Single Plys
Single-ply roofing refers to the installation of a single layer of roofing material. Single-ply roofing consists of both Thermoplastic Roof Membranes and Thermoset Roof Membranes.
According to the National Roofing Contractors Association: “Thermoplastic roof membranes, commonly referred to as single-ply membranes, are flexible sheet materials that are used in one-ply or one-layer configurations as low-slope membranes. Thermoplastic roof membranes’ materials’ chemical and physical characteristics allow them to repeatedly soften when heated and harden when cooled. Typically, there is no chemical cross-linking in the molecular composition of a thermoplastic membrane’s compound. Because of the chemical nature of thermoplastic membranes, thermoplastic membrane sheets typically are seamed by heat-welding with hot air. …Thermoplastic roof membranes may be installed in four general configurations: ballasted, mechanically attached, fully adhered to an approved substrate, or as a protected membrane.”
Also according to the National Roofing Contractors Association: “Thermoset roof membranes, commonly referred to as single-ply membranes, are flexible sheet materials that are used in one-ply or one-layer configurations as low-slope roof membranes. For thermoset roof membranes, the materials’ principle polymers are chemically cross-linked. This chemical cross-linking of thermoset membranes means that the membrane sheet material is cured or vulcanized. …Thermoset membrane systems may be specified as ballasted, fully adhered, mechanically fastened to an approved substrate or installed, or installed as a protected membrane roofing system.”
Donan Engineering’s team of professional engineers has the knowledge and experience to successfully study all types of single-ply roof systems for proper installation, material defect, storm damage, wear and tear, or other causes of potential loss.
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