Common Types of Commercial Flat Roofs

There are a lot of options for businesses that are looking for a new commercial flat roof. Therefore, since a roof is such a big investment, it is essential for business owners to find out what all these options are before making a decision. So we are going to look at the different types of commercial flat roofs that are available to help you make an informed choice about what is best for your business. Here are the most common types of flat roofs.

Ethylene Propylene Diene Monomer (EPDM)

Ethylene Propylene Diene Monomer is a common type of flat roof used for commercial buildings. These roofs are made from a type of synthetic rubber. This rubber consists of a mix of ethylene propylene and diene, which makes a very durable and flexible flat roof.

This type of roofing has become quite popular, especially in warm climates. It stands up quite well to sunlight and is quite easy to maintain as well. EPDM roofing is most commonly used on low slope roofs, but it can be used on other types of roofs as well.


TPO (thermoplastic polyolefin) or PVC (polyvinyl chloride) roofing are two other options for commercial roofs. These roofs consist of a single layer and are usually either grey or white. Both of these types of materials can be attached with plates and screws or affixed like a rubber roof.

These roofing options have become more common due to their environmental benefits. PVC and TPO roofs can help reduce a business’s cooling and heating bills due to the fact that they are made from highly reflective materials. PVC roofs also have the advantage of being able to be recycled even after they have been used for a number of years.

Built-Up Roof (BUR)

Built-Up Roofing is a more traditional type of commercial flat roof and is also likely the most common type of commercial flat roof. It consists of asphalt, gravel, and hot tar. The roof is made by alternating layers of asphalt and reinforcing fabric finished off with an aggregate, such as gravel or stone. This type of roof is highly durable and waterproof and should last for years. It is also low maintenance and less costly than many other roofing options.

Modified Bitumen

Modified Bitumen is another popular type of flat roof. It is used on low-sloped or flat roof buildings. Modified Bitumen roofing is made from blending either rubber or some synthetic plastic with raw asphalt. This makes the roofing strong and durable. Modified Bitumen roofing comes in sheets made of modified asphalt layered with reinforced fabric. The reinforced fabric is made from polyester or fiberglass or sometimes a mix of these materials. There are a variety of ways to apply this type of roofing. It can be self-adhered, cold applied, hot-applied, heat welded, or mechanically fastened.

Final Thoughts

There are many options for commercial flat roofs, and it is good to learn about these options before deciding on what roof you want for your commercial building. Once you have considered your options, it is a good idea to contact a roofing contractor and discuss these options. A roofing contractor should be able to help you decide which option is best for your commercial building.

Contact Us

If you need a new commercial roof installed, then don’t hesitate to contact North Shore Roofing. Our experienced roofers have three decades of experience helping businesses and homeowners with all of their roofing needs. Call us at (978) 977-3816 and connect with us on Facebook.