Spray Polyurethane Foam
Urethane foam roofing is a sprayed-on system of insulation and coating that benefits the owner with versatility and flexibility in design. Contact the experienced team at Washington Roofing & Insulation Inc today for more information. We provide up to 20-year warranty on our services.
You can get a FREE roof inspection. We also offer infrared services, drone photography, specification writing, and roof consultations.
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Take a Look at Some of the Benefits
A sprayed polyurethane roof forms a seamless insulated roofing system. It has no joints or seams that often allow outside water and air to pass through the roofing system into the building structure. Regardless of the size of your roof, it will have no seams.
Eliminate Ponding Water
In re-roofing applications, ponding water may be eliminated by adding an increased thickness of polyurethane insulation in low areas. Building up the low areas and sloping the roof, so that it drains properly and eliminates the ponding water and additional load factor that is caused by water accumulation.
Eliminates Flashing Leaks
Because a sprayed polyurethane roof system conforms to the substrate and when installed is a seamless system, it is ideal for flashing parapet walls, roof penetrations, and roof-mounted equipment, including vents, pipes, stacks, HVAC equipment, skylights, and cooling towers. Many roof leaks are caused by faulty flashings. Sprayed polyurethane solves this problem.
The weight of polyurethane insulation is between 2 – 3 pounds per cubic foot. One inch of polyurethane insulation plus 30 mils of an elastomeric coating weighs approximately 60 pounds per 100 square feet, as compared to approximately 600 pounds per 100 square feet for a typical conventional four-ply built-up roofing system.
This makes a sprayed polyurethane roof system ideal for reroofing, as it is often possible to apply over an existing built-up roof without removing it.
Highest "R" Value
Sprayed polyurethane insulation has an “R” value of 6.7 per inch, enabling it to provide more thermal resistance with less material than any other insulation.
Polyurethane roof systems are chemically inert. They are odorless, resist attack by either mildew or fungi and have no nutritive value.
While sprayed polyurethane insulation is very lightweight. It is strong and will not pack down or sag.
Minimizes Thermal Shock
Because a polyurethane roof system is seamless, it has a high “R” value and uses a reflective elastomeric coating. It greatly reduces the thermal shock that a building is subjected to, by fluctuating outdoor temperatures.
Polyurethane insulation can be used on both new and replacement roofs, whether flat, pitched, saw-toothed, domed or having unusual slopes or configurations. It is also ideal for application to tanks, freezers, coolers, piping, ductwork, and various aerospace projects.
It can withstand a structure’s normal expansion and contraction without affecting the ability to keep the structure protected from the outside elements.
Polyurethane insulation is made of billions of minute, closed cells that resist the penetration of water and vapors. It must, however, be protected by an elastomeric coating suited for use in that particular environment. Elastomeric coatings are specifically engineered for this purpose.
The elastomeric coating system, which protects the polyurethane insulation, can be rejuvenated by the reapplication of an additional coating after the initial coating system has weathered many years of service.
Ease of Application
A polyurethane roof system can be applied in a relatively short period of time with little or no disruption of building operations by our experienced and qualified roofing crew.
Ease of Maintenance
Minor repairs or modifications to a polyurethane roof system can be made by our in-house maintenance personnel. All that is needed is a hand caulking gun and a tube of caulk.