Spray Foam Insulation Cathedral Ceiling

First closed cell foam has a 60 percent higher r value per inch than open cell 6 3 vs.
Spray foam insulation cathedral ceiling. Using foam it green spray foam insulation in your cathedral ceiling can give you much. Insulating a cathedral ceiling with foam it green. However if you are determined to build an unvented roof then i think that closed cell foam insulation is a better choice. Treat your cathedral ceiling just like a wall with a different angle.
In most cases however insulation will not help prevent moisture. Foam it green spray foam bonds overhead. A cathedral ceiling is often difficult to insulate as they leave very little room for ventilation which is needed to keep the insulation dry. The higher r value reduces condensation when moist interior air hits the now less cold ceiling vice versa in summer with humid outside air.
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. Closed cell foam ceiling insulation in a vaulted ceiling offers substantial advantages over open cell. Check out the overhead project video to get some tips and techniques to make this project easier. Foil faced iso board can be cost effective insulation for finished attics and cathedral ceilings.
The new workshop will be located over my garage in an area that was framed using attic trusses when we built the new house. High density urethane spray foam provides an airtight seal and high r values making it a good choice for unvented cathedral ceilings. Foam board insulation would be a more economical especially if you are supplying the labor see photo. Cathedral ceilings spray foam insulation.
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. Attic trusses typically have a sloping ceiling.