Flat Roof Modified Bitumen

One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof.

Flat roof modified bitumen.

Modified bitumen sbs roofing systems. It s suitable for multiple types of decks and shows proven performance. They come in rolls that workers apply using hot and cold temperatures. 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.

Built up roofing bur was the most common type of flat roof before modified bitumen and membrane roofing were developed. Modified bitumen roof application modified bitumen roofs are single ply systems that are most often roll applied to the roof surface. Modified bitumen roofing. Modified bitumen an asphalt based multi ply flat roofing system is considered a modern take on its close cousin bur or built up roof.

If your flat roof is covered with gravel you will likely need to hire a professional to reroof it. Modified bitumen cap sheet roofing was developed in the 1960s as a replacement technology for bur or built up roofing by using the proven technology of bur but also adding polymer reinforced roof wear layers or cap sheets. Bur consists of many layers. There are three application methods including heat welded cold adhesive and hot asphalt.

Bitumen roof advantages and disadvantages. 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. If the surface is smooth you may be able to reroof using sheets of modified bitumen or epdm rubber roofing. Built up roof bur modified bitumen roof mbr and rubber membrane roof epdm.

Modified bitumen roofing was designed for use on buildings that have a low slope or flat roof. They are similar to asphalt roofs but they have additional polymers in their materials that provide added protection from the elements and help in increase the lifespan of the product. This combination results in maximum durability. 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.

Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you. 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. A modified bitumen flat roof is composed of asphalt that is reinforced with fiberglass material and other modifiers. Advantages there are a wide range of methods available for installing modified bitumen roofing from using a hot torch to using a sealant backed peel and stick rolls.