Spray Polyurethane Foam has been used as a roofing material since the 1960s. Spray foam roofing systems have a proven track record of being dependable, long lasting, and affordable. Currently, there are foam roofs that have been in place for decades, and they should be able to last indefinitely as long as they are properly maintained.
Sprayed 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 becomes a seamless layer of closed cell foam.
The roofing system includes preparation of the substrate, as well as application of the foam and elastomeric coating. This coating produces a weather resistant surface that can be walked upon for normal maintenance.
Sealing unusual perimeter edge detail using spray applied polyurethane foam. Note the windscreen protection and personal safety equipment.
Benefits of spray foam:
- Seamless: There are no seams or joints, the source of the majority of leaks in traditional roofs.
- Flexible: The foam can be sprayed onto virtually any surface, irregularly-shaped roofs and protrusions are not an issue.
- Thermal Insulation: Spray foam has excellent insulating properties.
- Sustainability: Spray foam roofs require minimal maintenance and have an indefinite lifespan.