A TPO roofing membrane is made from ethylene propylene rubber. Special technology is used to chemically bind together, rubber, ethylene ( an organic gaseous substance) and propylene (a byproduct of petroleum refining). At the end, numerous filler materials are added, such as talc, carbon filler and fiberglass. These fillers reinforce the TPO membrane’s strength and durability. A TPO roofing membrane has been specifically designed to have the advantages of a rubber roof, combined with hot – air weldable seams for extra durability. TPO roofing membranes have been manufactured in the US since the early 1990’s and are now the fastest growing segment of the US single-ply roofing industry.

TPO membranes take the best features from its direct competitors EPDM and PVC, while offering homeowners and businesses an innovative, energy-efficient and cost-effective roofing solution. TPO roofs are durable; resisting dirt, bacteria, algae and debris build-up. The flexibility of the membrane makes it highly resistant to tears, punctures and impact damage. This flexibility also allows for a building’s movement and setting, without compromising the roof’s performance. Moreover, a TPO roof can withstand damaging ultraviolet, ozone and chemical exposure. Hot-air welded seams are very strong, with seam strengths being as much as 3-4 times greater than EPDM adhesive and tape seams.

A TPO membrane is considered to be a cool roof and is Energy Star rated. This means that the membrane reflects the sun’s ultraviolet rays. This can significantly lower HVAC costs and make the interior temperature more comfortable during hot summer months.

All of these advantages combine to make TPO a very intelligent choice for residential homeowners.