What is SPF?

Polyurethane foam is produced by a chemical reaction of a polyol and an isocyanate, in the presence of catalysts and other additives. The result is a rigid plastic that expands during the curing process and  forms a seamless layer of closed cell foam.  The “system” includes preparation of the substrate, as well as application of the foam and the elastomeric coating. This coating produces a weather-resistant surface that is strong enough to be walked on for normal maintenance.

Polyurethane foam can be applied to surfaces with irregular shapes and penetrations.  Applications include tanks, pipes, cold storage rooms and flotation devices. It’s  especially suited for roofing, since many applications can be applied again and again over the existing roof.  This can eliminate the need for costly tear-off of the old roof.

Polyurethane foams form monolithic, self-flashing surfaces that effectively seal against leaks. Further protection is achieved from the weather resistant, elastomeric coating applied over the foam. The foam can be sprayed with slope to drains, facilitating water removal.

For a variety of general and technical information about spray polyurethane foam roofing, please visit our Library section on this web site.

What is a Polyurethane Spray Foam System?

Polyurethane foam is produced by a chemical reaction of a polyol and an isocyanate, in the presence of catalysts and other additives. The result is a rigid plastic that expands during the curing process and forms a seamless layer of closed cell foam.

The "system" includes preparation of the substrate, as well as application of the foam and elastomeric coating. This coating produces a weather resistant surface that is strong enough to be walked on for normal maintenance..