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.
How to attach rigid foam insulation to attic access.
Once you have the appropriate materials you can start the process of sealing and insulating the attic hatch.
2 measure and cut the foam boards as.
Cut out two pieces of rigid foam board that are 1 4 inch smaller than the hatch so homeowners can slide the attic access panel open easily.
Step 4 cut foam boards the next step involves cutting out the foam boards according to precise measurements.
Attach the pieces of foam board to themselves and then attach them to the hatch.
Place the furring strips on the wall carefully making sure they are aligned in a straight plane with one another.
Make sure the r value of the insulation on the hatch matches the r value of the insulation in the rest of the attic.
Install fiberglass batt insulation on top of the foam board.
Sink a large head screw or a screw with a washer through the rigid foam insulation into each of the four corners and on either side of the doorknob.
Cut two pieces of foam board that are about 1 4 smaller than the hatch.
Place a strip of caulking at every junction where the foam boards will have to meet the support structures of the attic.
Install the weather stripping onto the hatch or on the inside of the trim.