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.
Foam board insulation attic rafters.
Insulating boards are just one of the many types of foam insulation.
It is an excellent installation option for the attic because it is lightweight easy to work with and offers high r values.
Consider using spray foam insulation as well to seal smaller cracks and gaps.
Get your kits the easy to use spray foam kit.
Hire a pro to install spray foam insulation.
Foam board insulation is easy to cut with a circular saw with a masonry blade or scored with a utility knife and snapped like you would drywall.
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.
2 measure and cut the foam boards as.
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.
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.
Unlike solid insulation products that require careful measurement cutting and fitting spray foam can cover even the most uneven surface instantly.
R value of 7 in 1 inch 97 closed cell foam.
Often the r value of fiberglass insulation is too low and requires the rafters to be retrofitted making foam board a better choice.
The best attic insulation.
Class i e 84 fire retardant meets building code spec.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
100 free of cfcs vocs penta bdes urea formaldehyde.
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.
Spray foam insulation that s convenient and easy to use.
Use closed cell foam it green for attic rafters.