Astm d6878 standard specification for thermoplastic polyolefin based sheet roofing warranties when purchasing a new roof system there will be two warranties to consider.
Thermoplastic roof membrane with a rubber backing.
Thermoplastic polyolefin tpo is a single ply reflective roofing membrane made from polyprophylene and ethylene propylene rubber polymerized together tpo can be installed either fully adhered mechanically attached fleece back adhered or as a self adhering sheet with the seams of the roofing system sealed with liquid adhesives or welded together.
Tpo thermoplastic polyolefin is a single ply reflecting roofing material or membrane made out of ethylene propylene rubber and polypropylene polymerized together.
First there will be the manufacturer s warranty.
However the essentials of a membrane roof include weatherproofing components reinforcement and surfacing.
In the building trades the acronym tpo stands for thermoplastic polyolefin a material originally developed for pond liners and used extensively for roofing since 1989 it s a single ply membrane made from a polymerized combination of polypropylene and ethylene propylene rubber that can be attached to a roof with adhesive or with mechanical fasteners.
Tpo is touted to have the benefits of two of its direct competitors epdm and pvc roofs but without the drawbacks and extra costs.
This means that a tpo roof is as uv resistant and as heat resistant as epdm and as heat weldable.
What is tpo roofing.
In general these warranties cover defects in the manufacture of the roof membrane.