B233 (Roofing, Civil Engineering, Under Slab)
Designed for higher compressive strength requirements, including roofing. This closed-cell foam offers a compressive strength of 40 psi and a density of 3 lbs. per cubic foot (48 kg per cubic meter).
- R-value of 7 at 1 inch (ASTM C518)
- Compressive strength of 40 psi