Foam Board Insulation Attic Rafters
2 measure and cut the foam boards as.
Foam board insulation attic rafters. Select rigid foam insulation boards that are at least 1 2 inch less in thickness than the rafter space is deep if you plan to finish the attic as living space. Better than spray foam thermal break and relatively consistent r 30. You can use foam board in the attic. 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.
The best attic insulation. Often the r value of fiberglass insulation is too low and requires the rafters to be retrofitted making foam board a better choice. 100 free of cfcs vocs penta bdes urea formaldehyde. Spray foam insulation that s convenient and easy to use.
Use closed cell foam it green for attic rafters. Get your kits the easy to use spray foam kit. It is an excellent installation option for the attic because it is lightweight easy to work with and offers high r values. Insulating boards are just one of the many types of foam insulation.
Consider using spray foam insulation as well to seal smaller cracks and gaps.