How Do You Install Rigid Foam Insulation?
Rigid foam insulation can be installed in a weekend by a novice do-it-yourselfer. It’s easy to install and energy-efficient. When it’s covered with wall board, it’s also highly fire-resistant. Insects won’t eat it, but they will burrow through it, so it’s not recommended for outside use. Rigid foam can be used to insulate almost any room in your house, and in some cases will actually add structural strength to walls. Correct any moisture problems with the walls where you’ll be installing the insulation. Simple problems can be fixed with a waterproof paint. More complex problems might require an expert’s help. Attach 2-inch-by-2-inch furring strips to the wall on-center, 16 inches apart. Use a level to ascertain that the strips are flush. Use shims to even out any irregularities in the wall. Measure the foam insulation and cut it to size. It should fit tightly between the furring strips. Press the foam into the spaces between the strips. Leave as little space as possible between pieces
