Insulating Sloped Ceiling Finished Attic

As you can see in the photo above and the 3d model below the attic trusses create a section of sloped ceiling and flat ceiling much like you d get in a house with a cathedral ceiling.

Insulating sloped ceiling finished attic.

Similarly a flat ceiling takes out the cathedral style slope of attic ceilings with joists that run parallel to the attic floor and are attached to roof rafters. Without properly ventilating the roof your finished space can be just as unpleasant as an unfinished attic. Without properly insulating your finished attic room will also be cold in the winter. 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.

Since parts of a finished attic are usually very close to the roof insulation often blocks proper ventilation that is needed under a roof structure. 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. In these designs take out attic. 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.

Attic trusses typically have a sloping ceiling cathedral that poses a different insulating solution. Insulating a sloped ceiling in a finished attic can be done from the inside or by installing foam and new roofing on the outside. If the attic is finished with a sloped cathedral ceiling adding extra insulation is much more difficult.