Top Insulation And Waterproofing Qualities of Polyurethane Foam Roofing
Polyurethane foam roofing has been one of the most common materials for insulation and roofing for more than 40 years. Once, they were considered only to be an alternative to the age-old built-up roofing but now polyurethane foam roofing already belongs to the forefront of the roofing industry as it has proved its reliability, dependability and affordability. Some have already lasted 40 years and seem to be capable of performing for several more decades. You may want to check out ContractorsIn Roofing & Waterproofing for more.
Polyurethane Foam Roofing Has a Lot of Benefits
When compared to other roofing options, polyurethane foam roofing has many significant advantages. Since polyurethane foam comes in liquid form first and is then sprayed uniformly as a single, continuous membrane that covers the entire roof, this method of roofing provides seamless coverage. Unlike other roofing materials, there are no joints or seams that can widen and cause leaks. Polyurethane foam is also versatile, allowing it to be mounted on almost any surface, including roofs with protrusions and irregular shapes.
Polyurethane foam roofing is also very light, weighing around 50 pounds per square foot versus 800 pounds for built-up roofing systems and at least 100 pounds for ballasted single-ply membrane roofs. Polyurethane foam is also an excellent insulator, helping to retain heat outside during hot seasons and inside during cold seasons. This form of roofing is also very simple to maintain, produces little waste during use, and can last an infinite amount of time with proper maintenance.
Polyurethane foam roofing has unrivalled insulating properties. It is the only roofing alternative that can provide sufficient thermal resistance for such a thin material. The R-value of polyurethane foam roofing is 7.14 for every inch of thickness. This will help you save up to 30% on energy costs for both cooling and heating.
With such savings, the roofing expense can be easily recovered in just five years. Wineries, chemical manufacturing plants, and oil refineries have all benefitted from these insulating properties. How much more can polyurethane foam roofing offer in less challenging settings if it can withstand the demands of these industries?
The ability of polyurethane foam to be waterproof is another significant feature. Polyurethane foam roofing is made up of extremely tight cells that, when combined, can serve as a water and moisture barrier. It not only keeps liquid water at bay, but it also reduces dew point issues and prevents water condensation within structures.
Even if the top coat of the foam is weakened, the roofing is still covered because the underlying layer keeps the roof waterproof. Water often drains correctly, preventing water retention even when it rains.
What It Is and How It Is Used
Polyurethane foam roofing is made up of a polyol and an isocyanate. The two compounds are sprayed in a mixture using a spray gun as a single substrate by a machine known as a proportioner, which heats the two chemicals and sprays them in a mixture using a spray gun as a single substrate. Since the foam is sprayed in liquid form, it may cover a structure’s surface in a single, continuous layer with no seams or joints, ensuring consistency and even coverage.
The surface must be dry and free of contaminants such as solvents and oil before the polyurethane foam roof can be mounted. Another coating, known as the elastomeric coat, is sprayed on top of the polyurethane foam roof to shield it from the sun’s rays, rendering the roof even more secure.