Knee Wall Attic Access Door Insulation

In tight attics or odd shaped wall conditions i e.

Knee wall attic access door insulation.

Knee wall doors provide access through the knee walls to the unconditioned parts of the attic. How to seal knee wall doors. 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. You can buy knee wall doors that have built in insulation and weather stripping.

An attic hatch also known as a scuttle hole is simply a panel in the ceiling that can be removed for access. Many knee wall doors have built in weather stripping and insulation. 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.

Energy star qualified r 5 rated knee wall door. We reduced the air leakage nearly 50 on this house in shaker heights without insulating the walls. Superb thermo insulating parameters r value 5 2 along with high air tightness keep heat loss to a minimum. Insulate the sloped ceiling.

A knee wall attic door is infamous for being leaky and all too often left without insulation. R 10 rated 2 1 4 thick foam filled doors available. These doors need to include thick insulation for example several layers of rigid foam glued to the back of the door a tight threshold good weatherstripping and a latch that pulls the door tightly shut. The knee wall access doors may be installed in right or left opening versions.

Another alternative for knee walls conditions is to remove and reinstall the batt insulation to qii standards. The knee wall access door dwk is intended to be built into l shaped walls. Despite both of these attic doors being easy to insulate many contractors don t do it. Pre hung on an exterior grade 1 1 4 x 4 9 16 door frame with q lon weather stripping.

As standard the door is provided with lining slats. Access doors need to be detailed like exterior doors. Added bonus the floor of this knee wall leaked too so there is a line of foam just above the floor joist. Blown insulation in the knee wall and top attics.

1 3 8 thick foam filled door.