Rolled Roofing Vs Modified Bitumen

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

Rolled roofing vs modified bitumen.

Quick facts and cost installed. This roof system has two types. Modified bitumen is approved for flat roofs with minimal slope but roll roofing is not viable below a 2 12 pitch two inches of rise for each twelve inches of horizontal run with exposed nails or a maybe little lower with concealed nail installation. 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.

Modified bitumen is a roofing membrane consisting of asphalt and plastic or rubber polymers and is therefore widely considered an evolution of asphalt built up roofing bur. Look under rolled roofing see if its a roll that has been nailed to the deck versus a base sheet and a cap sheet. It may be a heat applied modified. The modified will be one with a base and cap.

You would be able to easily grab a corner and pull it apart but not so with the mod bit membrane. Some laymen erroneously call modified bitumen roll roofing since it does come in a roll but the more accepted definition of roll roofing is the cheap 90 granulated material just as trg has already stated. Rolled roofing or roll roofing things to know if you have a flat roof on your home or building chances are you ve heard about rolled roofing as a method of putting a new roof on your home. Modified bitumen displays the built in redundancy of asphalt built up as well as the uv resistance and flexibility of a modified membrane.

Bitumen roof advantages and disadvantages. 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. The two most commonly used roofing systems in commercial properties are tpo and modified bitumen. The words rolled roofing are pretty ambiguous however referring to not one but several different types of roofs that are available to you.

Modified bitumen an asphalt based multi ply flat roofing system is considered a modern take on its close cousin bur or built up roof. That might be a little harder to identify at first. The modified bitumen seals down to the roof so there are no seams. Sometimes bitumen roofing products like asphalt shingles can be recycled and used to construct new roads.