If you have pull down attic stairs or an attic door these should be sealed in a similar manner.
How do i insulate my attic stairs.
Attic pull down stairs can leak air which leads to higher energy bills.
That means that you should glue at least 4 inches of foil faced polyisocyanurate r 26 to the box.
Once the opening has been sealed it can be further insulated by building a foam box in the attic to enclose the stairs.
Pre made insulated attic stair covers are also available from local home improvement centers or on the web.
This video shows you how to easily construct an insulated cover.
With attic insulation we aim for a pretty high standard usually at least r 49 and the coffin insulation should match.
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.
Treat the attic door like a door to the outside.
How to insulate under stairs install 1 3 wood strapping along the bottom of the stair stringers from the bottom up to the top.
Add insulation to the exterior of the plywood box.