Foam-Lok™ Closed Cell Spray Foam

A smart business decision you can't see but feel every day.
Learn MoreRequest Quote

Energsmart is WNY’s most experienced for closed cell commercial applications.

Foam-Lok™ Closed Cell foam can be used virtually anywhere in a commercial application. 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.


Commercial 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 R25-R30, which needs as little as 4” of cavity space when using closed cell foam.
  • Walls – when 2×4 or less framing is available. We can reach R-17 with just 2.5” of space. This would typically apply to existing commercial buildings or renovation projects.
  • Cavities must be open on one side. If the walls in your existing building don’t have 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.
  • We have installed this product in a number of retail and restaurant rooflines where the product is left exposed. The product can be sprayed somewhat flat (dimpled). Typically we spray a thermal barrier on the foam for Code, which is then followed by an interior paint color of the customer’s choosing.
  • The product can be sprayed to the exterior side of the building. In these applications it is typically covered with a brick face with an air gap in between the brick and the foam.
  • The product is often used as a combination roof replacement and insulation when installed to the exterior side of the roof. See our Roofing Foam section. This is for low-slope roofs only.
  • Trucks and trailers

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

Compare Closed Cell and Open Cell foam:


Request a quote
Ask a question
Leave a comment

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