In this case the area behind the knee wall will be uncomfortably hot or cold.
Insulating attic walls roof.
To meet all three goals insulating your finished attic ventilating the roof and maximizing headroom use a combination of dense batt insulation rigid foam sheeting and air chutes.
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.
Most codes require a specified minimum amount of headroom and it s tough to meet this requirement when insulating a finished attic especially since most codes require insulation equal to r 38 or more.
According to home advisor insulating your attic can cost between 1700 to 2100.
There are two basic ways to insulate a finished attic.
Measure the depth of the wall framing which is the width of boards that form the attic roof structure.
Choose the fiberglass blanket or batting product that will provide the r value your house.
Type and material of your insulation.
So it s time to pay close attention to what s happening up there.
Before insulating vaulted attic walls you must provide an unobstructed route from the soffit vents to an exit vent to prevent damage to the roof from moist hot air.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.