Insulating Finished Attic Knee Walls

In this case the area behind the knee wall will be uncomfortably hot or cold.

Insulating finished attic knee walls.

The sloped roof creates a small space that can hardly be use. In finished attic rooms with or without dormer insulate 2a between the studs of knee walls 2b between the studs and rafters of exterior walls and roof 2c and ceilings with cold spaces above. 1a attic access door. If only the living space will be insulated wrap the insulation around the room s walls and ceiling and then continue along the floor of the non living space.

Knee walls are half walls built into areas where a full sized wall will not fit such as finished attic crawlspaces. Added bonus the floor of this knee wall leaked too so there is a line of foam just above the floor joist. 2d extend insulation into joist space to reduce air flows. 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.

Unlike traditional walls with two finished sides. Blown insulation in the knee wall and top attics. There are two basic ways to insulate a finished attic. We prefer cellulose but we use fiberglass sometimes too.