Does A Finished Attic Need To Be Vented

There was ridge vent originally installed but sealed up with spray foam closed cell.

Does a finished attic need to be vented.

Permanent stairs carpet heat ceilings drywall completely finished. Ridge vent install ridge vent even though there won t be any air flow space in the majority of attic i e except behind knee walls which when i really think about it is a good amount of space. You may not have heating ducts up there but it does not need to be ventilated. However the designs need to be climate sensitive.

Control of ice dams moisture accumulation and heat gain can be successfully addressed by both vented and unvented attic or roof design. Now we use attic ventilation when we use products like fiberglass because we have to manage the moisture. 5 year old house finished attic. The insulation is spray foam open cell directly on the underside of the roof deck min r19 and on the inside of the exterior walls.

That is now a conditioned part of your house just like any room in your house. Both vented and unvented attic roof designs can be used in all hygro thermal regions. With square foot living space at a premium many homeowners turn to their attics for a little extra room when the attic becomes part of the home to be heated and. 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.

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.