beneath the roof rafters and directly inside the gable ends. It can act as an air and moisture barrier in addition to providing very high r value.
To create an airtight seal use foil tape. Your board must leave at least inch gap between the board and the roof. It helps resist moisture that can lead to mold or mildew and provides increased sound and thermal insulation. Try a spray foam insulation kit to fill cavities gaps cracks expansion joints and other sources of air leaks.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Additionally insulation serves as a way to enhance sound proofing on the uppermost envelop of your house. Use furring strips nailed into the sides of the rafters so that you have something to fasten the board to. Insulating your roof and attic space will help retain energy in your home often leading to cost savings and comfort improvement.
Better materials for attic roof insulation are rigid foam boards and spray foam insulation.