Roof Solutions Inc. installs single-ply Thermoplastic Olefin (TPO) and Polyvinyl Chloride (PVC) ‘Cool Roofing’ applications and systems on stand-alone, flat or low-sloped roof structures for both residential and commercial buildings. Single-Ply Membranes can be ballasted, mechanically fastened or chemically adhered over solid roof decks. While Single-Ply Membrane Roofing is one of the most well-known types of commercial roofing material, there are several options to fit your budget and facility needs. On commercial properties the manufacturer warranty can be up to 20-25 years depending on the roof system.