Remove any existing pieces of insulation that might have been covering the attic walls until now.
How to insulation attic foam boards.
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.
But insulating your floors is a good idea for many reasons including energy efficiency and height adjustments.
A table saw will also cut the board but it.
Measure the space between rafters and cut the board to fit.
2 measure and cut the foam boards as.
Foam board insulation is used on attics and walls yet it can also be used to insulate your floors.
Step 2 install insulation boards.
Use a chalk line or t square to mark where it needs to be cut.
You can use a utility knife to cut using the same cut and snap process you use with drywall.
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.
Most people do not think about insulating their floors unless perhaps it s their attic floor.
How do you install rigid foam board.