A Look at the Pros and Cons of What is Modified Bitumen Roofing
If you are considering a new roof for your business or home, you may be wondering what is modified bitumen roofing. The phrase “modified bitumen roofing” can sound unfamiliar and you may not know what it means. However, understanding the basic premise behind this process can help you decide if this roofing system is right for your needs.
Modified bitumen is asphalt that has been treated with UV rays. Once the asphalt is exposed to the sun, the urethane breaks down into tiny droplets that form a protective coating on the roof. When the weather is hot, the droplets expand to help water runoff from the roof. When the weather is cold, the droplets contract back into their normal state, leaving an excellent sheen on the roof.
One of the main benefits of using modified bitumen is that it is much stronger than most other flat roof systems. These flexible materials do not buckle under pressure and are often able to hold their initial shape without many added structural components. They are also more resistant to weathering than other types of asphalt used for roofing. However, there are some disadvantages to this type of roofing. Namely, they have a much shorter lifespan when compared to asphalt roofing systems and once they are exposed to UV rays, they are unable to be repaired.
Other factors you need to consider when deciding whether to use modified bitumen roofing are its physical resistance to weathering, its ability to maintain its integrity and how long it will last. All roofing materials are susceptible to weathering. However, asphalt roofing systems are at a greater risk of weathering prematurely because of how poorly they are maintained. Asphalt roofs are porous and have a lower degree of natural oils which keep them flexible and safe from moisture. Over time, these oils start to break down and are absorbed into the structure of the roofing material which, in turn, weakens it and makes it vulnerable to weathering. The reduced flexibility can also lead to blistering during severe weather.
If you are planning on using these systems, you must also consider its ultraviolet ray protection (UV ray protection). This is especially important if you live in an area that experiences high levels of UV rays since prolonged exposure to the sun may damage your skin and your immune system. It is best to avoid using these types of roofs in areas where you may experience prolonged sunlight because of the health risks associated with prolonged exposure to UV rays. Its UVR protection is one of its most important benefits which explains why it is one of the two materials used in the manufacturing of this type of roofing material.
Although the pros and cons of this type of roofing system are mostly positive, there are some negative points as well. One of these includes the price which can be quite expensive especially in urban areas where its application is confined. In addition to that, its use is limited to flat roofs only because of its inability to be installed on pitched roofs or those with at least a slant of less than forty-five degrees. Also, it cannot be used on roofs that are covered by clay or ceramic tiles.