But with spray foam ventilation is not an issue.
Does a finished attic need to be vented.
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.
Control of ice dams moisture accumulation and heat gain can be successfully addressed by both vented and unvented attic or roof design.
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.
There was ridge vent originally installed but sealed up with spray foam closed cell.
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.
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.
Permanent stairs carpet heat ceilings drywall completely finished.
However the designs need to be climate sensitive.
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.