Attach the two layers of foam board together and apply them to the hatch.
How to attach rigid foam insulation to attic access.
Place a strip of caulking at every junction where the foam boards will have to meet the support structures of the attic.
Step 4 cut foam boards the next step involves cutting out the foam boards according to precise measurements.
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 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.
Cut two pieces of foam board that are about 1 4 smaller than the hatch.
Use a screw length as long as the insulation is.
Make sure the r value of the insulation on the hatch matches the r value of the insulation in the rest of the attic.
Once you have the appropriate materials you can start the process of sealing and insulating the attic hatch.
Install fiberglass batt insulation on top of the foam board.
Place the furring strips on the wall carefully making sure they are aligned in a straight plane with one another.
Install the weather stripping onto the hatch or on the inside of the trim.
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.