How To Insulate And Air Seal Pull Down Attic Stairs
Cut a piece of foam the size of the exterior dimensions of the box for the lid.
How to insulate and air seal pull down attic stairs. Once you have the materials you can follow these steps to seal the attic pull down stairs. If you have pull down attic stairs or an attic door these should be sealed in a similar manner. Place your constructed box in place and begin to tape it down to the floor. Since with attic insulation we gun for a pretty high standard at least r 49 the coffin insulation should match.
Several companies sell prefacbricated foam or fabric enclosures or tents designed to reduce air leaks and heat loss at attic stairs. Attach foam tape weather stripping to the top edge of the box to form a tighter seal. Use caulk to air seal between the frame and opening. The draft cap attic stair insulator.
Cut two strips of 1 2 inch wide self adhesive rubber weatherstrip the length of the longest sides of the frame with scissors. A pulldown stairs is a real convenient way to get from your house to the attic. Weatherstrip the edges and put a piece of rigid foam board insulation on the back of the door. Pull down the door and extend the stairs down to the floor.
If your hatch rests directly on the moldings like ours did add 2 1 2 in wide stops around the. When you re done sealing your attic bypasses push the insulation back into place with an old broom handle or stick as you back out of the attic. Tape the lid to the top of the box along one of the long edges with foil tape. Create a box using the foam board.
The battic door attic stairs cover. At least 4 of foil faced polyisocyanurate should be glued to the box though 6 or 8 isn t uncommon. Clean the floor around the attic stairs so the tape will adhere well. Affix the fiberglass insulation to the top of the box.
Cut a piece of fiberglass or rigid foam board insulation the same size as the attic hatch and nail or glue it to the back of the hatch. Apply a bead of caulk around the entire inner edge to help seal it entirely. Make sure the box fits squarely over the access. Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11.
Products designed to seal or insulate attic stairs. Insulate add insulation to the exterior of the plywood box. If the gap is less than 1 2.