Foam-Lok™ Closed Cell Spray Foam

The best you can get for energy efficiency and comfort.
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Closed Cell Spray Foam can be used for almost any residential project.

Due to its higher cost relative to open cell foam, closed cell is used when moisture is a concern or if limited space is available.

Residential Applications:

  • Attics — when less rafter space is available. When rafters are less than 7” deep it’s difficult to reach desired R-values with lower priced open cell foam. In our climate, we target R-25 to R-30, which needs as little as 4” of cavity space when using closed cell foam.
  • Walls — when 2x4 or less framing is available. We can reach R-17 with just 2.5” of space.
  • Cavities must be open on one side. If you live in an existing home without exposed cavities, our Retrofit Foam may be able to be installed. Retrofit foam is an open cell foam.
  • Crawl space walls and other areas where it is difficult to control moisture. Closed cell foam is a vapor barrier.
  • Metal and other moisture impermeable substrates.

Click here for the Code Reports and Technical Data Sheets for our closed cell spray foam.

Compare Closed Cell and Open Cell foam:


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Call Us:
1-888-WNY-FOAM (969-3626)
(716) 775-8035
(716) 775-8057 fax

Mailing Address:
Energsmart Foam Insulation
483 Sawyer Avenue
Tonawanda, NY 14150