How Long Should A Bitumen Roof Last

But how can this be you say.

How long should a bitumen roof last. Just because a roof is classified as a flat roof that is a roof with a slope of less the 2 12 does not mean it is a modified bitumen roof. A flat roof is not flat it just has a very low slope. A ribbed metal panel roofing system featuring concealed fasteners will offer a longer lifespan ranging from 30 to 50 years depending on the environment. Typically a 30 year roof will last on average 12 15 years in more extreme climates such as we have here in texas.

Modified bitumen roofs are reputed to last anywhere from between twelve to twenty years. Here is what you should know about the lifespan and performance of asphalt shingles. On average asphalt shingles can be expected to last less than 20 years depending on where you live and the type of weather that your roof is regularly exposed to. While many types of roofs last longer than 15 years some can hold up well for 50 years or longer barring a serious storm or a large fallen tree.

Not surprisingly cheaper roofing materials won t. Other factors that can influence how long an asphalt roof lasts include the roofing underlayment ventilation and quality of installation. To properly identify a modified bitumen roof you can look at the featured image of this post or the pictures below. Regardless of how the material is applied self adhesive sheets hot mopped asphalt or cold applied adhesives the seams are usually melted together which help stop leaks.

Cleaning and maintenance can also play a role. What affects their lifespan and causes damage. The more premium designed asphalt shingles can last up to 50 years. 25 year roofs lasting 9 12 years on average.

How quickly and frequently asphalt shingles have to be replaced depends on the style of shingle chosen location and the severity of storm damage they sustain. The average expected life of a metal roof is between 30 and 50 years although a well maintained metal roof may last longer than 50 years. Bitumen roofs are one of the longer lasting types of flat roofing materials easily lasting 20 years or more. Of course roof longevity is in no small part based upon the climate of the prevailing area and the amount of wear and tear that occurs over the course of the years.

Modified bitumen roofing materials choices costs life expectancy characteristics examples of defects in modified bitumen roofs.