Polyurethane Foam Roofing
Spray Polyurethane Foam (SPF) Roofing
Spray Polyurethane Foam has been used as a roofing and insulation material for over 45 years. During this time, foam roofing systems have proven themselves through comprehensive, independent studies to be dependable, long lasting, and very affordable. Today there are foam roofs that have been in place for decades, and by all appearances they should be able to last indefinitely as long as they are properly maintained. Many additional benefits also exist such as superior compressive strength, lightweight, self-flashing, durable and long lasting.
Benefits of Spray Foam Roof Systems:
- Leak-free monolithic seal over your entire roof deck
- Self flashing
- High insulation value / Rapid payback with energy savings
- Strong adhesion and wind uplift resistance
- Weather resistant
- Lightweight and high strength
- UL and FM approved systems
Sprayed Polyurethane Foam is a combination of isocyanate and polyol applied as a liquid using plural-component spray equipment to fill cracks and crevices. It then expands approximately 30 times its original liquid volume to form a hard, closed cell monolithic roof surface. The Polyurethane Foam dries within seconds after applied to the roof surface. Its expansion results in a weather tight roofing membrane that is fully adhered to the substrate. Because of polyurethane’s lightness, it adds little additional weight to the structure and is often used in remedial applications. Polyurethane Foam has a history of more than 35 years as a maintainable roofing medium. Polyurethane Foam adds excellent insulation value to the structure and utility bills will reflect the difference.
Because it is sprayed onto the roof as a liquid, it forms a single continuous structure that is seamless and very stable. SPF requires a clean surface for proper application. It must be dry, free of contaminants like oil, and properly fastened to the substrate in accordance with the proper building codes. A protective elastomeric top coat is required which is typically sprayed on as well, but it is also possible to be applied with hand or power rollers.
Protective Coatings for Spray Foam Roofs
Once the SPF has been applied to the proper thickness and finish specifications, a protective layer of elastomeric coating or gravel is applied. This protective layer produces a durable weather resistant surface and that can be walked on for normal maintenance.
Energy Star™ Cool Roofs Program
ENERGY STAR qualified roof coating products reduce the amount of air conditioning needed in buildings, and can reduce energy bills by up to 50%. The Cool Roof Program defines certain standards for reflectivity, and maintenance of reflectivity, in roof coating systems. These light colored roof coatings reflect the suns heat and UV rays and often lower the temperature of the roof by up to 100 degrees.
SPF home insulation saves on energy costs and lowers utility bills and pays for itself. SPF is used to seal the entire “building envelope” to prevent air and moisture infiltration. The US Department of Energy (DOE) studies show that 40% of a buildings energy is lost due to air infiltration. Often times no expensive building wrap or additional vapor protection is required during construction when using SPF, saving money yet again.
Benefits of Spray Foam Insulation
- Stops air and moisture infiltration
- Makes your home more comfortable
- Saves on energy costs
- Adds strength to the building structure
- It is permanent and will not sag
- Keeps dust and pollen out
- Reduces capacity requirements, maintenance and wear of HVAC equipment
Sprayed polyurethane foam has an aged R-value of approximately 6.0 per 1 inch thickness (depending on the particular formulation and application – higher values have been achieved). this enables it to provide more thermal resistance with less material than any other type of commercial insulation material. SPF systems are frequently used to insulate and protect a wide variety of residential, commercial, and industrial buildings.
Monthly energy and utility savings of 30% or greater can be achieved when compared to the alternative roofing and insulation systems. The cost of an SPF roof or insulation system can often be recovered in less than 5 years, simply through energy savings alone.
Prevents Air, Moisture and Gas Infiltration
Studies have shown that as much as 40% of a building’s total energy loss is due to air infiltration. Traditional fiberglass insulation is only stapled, or placed into the wall cavities and does not seal the stud and wall cavities from end to end, or top to bottom. Air infiltration can pass through these gaps, making it far less efficient than SPF.
SPF not only adheres to, but forms to the walls and floors to create a tight seal and insulating barrier that stops this air leakage. SPF also boasts the highest R-value per inch than any other commercial material, (upwards of R-7.0, compared with Fiberglass at R-3.5) making your home more comfortable and less expensive to heat in the winter, and cool in the summer.
Since SPF acts as an air barrier, it also helps to reduce moisture infiltration, which is a source of dangerous mold and mildew growth in the home, and can cause severe health problems to its occupants. So save your family and save money at the same time with SPF home insulation systems. Moisture infiltration can also cause structural damage to your home or building.
Helps Reduce Moisture and Mold
Molds produce tiny spores to reproduce. Mold spores waft through the indoor and outdoor air continually. When mold spores land on a damp spot indoors, they may begin growing and digesting whatever they are growing on in order to survive. There are molds that can grow on wood, paper, carpet, and foods. When excessive moisture or water accumulates indoors, mold growth will often occur, particularly if the moisture problem remains undiscovered or un-addressed.
There is no practical way to eliminate all mold and mold spores in the indoor environment; the way to control indoor mold growth is to control moisture. SPF insulation is the key.
Enhances Overall Building Stability
Since SPF is seamless and monolithic, foam sprayed into the walls enhances overall building stability and reduces “rack and sheer”.
Deadens Sound Travel and Noise
SPF also reduces airborne sound making the home acoustically tighter and more private from room to room.