How Spray Foam Insulation Works
Spray foam insulation forms a barrier that creates airtight seals in ceiling cavities to prevent air exchange with the outdoors. Unlike normal types of insulation, spray foam seals even the tiniest gaps. It does not sag or compress over time. This foam can be sprayed into an open cavity, like in new construction, attics, crawl spaces and rim joists. Find out in this infographic how spray foam insulation works.