Modified Bitumen Roofing Vs Built Up

Bit cap sheet if done correctly over any single ply membrane.

Modified bitumen roofing vs built up.

It is more durable tougher and has redundancy you don t get with a single ply. Modified bitumen roofing has been around since the 1970s when it was developed to address ongoing issues with traditional asphalt roofs. Modified bitumen is a 2 part low slope roof system that is made when polymers are added to asphalt to change its properties. Engineered modified bitumen roofing membranes originated in europe in the mid 1960 s and have been used successfully in the united states and canada since approximately 1975.

A built up roofing system is installed by alternating layers of bitumen and reinforced fabric. Built up roof membranes bur and modified bitumen mod bit are generally composed of alternating layers of bitumen and reinforcing fabrics that create a finished membrane. Modified bitumen mb roofing is an asphalt based close cousin of the built up roof bur designed for buildings with low slope or flat roof structures. Pros of the modified bitumen.

Having worked with most and specified several i can tell you i prefer a built up roof with a mod. It is fully adhered with a cold adhesive spread over the underlayment or secured by heating in place with a propane torch. The modified bitumen. They perform well in both extremely hot and bitterly cold conditions perfect for the weather extremes common across new jersey and nearby states.

If needed a base sheet can be fastened to the roof to create a flat and safe work space. What are bur and mod bit. 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. Modified bitumen vs tpo it is a question on the mind of many commercial building owners.

A single ply just offers a cleaner easier solution but without the longevity of a built up roof. A conventional alternative to bur systems are modified bitumen roofing systems. This type of a roof could be installed with the cold adhesives the asphalts or the common torch method. Benefits of bur and mod bit.

Modified bitumen displays the built in redundancy of asphalt built up as well as the uv resistance and flexibility of a modified membrane. Tpo roofs have been around since the 1990s. There is also self adhering version. Generally speaking there are two kinds of commercial flat roofing systems that are most commonly found in the northeast.

These are modified bitumen and thermoplastic polyolefin or tpo. The 2 part system consists of a base layer and a cap layer. The difference is that modified bitumen roofing is a heavier roof material with a longer life expectancy of 10 to 16 years.