Cut the r 19 insulation to the dimensions.
How to build attic stairs insulation.
Measure the size and height of the stairs from the attic.
Screw the unattached side of the piano hinge to the framing member.
Once the drywall is installed you can fill the gap with spray foam.
Cut sides and top from sheets of 3 4 foam board with a utility knife.
With attic insulation we aim for a pretty high standard usually at least r 49 and the coffin insulation should match.
Attach the foam box to the.
The edges of the box should be flush with the.
More insulation 6 inches or 8 inches isn t uncommon.
You may add caulk on top of the tape to reinforce your seal.
Learn the right way to insulate your attic pulldown stairs for increased comfort and energy savings.
Add insulation to the exterior of the plywood box.
With the hinge secured gently open and close the.
After cleaning and drying the opening of the stairs put the insulation box in place.
That means that you should glue at least 4 inches of foil faced polyisocyanurate r 26 to the box.
The stairs themselves also need to be insulated and the bottom of the stringers should be air sealed with airtight drywall.
Position the newly constructed box over the attic stair opening.
One way is to install 2 4 blocking behind the stringers.
Assemble the sides of the box with metallic duct tape.