The Green Cocoon Open Cell Spray Foam HD

Open cell spray foam insulation is cheaper per unit of R-value than closed-cell foams. Open cell does not provide all the features that closed cell foams do:

Open cell foams are lower in R value (3.8 vs. 7.0). Open cell foams have tremendous sound attenuating properties (STC 38 in a 2×4 wall assembly) and make for a substantial air-seal at greater thicknesses. Open cell spray foam is vastly superior in performance to fiberglass, and although more expensive, has a relatively fast pay-back period (ROI) over fiberglass.

Open cell foam may cost less than closed cell foam, but it has a lower R-value per inch, so a thicker layer is required. If the framing members are deep enough to accommodate your required R-value, open-cell foam may end up saving you money.

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Видео The Green Cocoon Open Cell Spray Foam HD канала The Green Cocoon, LLC