Does A Finished Attic Need To Be Vented

Now we use attic ventilation when we use products like fiberglass because we have to manage the moisture.

Does a finished attic need to be vented.

Control of ice dams moisture accumulation and heat gain can be successfully addressed by both vented and unvented attic or roof design. 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. 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. Venting knee walls do you mean to take down the exposed insulation insert venting material to connect with vents to be cut into soffets reinsert insulation.

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. Both vented and unvented attic roof designs can be used in all hygro thermal regions. 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. There was ridge vent originally installed but sealed up with spray foam closed cell.

That is now a conditioned part of your house just like any room in your house. You may not have heating ducts up there but it does not need to be ventilated. 5 year old house finished attic. But with spray foam ventilation is not an issue.

However the designs need to be climate sensitive.