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.
Build attic stair insulation box.
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 should rest squarely on top of the attic stairs frame or on wood stops installed to.
Whole house fans and ac returns.
Insulated attic stair cover box.
Cut sides and top from sheets of 3 4 foam board with a utility knife.
I made the box wider than the custom piece so it would fit over the first box.
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.
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.
The box is hinged on one side which makes.
4 attach the blanket insulation and wrap it.
That means that you should glue at least 4 inches of foil faced polyisocyanurate r 26 to the box.
More insulation 6 inches or 8 inches isn t uncommon.
Finally i made the main insulated attic stair box cover.
Much like attic stairs above when whole house fans are installed.
Add insulation to the exterior of the plywood box.
Insert the insulation into the reflective shield and place the stair cover rigid box into the reflective shield covering the insulation.
Position the box over the stair opening in the attic.
The shield holds the insulation to the box.
Attach the foam box to the floor with metallic tape.
Measure the size and height of the stairs from the attic.
With attic insulation we aim for a pretty high standard usually at least r 49 and the coffin insulation should match.
Assemble the sides of the box with metallic duct tape.
Add the desired amount of insulation over the cover to restore the insulation removed from the ceiling.
Hinge the lid to the box on one side with metallic tape.
Installs easily without tools.