Commercial Roofing and Roof Repair Systems
Serving Northern California, Montana, Idaho and Eastern Washington

  • Mast Roofing
    Flat Roof Before Restoration
  • Mast Roofing
    Flat Roof Completed by Mast Roofing
  • Mast Roofing
    This aging membrane by others no longer serviceable.
  • Mast Roofing
    Detail of hatch cover and aging membrane roof Before.
  • Mast Roofing
    Hatch cover and roof better than new.
  • Mast Roofing
    Foam envelops exhaust flashing forming water tight seal.
  • Mast Roofing
    A/C platform permanently sealed with foam.
  • Mast Roofing
    Shooting Foam over new Cricket to divert water.

Spray Polyurethane Foam Roof Coatings

Request your FREE - No Obligation Roof Estimate Today!

Spray on the savings.

Sprayed Polyurethane Foam (SPF) roofing is one of the most cost-effective, environmentally friendly, durable roofing systems available today. MAST Roofing is able to deliver 30 percent or more in energy savings per year with an SPF roofing topped with one of our reflective coatings. MAST Roofing customizes each SPF Foam and Coating System to your specific geographical location and climate conditions to maximize performance.

SPF Application
Recommended for application over these surfaces:
  • EPDM/BUR/Mod-Bit
  • Concrete
  • Metal
  • Wood
  • Composite Decking

What is Sprayed Polyurethane Foam?

SPF is a closed cell roofing and insulation material that both waterproofs and insulates. Sprayed Polyurethane Foam has the highest R-value of any insulation material.
SPF can help make your roof leak free and at the same time add exceptional R-value that lowers your energy costs!

Benefits of a Sprayed Polyurethane Foam (SPF) Coating by MAST Roofing:

  • Stops Leaks!
  • Energy savings in both heating and cooling can repay your investment.
  • Elimination of air infiltration—the number one cause of energy loss.
  • Insulation value of R-6.5 per inch. In practice SPF accomplishes much more than an R equivalent of other insulation due to its ability to stop air movement through the layer.
  • Increased structural strength without significant increased weight.
  • Correction of damaged substrate and/or poor drainage.
  • A substantial barrier to withstand the harshest environments.
  • Resistance to hurricane-force winds.
  • Reduction of sound transmission.
  • Easy application to most existing roof surfaces.
  • SPF bonds permanently to existing roof providing superior waterproofing.
  • Serviceability is restored by re-coating, and warranties can be extended.
  • Tear-off and removal of existing roof are usually not necessary.
  • Federal tax rebates, credits, and deductions may apply: check with your accountant, utility company, and for details.
  • Roof restoration may be expensed rather than depreciated over years—again check with your accountant.

Spray Polyurethane Foam can also be applied to interior walls for even more energy savings.

Conklin Roofing Systems

Featured Customer Review

I had Mast Roofing put a foam roofing system over the existing roof of my 10,000 sq ft shop. The shop had always given us fits with leaks and it didn't seem that anything would work. Well, we have solved that problem because of Mast Roofing. And, we even have noticed a difference in our heating bills.

I highly recommend Mast Roofing. Thank you Samuel Mast.

Daniel L. Hagman
Hagman Timber Company Inc.
Kingston, ID
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Customer Reviews Here


Energy Star

Sacramento, CA Energy

Case Study


Tax Incentives

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Serving Northern California, Montana, Idaho and Eastern Washington

MAST Roofing provides professional Commercial and Industrial Roofing Systems and Restoration for;

Northern California including; Redding, Red Bluff, Chico, Paradise, Oroville, Sacramento, Yuba City, Marysville and surrounding communities!

Montana including; Billings, Bozeman, Missoula, Great Falls, Helena, Kalispell, Columbia Falls, Whitefish, Libby and surrounding communities!

Idaho including; Pocatello, Sun Valley, Sandpoint, Boise, Coeur d'Alene, Idaho Falls, Lewiston, Moscow, Twin Falls, Nampa, Caldwell and surrounding communites!

Eastern Washington including; Spokane, Moses Lake, Pullman, Richland, Kennewick, Pasco, Tri-Cities, Yakima, Walla Walla, Ellensburg, Wenatchee, Ritzville and surrounding communites!