Vaulted Ceiling Insulation Air Gap

Cathedral ceilings are a feature in many homes that add to value to the house because the high ceiling tends to make rooms look larger.

Vaulted ceiling insulation air gap.

These are brand new condominiums and we ve insulated according to the builders specification with fiberglass in the walls and we re going to be blowing the flat of the attic space with cellulose along with the rafter spaces in the cathedral ceiling. Vented cathedral ceilings can be difficult to insulate well. Cathedral ceilings built using 2 x 12 roof rafters allow enough space for the fiberglass batt insulation and a 1 5 gap for ventilation. A cathedral ceiling is a sloping and pointed ceiling which is usually high and open.

The component that creates the gap is called a variety of things including a ventilation baffle a ventilation chute a ventilation channel or a product such as proper vent. This type of roof assembly is designed so the air can flow up the soffit vent through an insulation baffle pass through the 1 5 gap between the insulation and roof sheathing then exit through a ridge vent. Ventilation channels maintain an air gap between the insulation and the roof sheathing. Air sealing and insulating.

It provides an open airy look and feel to the room and they are often in demand among home buyers. Insulated cathedral ceilings are a relatively recent phenomenon. In a vaulted ceiling however the only fresh air route lies between the insulation and the underside of the roof deck.