Single-ply roofing is essentially any flexible sheet of compounded plastic-derived material that is used to protect and cover flat and low-sloped buildings. Not all single-ply roofing options are identical, but they do share some basic properties.

The three primary types of single-ply roofing are Polyvinyl Chloride (PVC), Ethylene Propylene Diene Monomer (EPDM), and Thermoplastic Polyolefin (TPO). PVC single-ply roofs have been in use the longest, and are still a popular option, although TPO and EPDM currently lead the industry.

Lightweight, reinforced, highly reflective, light colored membrane used for roofing since the early 1970s. Highly resistant to chemical atmospheres, ozone, ultraviolet light, tears, and extreme weather conditions. Exhibits excellent fire resistance and seam strength due to heat welding.

Lightweight, synthetic elastomer material used for roofing since the early 1970s. Resilient, tensile strength, elongation, resistant to ozone, ultraviolet light and ponding water. Available in fleece back, which can be installed in hot asphalt or low rise adhesive.

Lightweight, reinforced, highly reflective, light colored membrane used for roofing since the early 1970s. Highly resistant to chemical atmospheres, ozone, ultraviolet light, tears and extreme weather conditions. Exhibits excellent fire resistance and seam strength due to heat welding.

Architectural and structural metal panel roof systems utilizing galvanized steel or aluminum. Custom panel sizes, profiles, colors and finished coatings are available for commercial application. Offers long-term weatherability, low maintenance and aesthetic value.

Used for roofing since 1975. Composed of either asphalt reinforced with polyester or fiberglass and, in some cases, with factory-applied surfacing. Installed typically in multiple layers using hot bitumen, torch-applied or cold adhesive. Resistant to heavy traffic, puncture and tears.

Various materials used for roof surfacing, maintenance or repair, weatherability, reflectivity, ultraviolet light protection or aesthetics to enhance the performance or weathertight integrity of the installed roof system.

Multiple layers of felts, fabrics or mats saturated with bitumen installed rooftop in alternating solid moppings of hot bitumen (asphalt or coal tar) or cold adhesives. Can be surfaced with gravel, mineral cap sheets or smooth weather resistant coatings. Multiple layer construction ideal for resisting mechanical damage due to mechanical contractors and other trades.