Built Up Roof Vs Modified Bitumen

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

Built up roof vs modified bitumen.

January 22 2019 share the wealth. Flat roofs are one of the most popular roofing designs and yet still one of the best investments for most of the facilities. Built up roofing bur built up roofing bur was the most common type of flat roof before modified bitumen and membrane roofing were developed. Bur roof systems have been utilized for over 100 years in the roofing industry.

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. All roofing materials can offer this particular perk but the most affordable ones are modified bitumen roofs and tar and gravel or built up roofing bur. Having worked with most and specified several i can tell you i prefer a built up roof with a mod. A single ply just offers a cleaner easier solution but without the longevity of a built up roof.

Second although the gravel spread over a modified bitumen roof is intended to offer uv and hazard. What is the difference between modified bitumen and spray polyurethane foam flat roofing. However the type of materials used for the flat roofs depends a lot on your locality. First although an app modified bitumen roof is designed to resist uv light damage blistering cracking and oxidation a lack of standards led some manufacturers to skimp on the addition of the app modifier.

According to experienced and knowledgeable corpus christi tx roofing contractors modified bitumen is the successor to traditional tar and gravel roofs. Bur consists of many layers. It is more durable tougher and has redundancy you don t get with a single ply. This is not a requirement at all for modified bitumen roofing systems.

This caused the roof to underperform. Pros of the build up roof. Learn about two of the most popular flat roofing systems. Modified bitumen displays the built in redundancy of asphalt built up as well as the uv resistance and flexibility of a modified membrane.

Build up vs modified bitumen vs rubber membrane flat roofing. These roof systems are constructed with layers of felt and bitumen that provide a redundancy of durable protection. 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.