Foam Board Insulation Attic Rafters

You can use foam board in the attic.

Foam board insulation attic rafters.

Unlike solid insulation products that require careful measurement cutting and fitting spray foam can cover even the most uneven surface instantly. Use closed cell foam it green for 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. You can use rigid foam panels or do as tom silva does with nearly all houses these days.

Spray foam insulation that s convenient and easy to use. If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor. 100 free of cfcs vocs penta bdes urea formaldehyde. Polyurethane or polystyrene spray foams can provide thorough coverage to roof rafters and attic walls in much less time than is needed for other materials.

Get your kits the easy to use spray foam kit. Class i e 84 fire retardant meets building code spec. R value of 7 in 1 inch 97 closed cell foam. 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.

To attach the insulation you can use screws with large washers a special adhesive made for adhering foam board insulation or for smaller pieces you can seal them in with caulk or spray foam. 2 measure and cut the foam boards as. Hire a pro to install spray foam insulation. Often the r value of fiberglass insulation is too low and requires the rafters to be retrofitted making foam board a better choice.

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. The best attic insulation. It is an excellent installation option for the attic because it is lightweight easy to work with and offers high r values.