Build Attic Stair Insulation Box

I also made the box wider and longer than the attic stair opening so that i could install weather stripping on the bottom to create a tight seal.

Build attic stair insulation box.

4 attach the blanket insulation and wrap it. The shield holds the insulation to the box. Attach the blanket insulation to the attic side of the cover box with adhesive and wrap it with building wrap or other air barrier to prevent air movement in the insulation from degrading its r value. Add the desired amount of insulation over the cover to restore the insulation removed from the ceiling.

That means that you should glue at least 4 inches of foil faced polyisocyanurate r 26 to the box. Attach the foam box to the floor with metallic tape. Whole house fans and ac returns. Insulated attic stair cover box.

With attic insulation we aim for a pretty high standard usually at least r 49 and the coffin insulation should match. Hinge the lid to the box on one side with metallic tape. Finally i made the main insulated attic stair box cover. Position the box over the stair opening in the attic.

Attic stairs insulation cover for pull down stair 25 x 54 x 11 r value 15 3 extra thick fire proof attic cover stairway insulator with easy installation attic stairway cover 4 7 out of 5 stars 146. Measure the size and height of the stairs from the attic. Insert the insulation into the reflective shield and place the stair cover rigid box into the reflective shield covering the insulation. Add insulation to the exterior of the plywood box.

More insulation 6 inches or 8 inches isn t uncommon. Cut sides and top from sheets of 3 4 foam board with a utility knife. An attic insulation box covers the attic ladder with insulation which stops the flow of air into your house and eliminates any drafts around the opening. Additional insulation not included may be added to the sides or insulate the attic up to the sides of the stair cover kit.

The box is hinged on one side which makes. An easy low cost solution to this problem is to add an attic stair cover. I made the box wider than the custom piece so it would fit over the first box. The box should rest squarely on top of the attic stairs frame or on wood stops installed to.

An attic stair cover provides an air seal reducing the air leaks.