Insulating A Hip Roof Attic

Furring down the slopes can often be avoided by using high density closed cell foam.

Insulating a hip roof attic.

Insulating a finished attic there are two basic ways to insulate a finished attic. But the best solution is actually to insulate both the attic floor and the underside of the roof. These challenges go away if the entire roof is insulated typically by applying spray foam insulation to the underside of the roof deck. I would recommend that you install them the full length from the lowest part of the attic to where there is an adequate air space existing.

Insulating in and around your roof attic space also prevents long term damage from moisture build up or ice damming which results from the warm air trying to escape through the apex of the roof but instead heating up the snow. Additionally insulation serves as a way to enhance sound proofing on the uppermost envelop of your house. 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. This is a styrofoam shoot that you staple to the underside of the roof deck stopping the insulation from compressing against the underside of the roof and creating a 1 1 2 airspace for 4 to 8 long.

In this case the area behind the knee wall will be uncomfortably hot or cold. 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. In this way you prevent the heat from the rooms below escaping to the attic rooms above. 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.

Insulating the attic floor. At the same time the areas below the roof benefit from increased comfort both during the winter and the summer.