Types Of Flat Roofs
Flat roofs are a common type of commercial roofing solution that act as a durable and waterproof barrier against the elements. However, there are multiple different types of materials that can be used to create a flat roof, each of which has a different set of distinctive associated characteristics. Understanding the differences in what each type of flat roof has to offer can help you choose the best roofing material for your commercial property.
EPDM Rubber Roofing
EPDM rubber roofing (EPDM stands for Ethylene Propylene Diene Monomer, which is the technical term for the type of rubber used) provides a waterproof roofing solution to your building. EPDM roofing can be made out of recycled rubber, which makes it an environmentally friendly choice for buildings that are trying to stay sustainable and green throughout the construction process. It is also relatively easy to install, coming large rolls that are lightweight and can be rolled onto the roof in a short amount of time, reducing installation costs.
However, the rubber sheeting that makes up EPDM roofs can be easily torn due to physical trauma that it can experience over the course of its lifetime, which will require repairs that will drive up maintenance costs.
Built-up roofing is a flat roofing solution that makes use of a mixture of tar and gravel to create a highly durable layer of roofing material on your roof that is able to withstand a great deal of physical pressure without cracking or leaking. This also means that built-up roofing has a long lifespan, reducing maintenance and repair costs.
However, built-up roofing can require reinforcement of the roof supports due to the weight of the material itself, which can pose an added expense. Additionally, the installation process is lengthy, and the materials associated with built-up roofing are more expensive than the simple rubber rolls of EPDM roofs, further driving up costs.
Modified Bitumen Roofing
Modified bitumen roofing is made out of a similar material mixture of built-up roofing, but comes in pre-cut rolls, much like EPDM roofing. This allows for your flat roof to be easily and simply covered in a roofing material that is more durable than EPDM rubber, but without the weight, time, and expense of built-up roofing.
The main disadvantage associated with installing modified bitumen roofing on your flat roof is the fact that the installation process requires the use of an open flame, which poses a risk (albeit a manageable one) on the worksite that needs to be taken into consideration.
To learn more about these flat-roof materials, contact a roofing contractor near you.