Does A Finished Attic Need To Be Vented

However the designs need to be climate sensitive.

Does a finished attic need to be vented.

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. The choice of the venting approach is up to the designer. 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. But with spray foam ventilation is not an issue.

Now we use attic ventilation when we use products like fiberglass because we have to manage the moisture. That is now a conditioned part of your house just like any room in your house. 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. 5 year old house finished attic.

Control of ice dams moisture accumulation and heat gain can be successfully addressed by both vented and unvented attic or roof design. There was ridge vent originally installed but sealed up with spray foam closed cell. Both vented and unvented attic roof designs can be used in all hygro thermal regions. 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.

Permanent stairs carpet heat ceilings drywall completely finished.