Using foam it green spray foam insulation in your cathedral ceiling can give you much.
Spray foam insulation vaulted ceiling.
High density urethane spray foam provides an airtight seal and high r values making it a good choice for unvented cathedral ceilings.
Putting the exhaust higher than the intake helps but the more space between the exhaust and intake the better.
Foam it green spray foam bonds overhead.
However if you are determined to build an unvented roof then i think that closed cell foam insulation is a better choice.
What is going on with vaulted ceiling.
Cathedral ceilings spray foam insulation.
Treat your cathedral ceiling just like a wall with a different angle.
First closed cell foam has a 60 percent higher r value per inch than open cell 6 3 vs.
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.
One of the best options would be spray foam insulation here s why.
A cathedral ceiling is often difficult to insulate as they leave very little room for ventilation which is needed to keep the insulation dry.
Foam board insulation would be a more economical especially if you are supplying the labor see photo.
Spray foam is a very expensive option however.
There is a major difference in spray foam insulation and sealing with spray foam insulation.
In most cases however insulation will not help prevent moisture.
The higher r value reduces condensation when moist interior air hits the now less cold ceiling vice versa in summer with humid outside air.
Insulating a cathedral ceiling with foam it green.