Our 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 “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.
Ten Advantages of Sprayed Polyurethane Foam
1) It’s Versatile
Sprayed 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, as many applications can be made over the existing roof. This can eliminate the need for costly tear-off of the old roof.
2) It Stops Leaks and is Weather Resistant
Once applied, sprayed polyurethane foam roofs develop into monolithic, self-flashing surfaces which effectively seal against leaks. Further protection comes from the weather resistant, elastomeric coating applied over the foam. The foam can be sprayed with slope drains, facilitating water removal.
3) It Adheres to Most Surfaces
A seamless layer of foam is fully adhered to the substrate, horizontal or vertical, and withstands high wind stresses. There is no need for fasteners with this system, which eliminates a common point of roof failure.
4) It Reduces and Simplifies Roof Maintenance
The spray-applied polyurethane foam system usually requires no maintenance. If damaged, caulking is sufficient for repair in most cases. Making repairs is such a simple job, most facility managers choose to have the repairs done by someone in-house.
5) It Provides Superior Insulating Efficiency
Polyurethane foam is the most efficient form of thermal insulation available. A foam roof can usually pay for itself in 2 to 6 years in energy savings alone.
6) It Reduces Building Movement
By placing the insulation on the outside, the foam system reduces building movement and thermal shock. This increases the life of your building as it reduces overall stress on the structure.
7) It’s Lightweight
Complete polyurethane foam systems are significantly lighter than tar and gravel roof systems. When applied to an existing roof, the loose ballast that is removed usually weighs more than the replacement foam system. This results in the new roof being lighter than the original.
8) It’s UL Listed
Polythane Systems’ spray foams 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. This numerical flame-spread rating is not intended to reflect hazards presented by this or any other material under actual conditions. NOTE: Polyurethane foam is an organic material and will burn if exposed to enough heat and oxygen. For interior building surfaces, building codes require an approved thermal barrier.
9) It’s Asbestos and Formaldehyde Free
Our foams contain absolutely NO asbestos or formaldehyde. You can feel safe as they’re installed and as you operate inside the building.
10) It’s a Proven Roofing and Insulating System
SPF systems have been applied successfully for over 40 years. Many of the first sprayed polyurethane foam roofs that were installed are still in place today.