Spray Foam Insulation: Open vs Closed Cell Spray Foam Insulation: Open vs Closed Cell

Spray foam insulation is a very popular choice for homeowners looking to insulate their homes. Spray foam insulation is easily found at your local home improvement store. You can install the spray foam insulation yourself with just a few tools and materials. 

There are two types of spray foam insulation: open cell foam and closed cell foam. Both of these types of spray foam can be used in insulating your home; however, there are a few differences you should be aware of. 

Open Cell Foam

Open cell foam is chosen most often because it is less expensive than closed cell foam. Therefore, you can insulate a larger area for less money by choosing open cell spray foam insulation. The drawbacks to open cell foam are that it is not very strong and doesn’t have an R-value as high as closed cell spray foam insulation.

Closed Cell Foam

Closed cell spray foam insulation is a much stronger insulation product. The major drawback to using closed cell foam is that it is more expensive. It is much denser than open cell foam and requires more material to insulate the same amount of space. This is why there is such a large price difference in the two insulation materials. Besides these drawbacks, closed cell spray foam insulation is very strong. It also carries a higher R-value and is resistant to air leaks and water vapor.

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