This may surprise some diehard pvc users who may be unaware of the advances made in tpo formulation over the last several years.
Pvc vs tpo flat roofing.
Tpo membrane can provide combined benefits of both epdm rubber and pvc roofs but at a more economical cost than pvc.
Pvc has been successfully used in commercial and residential roofing since the 1960 s while pvc is a newcomer and has been around since early 1990 s.
Flat roof materials installation costs 2020.
In terms of weathering i e based on the heat aging and the accelerated weathering tests tpo has the clear edge over pvc.
Tpo vs pvc roofing.
It s therefore not surprising that tpo roofing systems are quickly growing in popularity and demand in both residential and commercial flat roof markets.
In the current single ply roofing market the two most popular options are thermoplastic membranes pvc and tpo.
Pvc s are documented to last longer than tpo membranes who are still experiencing premature failures.
As noted in the chart below created from rs means data if you compare the life cycle costs of a sarnafil roof estimated to last 35 years versus a tpo roof lasting 20 years pvc is the less expensive choice.
The most obvious similarity is that tpo thermoplastic olefin and pvc poly vinyl chloride are both thermoplastic materials.
Both are white heat welded systems that look virtually identical.
When it comes to a durable roof that is also environment friendly tpo roofing is a great option.
Both membranes are heat weldable which makes them more resistant to leaks than epdm because of a reduced number of instances of seam failures.
This means that it requires glues to adhere it to what s underneath.
Tpo in a nutshell a tpo membrane is made from ethylene propylene rubber.
Tpo epdm rubber bur modified bitumen spray on coating 24 replies when it comes to covering up a flat roof your options are both limited and expansive.
In terms of weathering i e based on the heat aging and the accelerated weathering tests tpo has the clear edge over pvc.
However while the face of both membranes and their installation are virtually identical they are very different systems on the inside.
Unlike tpo and pvc roofs that are often mechanically attached an epdm roof is most often fully adhered.
Initially tpo roofing was designed to be an improved version of both pvc and epdm rubber membranes combing the benefits of both but without the disadvantages.
If you are up for a more chemical resistant roofing and are looking for a cost friendly option pvc roofing is the way to go.
A pvc versus tpo comparison chart is below.
The seams are either glued with the rest of the roof different process same result or they are taped.
