Spray Foam Insulation Vaulted Ceiling

What is going on with vaulted ceiling. Closed cell foam ceiling insulation in a vaulted ceiling offers substantial advantages over open cell. 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.

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A cathedral ceiling is often difficult to insulate as they leave very little room for ventilation which is needed to keep the insulation dry.

Spray foam insulation vaulted ceiling.

Cathedral ceilings spray foam insulation. Insulating a cathedral ceiling with foam it green. If you re concerned about how you should be insulating cathedral ceilings icynene spray foam insulation is the ideal choice since it can aid in early detection of situations such as roof leaks and wind driven moisture intrusion icynene spray foam ca be applied to insulate any space or unique angle. Check out the overhead project video to get some tips and techniques to make this project easier.

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. The higher r value reduces condensation when moist interior air hits the now less cold ceiling vice versa in summer with humid outside air. There is a major difference in spray foam insulation and sealing with spray foam insulation.

Foam it green spray foam bonds overhead. Treat your cathedral ceiling just like a wall with a different angle. However if you are determined to build an unvented roof then i think that closed cell foam insulation is a better choice. Foil faced iso board can be cost effective insulation for finished attics and cathedral ceilings.

In most cases however insulation will not help prevent moisture. First closed cell foam has a 60 percent higher r value per inch than open cell 6 3 vs. Using foam it green spray foam insulation in your cathedral ceiling can give you much. Spray foam is a very expensive option however.

It does not look sealed to the outside at the ridge. One of the best options would be spray foam insulation here s why. Foam board insulation would be a more economical especially if you are supplying the labor see photo.

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