Although most commonly used in commercial roofing and construction, membrane roofing is becoming necessary in residential application. Membrane roofing is used in flat or nearly flat roofs and is used to prevent leaks – essentially by moving water off the roof.
- Synthetic Rubber (Thermoset) roof is made pieces of large, flat synthetic rubber (or similar material) welded together at the seams to form one, continuous membrane.
- Thermoplastic Membrane is similar to the synthetic rubber or thermoset roof, except the pieces do not form one, continuous membrane and instead the seams “lap” and are bonded chemically or by heat.
- Modified Bitumen is often described as the evolution of asphalt roofing. Made from asphalt, modifiers and solvents, there are many ways to connect pieces of this roofing material. In a heat application process, the seams are heated to melt the asphalt and create a seal. There are also various other ways of connecting the asphalt in both cold systems, self adhesive and chemical.
Prior to the above three applications, commercial roofing was solved by a common flat roofing method of asphalt and gravel, where it’s difficult to seal all seams and connection points, causing much more maintenance. In the newer applications, we now have seamless applications or have bonds as strong as the body itself. This creates less maintenance over the life of your roof. Previous asphalt roofs degraded faster due to expansion and contraction throughout the day due to heat and UV exposure. The previous asphalt and gravel roof method had leaks that were harder to detect and did not form strong bonds to the roof. Our new systems resist expansion and contraction, and reflect much of the sun’s UV rays – they’re also attracted to the building, forming a better seal.