One of the biggest benefits of open-cell foam is that it expands so much after it has been applied, meaning it can insulate hard-to-reach nooks and crannies in a home. These types of areas can be hard to insulate with closed-cell foam. Open-cell foam is excellent for soundproofing where a single application can completely fill the area between studs.
Open-cell foam is also much more affordable than closed-cell foam, however, this foam won’t insulate a house as well as closed-cell foam, so it’s not ideal for locations with extreme weather temperatures.
Closed-cell foam is the best choice for robust insulating where space is an issue, as it can achieve 2x the R-Value of open-cell inside a standard wall. Its rigid nature also adds to the structural integrity of the building and E84 fire-rated versions are available. The closed-cell also acts as a vapor barrier, so water and moisture will be less likely to get inside the home, and the foam itself is unharmed by water damage.
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There are two distinct types of spray foam insulation: open cell and closed cell. Closed-cell spray foam cures into a hard, rigid state whereas open cell cures with a spongy, softer feel to it. In terms of R-values, closed-cell spray foam is close to R-7 per inch and open cell around R-4 per inch. Also, closed-cell becomes an air barrier at only 1” of application. Another big difference between the two is that open-cell is water permeable and closed-cell is not.
Yes, spray foam is safe. Some people can be sensitive to the fumes that come from the installation process. This process is known as off-gassing, which is why we recommend that occupants vacate the home once the spraying has begun and for a period of 12-24 hours after it ends. This will allow for the foam to be fully off-gased, and afterward, the home will be completely safe to live in.
If undisturbed and shielded from direct sunlight, spray foam should last the lifetime of the structure. It does not break down, so it lasts indefinitely.
Have any questions about the foam we spray? View the technical specs below to see various info!
Gaco OnePass Low GWP F1880 (pdf)
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