What is Polyurethane Spray Foam?
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 “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 can be walked upon for normal maintenance.
Advantages of Polyurethane Spray Foam
- Versatile: Polyurethane foam can be applied to surfaces with irregular shapes and penetrations. Applications include tanks, pipes, cold storage rooms and flotation devices. It is especially suited for roofing because applications can be made over the existing roof eliminating the need for costly tear-off of the old roof.
- Stops Leaks and Weather Resistant: Polyurethane foams form monolithic, self-flashing surfaces which 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 drains, facilitating water removal.
- Adheres to Most Surfaces: A seamless layer of foam is fully adhered to the substrate — horizontal or vertical — withstanding high wind stresses.
- Reduces and Simplifies Roof Maintenance: The applied polyurethane foam system usually requires no maintenance. If damaged, in most cases, caulking is sufficient for repair.
- Provides Superior Insulating Efficiency: Polyurethane foam is the most efficient form of thermal insulation available. The systems pay for itself in two to six years in energy savings alone.
- Reduces Building Movement: By placing the insulation on the outside, the foam system reduces building movement and thermal shock.
- Lightweight: Complete polyurethane foam systems are typically generally lighter than tar and gravel roof systems. When applied to an existing roof, the loose ballast removed usually weighs more than the replacement foam system. This results in a new roof that's lighter than the original.
- UL Listed: Spray foams incorporated into our systems are listed under UL 790* and UL 723*. UL 790 roofing systems are listed Class A over non-combustible decks and Class B over combustible decks.
- Asbestos and Formaldehyde Free: Our foams contain absolutely NO asbestos or formaldehyde.
- Proven Roofing and Insulating System: SPF systems have been applied successfully for over 35 years.
