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In this On the Job video, Larry Janesky and his team at Dr. Energy Saver, insulate the existing metal roof of a commercial building using spray foam roofing technology.
According to Larry, spray foam roofing is one of the greatest developments in the insulation and roofing industry.

The spray foam used in this job is different from the one used to insulate the interior of a building, as spray foam roofing bears a density of 3 pounds per cubic foot, while closed cell spray foam insulation used internally is only 2 pounds per cubic foot, and open cell spray foam insulation is only ½ pound per cubic foot.

The application of spray foam roofing is an art. To install, it takes several passes (multiple coatings) of spray foam, applying the material seamlessly across the roof and in as little as 90 seconds the material is hard enough to walk over.
Applying spray foam on the roof creates a monolithic and seamless surface — keeping the air from leaking out of the building and water from leaking in.

Also, because the material is applied on top of the roof, the roof itself is protected against overheating, freezing and other natural elements. This material is an excellent solution to the never-ending cycle of expansion and contraction (temperature swings) of a steel roof and ultimately prevents leaks from the roof.

After the application is finished, the roof is completely transformed with 2 inches of spray foam (R-Value of 13.8) and a water tight cover that will last for many years.

Visit our website to learn more about spray foam roofing or to schedule a free estimate for insulation!

6 Comments

  • Dr. Energy Saver January 17, 2014 at 3:21 pm
  • aguyandhiscomputer February 4, 2014 at 4:28 am

    Could you do this on a traditional pitched family home (assuming you don’t
    mind the aesthetics) ? Would it help with heat radiating into the attic?

  • Larry Janesky February 7, 2014 at 2:21 am

    Yes, you can. It has been used for many years on residential and
    commercial roofs – pitched and flat.

  • Ted Kidd April 5, 2014 at 5:55 pm

    Yes, you can. It has been used for many years on residential and
    commercial roofs – pitched and flat.

  • John McGilvary September 7, 2014 at 5:33 pm

    I have a flat plywood/tar-paper roof over a family room/garage are.
    I notice water pools on the top.
    Does the foam -auto-level to prevent this, or just allow the water to
    evaporate?
    This process seems like a great idea. Is there a price per sq.ft. to help
    estimate?
    Any dealers in Miami, Fl you know?

  • David Ritko September 18, 2014 at 11:13 pm

    I saw the metal panels flexing a lot as the foam was being applied. If the
    building needs some work on the roof (i.e. HVAC work) would this flexing
    create cracks in the foam and need re-application?

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