Flat Roof Bitumen Membrane

Modified bitumen torch down roofing.

Flat roof bitumen membrane.

Epdm rubber membrane roofs are the most popular of all the. All three types of flat roofing cost 250 to 350 per square 100 square feet but prices vary according to region and size of the roof. A bottom layer or two of insulation board multiple intermediate layers of tar or asphalt alternated with layers of roofing felt and a top layer of gravel. The roof felt asphalt tar layering is repeated in overlapping layers until the assembly is two to fours plies in thickness.

The breadth of bitumen we believe that finding the right solution can not only transform your roof but the building itself and the lives of the occupants. There are three types of roofing systems used for rubber membrane roofs. Built up roof bur modified bitumen roof mbr and rubber membrane roof epdm. Bitumen roof advantages and disadvantages.

Pros and cons for flat roof materials. Bmi south africa flat roof solutions can allow you to achieve virtually any design including roof terraces solar and green roofs. Membrane roofing is often used on commercial flat roofs. Built up roofing bur was the most common type of flat roof before modified bitumen and membrane roofing were developed.

Bur consists of many layers. Common flat roof membranes discussed in this article include built up asphalt tar and gravel modified bitumen and single ply membranes like epdm pvc tpo and kee. The materials on flat roofs are mostly rubber. We also cover spray applied foam and liquid roofing options.

One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof. Modified bitumen is installed in multiple layers multi ply roof each of which is torched to the surface below at every turn of the roll. Although tpo is a vinyl type of material we will also include it as part of this article. Bitumen membranes the most robust membrane systems developed to offer the latest in flat roof technology on a range of surfaces.

The hot applied asphalt or coal tar pitch blends with the bitumen soaked roof felt and creates a monolithic roof membrane. Modified bitumen an asphalt based multi ply flat roofing system is considered a modern take on its close cousin bur or built up roof.