Knee Wall Door Insulation

From the inside of the attic a knee wall looks like the image to the left.

Knee wall door insulation.

Building a concrete block retaining wall. As you can see in the image below the joists run perpendicular to the wall which means the joists run below the floor of the living space. The attic tent is the ultimate attic access insulation cover ever invented attic stairs scuttle holes knee wall doors and full size doors its primary design is to stop air infiltration between the home and attic the most common medium for wasting costly residential energy during both hot and cold seasons. Rake walls it s easier to handle than plywood or thermo ply and still gives you an r 19 r121 assembly.

Anytime i conduct an energy audit of a cape cod or 3 story colonial or a salt box i know that a good chunk of the homeowner conversation and audit report will deal with the knee walls. Knee wall doors provide access through the knee walls to the unconditioned parts of the attic. Ge thru the wall heat pump. Although kneewalls can help turn attics into living space they often present insulation challenges most builders install fiberglass batts between the studs and some type of blown insulation between the floor joists.

Then cover that same area with an r 8 fsk affixing it using cap nails. Kneewalls short walls under sloped ceilings are common in story and a half homes and in bonus rooms above garages. Knee wall jacket door ana white access installing attic walls with doors you marwin company energy saving products storage built ins 58. Knee walls are among the biggest air leakage and heat loss sources in home in part because they are such a pain in the rear to insulate and air seal properly.

If the door doesn t have these weather strip it to provide a tight seal and make sure the latch pulls tightly against the frame. In tight attics or odd shaped wall conditions i e. You can buy knee wall doors that have built in insulation and weather stripping. Another alternative for knee walls conditions is to remove and reinstall the batt insulation to qii standards.