Insulation spray foam Barrels closed cell / open cell

Certified Insulation spray foam drums come in 450kg sets (Part A ISOCYANATE 250kg + part B polyurethane 200kg)when they touch they become foam and it expands to isolate the walls, it gives you the best air seal, the R value for closed cell is 7, and for open cell the R value is be 3.5. Each set covers about 4000 board feet which is 4000 sqft at 1 inch thickness.

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