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 two most commonly used roofing systems in commercial properties are tpo and modified bitumen. In the absence of a proper drainage system set up on a flat roof water is bound to get collected on the surface. 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. Factory surfacing if applied includes mineral granules slag aluminum or copper.

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. Modified bitumen has a life expectancy of 10 20 years. They typically are installed as a one two or three ply roof system. 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. There are many reasons a pitch pocket fails. The membrane consists of a multi layer sheet of asphalt with polyester or fiberglass reinforcements and plastic or rubber modifiers. Sometimes bitumen roofing products like asphalt shingles can be recycled and used to construct new roads.

One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof. The modified bitumen seals down to the roof so there are no seams. This article describes common defects found on modified bitumen roofs such as buckling cracking granule loss improper installation details leaks. The modified bitumen roofing material is installed in long sections that are 30 35 inches wide.

Modified bitumen cons 1. Problems with pitch pockets a type of roof flashing used to seal penetrations prevail on all types of roofs but are most typical on built up or modified bitumen roofing systems. 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 most common problems include.

Modified bitumen roof defects wear signs life expectancy life extension by coating. Modified bitumen roof life defects wear common defects life of modified bitumen roof effective roof coatings. Modified bitumen roofing was designed for use on buildings that have a low slope or flat roof.