Single-Ply: Flexible sheets of compounded syntheic materials that are manufactured in a factory to strict quality control requirements.
Built up Roof: Commonly referred to as "tar and gravel" roofts. They are generally composed of alternating layers of bitumen and reinforcing fabrics that create a finihsed membrane.
Metal:
Steep Slope: NRCA Steep-slope roof systems typically are composed of individual pieces or components installed in shingle fashion. Steep-slope roof assemblies typically consist of three primary parts.
TPO (Thermoplastic Ployolefin) Singe-ply roofing material that can be fully adhered, mechanically fastened, or ballasted.