Tpo membrane can provide combined benefits of both epdm rubber and pvc roofs but at a more economical cost than pvc.
Tpo vs pvc for flat roofs.
According to the american society of testing and materials astm a roofing membrane must have a breaking strength of around 200 ppi.
Two of the hardest flat roof systems to tell apart is the pvc roof and the tpo roof.
Both are white heat welded systems that look virtually identical.
Epdm rubber and tpo pvc roofs offer a far better quality longevity durability and protection.
While somewhat more expensive than their direct competitors.
Pvc is a plastic roof material that is formed by a gaseous reaction between oxygen hydrochloric acid and ethylene.
The material is the third most widely produced synthetic plastic polymer.
Tpo in a nutshell a tpo membrane is made from ethylene propylene rubber.
This means that it requires glues to adhere it to what s underneath.
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.
It s also a single ply roofing solution used on commercial roofs.
In terms of weathering i e based on the heat aging and the accelerated weathering tests tpo has the clear edge over pvc.
It is one of the strongest flat roof materials amongst tpo epdm and mod bit.
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.
Flat roof materials installation costs 2020.
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.
Tpo single ply membrane for flat roofs of residential homes pvc roofs have been installed in the us since 1970 s and have a long proven track record of success.
The most obvious similarity is that tpo thermoplastic olefin and pvc poly vinyl chloride are both thermoplastic materials.
Pvc s are documented to last longer than tpo membranes who are still experiencing premature failures.
It s therefore not surprising that tpo roofing systems are quickly growing in popularity and demand in both residential and commercial flat roof markets.
The seams are either glued with the rest of the roof different process same result or they are taped.
A pvc versus tpo comparison chart is below.
Usually these get used on flat or low sloped roofs.
Pvc stands for polyvinyl chloride.
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.
