Structure of a Foam Roof

Structure of a Foam Roof

Spray Polyurethane Foam (SPF) is a spray-applied insulating foam plastic. Two chemical liquid components which are Iso and Resin are combined as they pass through the spray gun and contact the surface of the roof. As both components chemically react with each other, they expand by 20 times in volume and form a solid, strong Foam material with a compressive strength of 40-50 pounds per square inch and a density of 2.0-3.0 pounds per cubic foot.

  • Spray Polyurethane Foam (closed cell)
  • Elastomeric Base Coat is applied immediately to protect the SPF.
  • Elastomeric Top Coat is applied to provide long lasting durability.
  • Granules are minerals placed on the top coat which is added protection from damage.


  • A waterproof membrane
  • Insulation
  • A sound barrier
  • An air barrier
  • Fire retardant
  • Used in many structural properties
  • Energy efficient
  • Long Lasting
  • Lightweight
  • Seamless
  • Flexible
  • Renewable
  • Sustainable
  • Affordable

Specialized equipment is used to apply the Spray Polyurethane Foam system and proper technical training is necessary to receive the best results.

Polyurethane Foam can do it all with its multi-tasking abilities. In buildings, the insulation provides as an air barrier and is also moisture resistant. In roofing, it completely insulates the roof by sealing gaps and cracks and also adds strength to the entire building structure.

Polyurethane Foam is sustainable and renewable, with proper maintenance and recoating at 15 year periods, the roof will last the rest of the life of the building. The Elastomeric white topcoat meets "Cool Roof," Energy Star, and LEED Certification requirements.

Benefits of Foam


Spray Foam Insulation is the best material when it comes to stopping water leaks, strengthening your roof, saving money on energy bills, and sealing a building from air and moisture intrusion.


  • Eliminates water leaks
  • Adds strength to the building structure
  • Reduces heating and cooling usage
  • Save on costly energy and utility bills
  • Helps maintain a comfortable, constant, temperature throughout the building
  • Stops air and moisture infiltration
  • Seals gaps and cracks
  • Eliminates water ponding


Sprayed Polyurethane Foam has an R-value of 6.6 per 1-inch thickness. R-value is the measurement of thermal resistance so with such a high R-value, moisture cannot penetrate the Foam membrane. Polyurethane Foam systems are used to insulate a wide variety of commercial, residential, and industrial buildings.

Energy Savings

Polyurethane Foam Roofing produces up to 30% energy savings on your energy bill.


Polyurethane foam is applied as a liquid, creating a monolithic membrane that covers the entire roof. Eliminating seams or joints, which is the source of the majority of leaks in traditional roofs.

Roof Renewability

Re-coating the Foam roof for renewability

A great advantage of a Foam roof is that it can be renewed by recoating the roof instead of replacing it like other roof systems. The time when a roof has to be recoated is between 10 to 15 years after the Foam application.

This time can be extended by increasing the thickness of the elastomeric coating system during the initial foam application. The addition of mineral granules on the top pass of the elastomeric coating system further increases the life of the coating system.

The elastomeric coating protects the foam from the sun’s ultra-violet radiation which is the wearing component of the Foam system. When you see the elastomeric coating beginning to wear thin, it will need to be recoated but the foam does not need to be replaced.

With proper recoating periods and maintenance, a Foam roof will last the rest of the life of the building.

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