Vented Cathedral Ceiling Insulation

Straight bays 2x12 24 o c.

Vented cathedral ceiling insulation.

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. Have a newly framed vented cathedral ceiling to insulate. Then insulate below with fiberglass or cellulose add a vapor retarder and your finish ceiling. Should i install an air barrier in the cathedral ceiling above the insulation.

You ll want a tight ceiling air barrier with no air leakage into the cathedral ceiling a critical detail for all cathedral ceiling designs. A cathedral ceiling is a sloping and pointed ceiling which is usually high and open. It provides an open airy look and feel to the room and they are often in demand among home buyers. The current plan is to use batts of some kind in the bays take care to air seal the interior surface avoid penetrations air seal the vent channel too bays fully sealed double prime the inside surface for vapor resistance.

In fact as far back as 1975 ncima standard n 301 75 stated. Solar age magazine articles on renewable energy energy savings construction practices best practices guide to cathedral. Although many view this as a new method as stated previously many contractors have been doing this for years. That is create a vent channel above the insulation with low and high vents.

Does air movement wind washing through a vented cathedral ceiling cause heat loss through the insulation.