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Closed Cell Spray Foam

Closed cell is denser which prevents moisture from entering the insulation and has a higher R-value than open cell foam. 

Open Cell Foam

Open cell is less dense than closed cell but less is needed as it expands substantially. It has a lower R-value but is a great sound insulator compared to  closed cell foam. 

What is R-Value?

According to, R-value means resistance to heat flow. The higher the R-value, the greater the insulating power.  One of the biggest factors in maintaining the R-value is the way the insulation is installed. 

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