How To Insulate Attic Stairs

Once the drywall is installed you can fill the gap with spray foam.

How to insulate attic stairs.

With attic insulation we aim for a pretty high standard usually at least r 49 and the coffin insulation should match. Insulate attic drop down access stairs insulation for pull steps savings project cover box an stair big energy construct battic door r 50 the guardian 38 ladder how to insulate attic drop down access stairs today s homeowner insulation for pull down attic steps hometalk savings project attic stairs cover box department of energy how read more. If you have pull down attic stairs or an attic door these should be sealed in a similar manner. Add insulation to the exterior of the plywood box.

More insulation 6 inches or 8 inches isn t uncommon. That means that you should glue at least 4 inches of foil faced polyisocyanurate r 26 to the box. To insulate fold down attic stairs. Caulking around the flange helps to further insulate the stairs by preventing air from escaping into the attic.

Assemble the sides of the box with metallic duct tape. Then take your self adhesive foam weather stripping and apply it all around the perimeter of where the frame and the door meet. Once the opening has been sealed it can be further insulated by building a foam box in the attic to enclose the stairs. Begin by checking to see if the attic stairs close tightly then apply self adhesive foam weather stripping around the perimeter where the plywood door meets the frame except on the hinge end.

Measure the size and height of the stairs from the attic. If the flange of your zippered attic cover sits on top of insulation there is no way to caulk it in place. Do not apply the weather stripping to the hinge end. Position the box over the stair opening in the attic.

Weatherstrip the edges and put a piece of rigid foam board insulation on the back of the door. Apply weather stripping first check that your folding attic stairs are able to close securely and tightly. 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. One way is to install 2 4 blocking behind the stringers.