SPF- Reliable, Long Running & Affordable

Spray Polyurethane Foam (SPF) has been used as a roofing and insulation material for over 45 years. During this time, foam roofing systems have proven themselves through comprehensive and independent studies to be dependable, long lasting, and extremely affordable.

SPF can be applied to several roofing substrates. This includes concrete, zinc, wood, dichromatic roof, metal, etc.

Here is how it works!

Sprayed Polyurethane Foam (SPF) is a combination of isocyanate and polyol. These two components are fed through a proportioner that allows control heating. Both materials are then pumped through a heated hose to a specialised spray gun, mixed and spray applied.

Sprayed polyurethane foam is applied as a liquid using plural-component spray equipment. It then expands approximately 30 times its original liquid volume to form a hard, closed cell monolithic roof surface. The Polyurethane Foam dries within seconds after applied to the roof surface. Its expansion results in a weather tight roofing membrane that is fully adhered to the substrate. Because of polyurethane’s light weight, it adds little additional weight to the structure and is often used in remedial applications.

Once the SPF has been applied to the proper thickness and finish specifications, a protective layer of elastomeric coating or gravel is applied. This protective layer produces a durable weather resistant surface that can be walked on for normal maintenance.

Polyurethane foam has a history of more than 40 years as a maintainable roofing medium. Polyurethane foam adds excellent insulation value to the structure and makes a big difference to the utility bills.

Spray Polyurethane Foam Roofing

Why Spray Tech’s Polyurethane Foam?

Foam roofing has many advantages over traditional roofing methods:


Polyurethane foam is applied as a liquid, creating a single monolithic membrane that covers the entire roof. There are no seams or joints, which are the source of the majority of leaks in traditional roofs.


Foam roofing typically weighs around 50 lbs. per square, versus 800 lbs. for a built-up roof and 100 lbs. for ballasted single-ply roofs.


Foamed roofs require a minimum of upkeep, creating little waste and have an indefinite lifespan.


The foam can be sprayed onto virtually any surface, irregularly shaped roofs, and protrusions are readily taken care of.

Thermal Insulation:

SPF has the best insulating properties available for commercial construction today.

Spray Polyurethane Foam Roofing

Insulation Properties of SPF systems

Sprayed polyurethane foam has an R-value of 7.14 per 1 inch thickness, enabling it to provide more thermal resistance with less material than any other type of roofing insulation.

Foam roofing produces energy savings of 30% or greater when compared to the alternative roofing systems. The cost of the roof can be quickly recovered in less than 5 years, simply through these energy savings alone.

Hire one of Spray Tech’s SPF professionals today!