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.
Available in 3 sizes to fit most any size or brand of pull down ladder.
Because of this heat is transferred between the.
Treat the attic stairs access as you would an opening to the outdoors.
Measure the size and height of the stairs from the attic.
Cut sides and top from sheets of 3 4 foam board with a utility knife.
To avoid wasting money on energy you should insulate your attic stairs.
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.
To insulate fold down attic stairs.
Assemble the sides of the box with metallic duct tape.
The stair cover fits between trusses.
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.
At least my diy attic stair cover has insulation on all four sides and a nice tight seal.
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.
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.
Attach the foam box to the floor with metallic tape.
The whole project cost about 30 for materials and took about 2 hours to complete.