All About TPO Roof

There are different types of roofing available for various types of structures. Some of them are Metal roof, steel, clay, solar shingle and many others. The roofing that one chooses depends on various factors like construction type, size and budget. While household requirements are different, large commercial complexes and buildings require altogether different roofing.

One of the fastest growing and the most useful roofing system is TPO. It is particularly considered useful for flat roofs which require thin roofing. Moreover, Legacy USA Service like the reputable home improvement company offers a budget friendly price is also making owners opt for it putting it ahead of its other counterparts.

What is TPO roofing and how it turned out to be the best commercial roofing?

TPO stands for Thermoplastic Polyolefin. It is thin single-ply roofing that is covered on the surface of the roof. Though the name indicates plastic, the actual material used is rubber, a combination of polypropylene and ethylene-propylene rubber. This became very popular in the recent past because of its advantages compared to other forms of roofing.

Characteristics and merits of TPO roofing:

Energy efficient:

They save lot of energy thereby reducing HVAC costs of a building.

Cost effective:

They are very cheap when compared to other forms of roofing like EPDM and other rubber rolled roofing.


The standard colour of TPO roofing is white which allows reflection of sunlight and prevents accumulation of heat in the building.

Dirt and bacteria resistant:

These roofs are resistant to dirt and bacteria. They are made of high quality durable rubber which makes it durable and resistant to tears and punctures. It is so flexible because of its thin material and does not affect the movement of the structure.

Great withstanding quality:

It can withstand harsh conditions like hot UV rays of the sun, ozone layer and other natural and chemical exposures. A building can significantly lower its HVAC costs as it can effectively reflect sun’s UV rays. This prevents heat from entering in to the building thereby giving cooling effect in the hottest months.

Differences between PVC, EPDM and TPO

The above three are the most common roof materials used. The type of material one has to choose typically depends on the climate of the area, the manner in which the roof will be used and the way of installation of the roof. The primary differences are as follows:


TPO can be installed by adhering, mechanically fastening the ropes or by mopping. The seams are welded with the help of hot air.

EPDM, Ethylene Propylene Diene Monomer, is generally installed by means of gluing. It can be mechanically fastened and at times ballasted also, particularly in some cases like parapet walls.

PVC, Poly Vinil Chloride can also be mechanically fastened and mixed with adhesion. The seams are welded with hot air.

UV rays protection:

EPDM does not come with UV ray protection whereas TPO and UVC systems have UV protection in their materials.


PVC is more durable than TPO and has more life span because of its strength. PVBC is less durable when compared to the other two.

Fire and wind resistance:

Both PVC and TPO are fire and wind resistant. These days the hot air welded seams in EPDM also offer high wind resistance and are suitable for flat and low sloping roofs.

So before zeroing in on the type of material for your roof, research on the pros and cons of each type or take help of a roofing contractor.

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