Open cell / Green Building & Sustainable Home Renovation Information & Advice

Closed cell spray foam insulation being applied to basement walls
Insulation and soundproofing

How to choose between open cell and closed cell spray foam and which is best?

...open-cell and closed-cell spray foam? Both open and closed cell spray foam are chemical-based insulation products that expands upon application when sprayed onto surfaces such as the sheathing between studs. The fundamental difference between open-cell and closed-cell spray foam lies in their structure: Open-cell spray...