Insulating Cathedral Ceiling With Foam Board

These should have straightforward framing with no skylights and with direct access to soffit and ridge vents.

Insulating cathedral ceiling with foam board.

If you decided to use a rigid foam board to help insulate your cathedral ceiling you would install the board on top of the roof sheathing and underneath the plywood at the top of the roof. Attic trusses typically have a sloping ceiling. By the diy experts of the family handyman magazine the foam solution to ceiling moisture problems. Foam board insulation would be a more economical especially if you are supplying the labor see photo.

A less expensive alternative is the more traditional vented cathedral ceiling insulated with fiberglass cellulose or open cell foam. Insulating cathedral ceilings can be quite challenging. In most cases however insulation will not help prevent moisture problems. This is best for simple cathedral ceilings that are easy to ventilate.

Rigid boards are manufactured from either. Regular ceilings are likely to be under attics with either batt insulation between the joist bays or in some cases rigid insulation between the rafters. 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. Spray foam is a very expensive option however.

Rigid foam board installation in the case of a cathedral ceiling involves installing three different layers that are each 1 5 inches thick according to the procedure discussed in this article appearing in fine homebuilding. Solve moisture and rot problems in insulated cathedral ceilings with closed cell foam ceiling insulation.