Problems On Modified Bitumen Roofing

A modified bitumen roofing system is composed primarily of polymer modified bitumen reinforced with one or more plies of fabric such as polyester fiberglass or a combination of both.

Problems on modified bitumen roofing.

The membrane consists of a multi layer sheet of asphalt with polyester or fiberglass reinforcements and plastic or rubber modifiers. Modified bitumen roof life defects wear common defects life of modified bitumen roof effective roof coatings. The modified bitumen seals down to the roof so there are no seams. Modified bitumen roofing has been around since the 1970s and tpo developed later in the 1990s but they both are ideal for all types of weather and have advantages and disadvantages.

Bitumen roof advantages and disadvantages. Modified bitumen roofing was designed for use on buildings that have a low slope or flat roof. 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. The modified bitumen roofing material is installed in long sections that are 30 35 inches wide.

Manufacturing facilities due to the large number of rooftop penetrations are plagued by pitch pocket problems. 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. Sometimes bitumen roofing products like asphalt shingles can be recycled and used to construct new roads. This article describes common defects found on modified bitumen roofs such as buckling cracking granule loss improper installation details leaks.

The most common problems include. 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. Modified bitumen roof defects wear signs life expectancy life extension by coating. Factory surfacing if applied includes mineral granules slag aluminum or copper.

One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof. Although not extremely low it is still one of the lowest out of all the roofing materials options available. Modified bitumen has a life expectancy of 10 20 years. Modified bitumen cons 1.

Additionally hot bituminous and torch applied modified bitumen roofs may experience leaks when a proper moisture barrier is not installed underneath a coping cap on parapet walls according to avoiding common roof installation mistakes a cd rom produced by the center for the advancement of roofing excellence care ltd. They typically are installed as a one two or three ply roof system. The two most commonly used roofing systems in commercial properties are tpo and modified bitumen.