It is characterized by its more rigid feel and additional strength relative to typical ½ pound open cell products, although it does not provide nearly as much rigidity and strength as closed cell foam and should not be used in place of closed-cell for these reasons. The R-value is 5 per inch due to the additional “insulating material” instilled during the manufacturing process. Whereas open cell spray foam contains a half pound of insulating material per cubic foot, and closed-cell foam contains 1.7lbs to 2.0lbs per cubic foot, Go Green Solution’s hybrid foam contains 1.2 pounds of insulating material per cubic foot. This 1.2lb open cell foam exhibits similarly excellent air-barrier characteristics of closed cell insulation but less ability to retard the flow of moisture.