How To Insulate A Vaulted Ceiling

R value insulation receives a rating.

How to insulate a vaulted ceiling.

You ll need an hvac contractor to determine whether your heating system can handle the increased volume of a room with a vaulted ceiling. Seal all ceiling openings. If you want to insulate your cathedral ceiling properly then you need to develop another method of keeping in heat while avoiding becoming a target for mold and damp. Vaulted ceilings require venting as well as insulation.

Anything in the area to be vaulted will have to be relocated. Insulate a cathedral ceiling by ensuring there is no opportunity for drafts to get into the room. Bernice from midland ontario wants to know how to get more insulation into her vaulted or cathedral ceiling the common problem with structures like this that we call compact roofs is that there is not usually enough space for a lot of insulation and a lot of ventilation. You ll want a tight ceiling air barrier with no air leakage into the cathedral ceiling a critical detail for all cathedral ceiling designs.

Then insulate below with fiberglass or cellulose add a vapor retarder and your finish ceiling. Insulating a vaulted ceiling is similar to insulating exterior walls with one notable difference. In fact when the only space you have is that left by a 2x8 or even a 2x10 you really can t do a perfect job of both. Stand on a ladder and using a caulk gun seal any areas where there is visible wiring or plumbing.

If you decide to use a batting insulation on your ceiling then avoid another mistake and ensure that you caulk around the area thoroughly. That is create a vent channel above the insulation with low and high vents. Also before you start the work consult a structural engineer to make sure the collar ties are in the right place to prevent the walls from. Calculate the r value of your vaulted ceiling based on the existing insulation.

Check the joists and wall plates for any holes or openings.