Foam-Lok™ Open Cell Spray Foam

Our most affordable foam insulation.
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Our Open Cell Spray Foam is suitable for almost any use in a residential situation.

We typically recommend the product in above ground walls and attics. The product is relatively low-cost and is, for all intents and purposes, an air barrier.

Residential Applications:

  • Attics — when adequate space is available. 7”-8” (R-26 to R-30) is ideal for most areas of WNY. If less space is available, we would recommend our closed cell foam to achieve the needed R-value. Note that in certain counties of our service area where winter climate is colder, we would recommend a vapor barrier paint on open cell foam roofline applications. Generally, this would include counties inland from lakes Erie and Ontario — Wyoming, Cattaraugus, Allegany, and Genesee counties.
  • Walls — 5” of space is recommended. The product can be used in 2x4 walls, but we can reach the ideal R-value with closed cell foam.
  • 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.
  • Basement Rims
  • Sound attenuation

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

Compare Open Cell and Closed Cell foam


Open Cell Foam

3.7/Aged R-value per inch of depth
  • Vapor retarder
  • Structure: Soft like angel food cake
  • Less expensive (Requires less material to produce)
  • Contact us for a quote today.

Closed Cell Foam

6.8 /Aged R-value per inch of depth
  • Vapor barrier
  • Structure: Almost as hard as wood
  • More costly (Requires more materials to produce)
  • Contact us for a quote today.


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

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