While most closed-cell spray foams will be above 6.0 per inch, open-cell is much lower at 3.6 to 3.8 per inch range. Open-cell will expand as soon as its applied, making it the perfect foam for ...

Closed-cell spray foam becomes rigid once applied, providing superior insulation open-cell spray foam. It was initially used to stabilise deteriorating roofs.

Philippa from Wiltshire also had open cell spray foam fitted in her loft in 2021, with the £8,662 cost covered by the Green Homes Grant scheme. She recently accepted an offer from first-time ...

The California Energy Commission (CEC) now recognizes open-cell spray foam as an accepted insulation in its 2008 Building Energy Efficiency Standards. Open-cell spray foam joins closed-cell spray foam ...