Cathedral Ceiling Insulation Detail

While fiberglass insulation is an excellent and effective product for insulating most building cavities in areas where there is extra risk of trapping moisture and thus rot or mold infections such as crawl spaces and cathedral ceilings where roof venting may be absent or minimal we prefer to use closed cell foam insulation products or spray.

Cathedral ceiling insulation detail.

Insulating cathedral ceilings can be quite challenging. Minimize penetrations to the ceiling and especially avoid recessed ceiling lights which have been the cause of numerous moisture problems in cathedral ceilings with or without vent channels. 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.

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. Vent channel separated from the insulation by a foam cardboard or plywood baffle and provide balanced. Above the insulation leave a 1 1 2 in. Then insulate below with fiberglass or cellulose add a vapor retarder and your finish ceiling.

Yes a cathedral ceiling detail would be very similar but the challenge of many cathedral ceilings is the added structural elements electrical boxes and the desire for wood board ceilings all which start compromising the drywall layer which in your detail is used at the air barrier. Attic trusses typically have a sloping ceiling. I m in the early stages of building an amazing workshop to showcase tools over at tool box buzz and shop projects here at hci.