Single-ply membrane roofing systems constitute the majority of roofs installed today. This thermostat membrane is composited from rubber-polymer and is known as a rubber roofing. Some of the characteristics that contribute to the popularity of EPDM single-ply roofing included long-term durability, including excellent resistance to temperature extremes, sunlight, ozone and moisture, ease, speed, and cleanliness of installation. This lightweight synthetic elastomer material has been used since the early 1970s. Another feature is adaptability. The methods of securement of these systems range from ballasted to mechanically attached, to totally adhered. Seams can be taped, glued, heat-welded, solvent welded, and mechanically fastened to provide a strong, watertight monolithic system allowing EPDM roofing systems to be applied to virtually any roof surface.