How To Insulate A Cathedral Ceiling With No Attic

You may also insulate your roof to help regulate the temperature in an attic that is a part of your living space.

How to insulate a cathedral ceiling with no attic. Seal all ceiling openings. Insulating a vaulted ceiling is similar to insulating exterior walls with one notable difference. Tips for insulating a cathedral ceiling take care to seal ceiling penetrations such as around light fixtures or ceiling mounted hard wired smoke detector.

Then insulate below with fiberglass or cellulose add a vapor retarder and your finish ceiling. Vaulted ceilings require venting as well as insulation. Insulate a cathedral ceiling by ensuring there is no opportunity for drafts to get into the room.

Check the joists and wall plates for any holes or openings. If you re installing insulation directly under the roof like in a cathedral ceiling or attic ceiling make sure to leave about a 2 gap between the insulation and the roof sheathing. R value insulation receives a rating.

Insulating the roof is a priority if the ceilings of your home happen to be part of the roof deck as is the case with cathedral ceilings. You ll want a tight ceiling air barrier with no air leakage into the cathedral ceiling a critical detail for all cathedral ceiling designs. If you don t there s a good chance your roof will end up like this.

That is create a vent channel above the insulation with low and high vents. Other cathedral ceiling insulation tips. My roofing contractor can install shingles and add more insulation on that portion of the roof but the cost is high.