Even though the store bought attic stair covers boast an r value of 50 i doubt that s the case based on the lack of side insulation.
Diy attic stair insulation cover.
Measure the size and height of the stairs from the attic.
To insulate fold down attic stairs.
Treat the attic stairs access as you would an opening to the outdoors.
The whole project cost about 30 for materials and took about 2 hours to complete.
Assemble the sides of the box with metallic duct tape.
To avoid wasting money on energy you should insulate your attic stairs.
X 54 in 25 in.
You can air seal and insulate the attic stairs opening by building your own insulated cover box or purchasing a kit or pre built box.
Position the box over the stair opening in the attic.
The stair cover fits between trusses.
At least my diy attic stair cover has insulation on all four sides and a nice tight seal.
Regardless of the type of insulation you use for your attic access it is important to thoroughly air seal 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.
Studies show that the tiny gaps and cracks in between the stairs and under the attic door can cause hot or cold air leaking equivalent to a 5 square inch window.
Attic stairs especially drop down stairs are notorious for acting as large holes that leak hot or cold air out while bringing in undesirable cold or hot air in.
Because of this heat is transferred between the.
Attach the foam box to the floor with metallic tape.
Cut sides and top from sheets of 3 4 foam board with a utility knife.