Best Way To Insulate Cathedral Ceiling

What is the best way to insulate a cathedral ceiling with exposed 2x6 t g boards above the rafters.

Best way to insulate cathedral ceiling.

Although the gba website already contains many articles on the topic we continue to receive frequent questions about the best way to insulate a cathedral ceiling. I m in a 6 000 degree day climate. Foil faced iso board can be cost effective insulation for finished attics and cathedral ceilings. I hope to finish the ceiling with pine boards.

Put the baffle between the joists starting where they join at the exterior wall plate. Assuming the rafters and 2x6 boards are properly sized to handle the roof loads a simple cost effective solution is to use a preassembled panel of expanded. It is also one of the most expensive and most building inspectors will not allow it to be left uncovered for fire code reasons. One of the best options would be spray foam insulation here s why.

If you are looking for the best way to install your cathedral ceiling then there are some mistakes you ll have to avoid in order to prevent heat or. So far it seems the best approach is to have 2 3 inches of closed cell foam sprayed directly into the rafter bays on the underside of the zip i can t afford to have 8 inches of spray foam. In general closed cell foam is the best choice for unvented cathedral ceilings. Attach the baffles to the interior of the joists using a staple hammer and cover the wall plate area completely.

Cellulose offers much greater insulating power per inch and compared to fiberglass provides more insulating room because ventilation space is not required. A cathedral ceiling is often difficult to insulate as they leave very little room for ventilation which is needed to keep the insulation dry. A bill zoeller an architect with steven winter associates in norwalk conn responds. Insufficient traditional insulation can lead to drafts and air leakage thanks to gaps and holes in where the insulation is installed.

This means that in a limited space such as a cathedral ceiling cellulose offers a much higher stated r value. Then i d install rockwool bats to bring the insulation flush with the rafters.