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.
If you are looking to install a single ply roofing membrane that will be energy efficient and are evaluating your options consider tpo thermoplastic olefin roofing.
In general these warranties cover defects in the manufacture of the roof membrane.
This means that a tpo roof is as uv resistant and as heat resistant as epdm and as heat weldable.
However it has since carved its niche in the roofing market and has now become a popular option for roofing contractors especially in the commercial roofing space.
A variety of materials can be used to construct membrane roofs for example synthetic rubber thermoplastic pvc or similar material liquid polyurethane or modified bitumen can all be used.
Tpo is touted to have the benefits of two of its direct competitors epdm and pvc roofs but without the drawbacks and extra costs.
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.
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.