03/04/2024
Closed-cell spray foam is much stronger and has a higher R-value. The cells remain closed resulting in a rigid foam. Air is prohibited from entering the cells. This improves how well it works as insulation for your home or structure.
The R-value of closed-cell spray foam insulation is quite a bit higher than open-cell spray foam. It resists water and adds strength and rigidity.
https://irelandsprayfoaminsulation.com/closed-cell-spray-foam/