Modified Bitumen Vs Pvc Roofing

When it comes to modified bitumen vs.

Modified bitumen vs pvc roofing.

One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof. Bitumen roof advantages and disadvantages. The two most commonly used roofing systems in commercial properties are tpo and modified bitumen. These descriptions don t do justice to the potential of both modified bitumen and tpo roofing systems.

No matter what type of method was used to install the modified bitumen they all have on thing in common that is a good seal. Tpo roofing we prefer tpo because it is a superior product. I have quotes for pvc tpo torchdown. While they share many qualities with pvc systems they typically come at a lower cost.

We specialize in the installation of customized single ply roof systems including those with tpo pvc and epdm membranes. I got a couple of estimates for a new roof. Sometimes bitumen roofing products like asphalt shingles can be recycled and used to construct new roads. Anyway i have confidence in the mopped modified bitumen roof but no experience with the rest of them.

It is one of the strongest flat roof materials amongst tpo epdm and mod bit. Not one roofer quoted a mopped bitumen cap sheet roof until i asked. Many modified bitumen roofs require two layers of roofing felt for durability and some applications can call for as many as three layers. Modified bitumen is a type of asphalt product that can be applied in a number of ways to the roof in both hot and cold temperatures.

Pvc is a plastic roof material that is formed by a gaseous reaction between oxygen hydrochloric acid and ethylene. One of the buildings i own in san francisco needs a roof. According to the american society of testing and materials astm a roofing membrane must have a breaking strength of around 200 ppi. Single ply roofing systems or membrane roofs include epdm tpo and pvc roofing.

Modified bitumen one potential area of concern with single ply roofing membranes including tpo epdm and pvc is that although these roof membranes are durable sharp objects and collisions can still rip through the single ply of the membrane. Modified bitumen features an advantage in this aspect since it is a multi ply roofing material. It currently has tar and gravel. Modified bitumen roofing has been around since the 1970s and tpo developed later in the 1990s but they both are ideal for all types of weather and have advantages and disadvantages.

The modified bitumen seals down to the roof so there are no seams.