TPO, or thermoplastic olefin, is a single-ply roofing system that is heat welded together to form a secure, watertight barrier. It is reinforced with polyester fabric, making it resistant to great temperature changes. It is cost-effective, quick to install, and incredibly effective as a roofing system.
An EPDM (Ethylene Propylene Diene Monomer) roofing system is very comparable in terms of specifications to a TPO or PVC system, as it is single-ply and very cost effective. EPDM is a synthetic rubber system that is resistant to heat, tears, and punctures.
One of the first single-ply systems used in roofing, PVC has stood the test of time as a reliable and efficient roofing system. Seams are heat-welded together to form an incredibly strong bond that will be water tight for decades.
A hot asphalt roofing system is formed by joining a layer of base rolls with a layer of cap sheets. Together, they form a strong bond that will last for many decades with little maintenance.
Like a hot asphalt system, a torch down roof is made up of a base layer and a cap sheet layer. A propane torch is used to fuse these layers together as the cap sheet is laid on top of the base layer. This method of adhering layers results in a very durable and heat-resistant system.
Made by coating a dry felt/asphalt layer with harder asphalt/fiberglass layer, cold process roofing systems are very durable and resist punctures and scrapes. The final system is covered with stone granules resulting in a very appealing uniform look.