top of page

Different Types of Flat Roofs and Their Advantages

Two workers are working on roof

Flat roofs are a type of roof that, as their name suggests, are flat instead of slanted. This distinctive design carries a set of pros and cons when compared to traditional peaked roofs.

However, not every type of flat roof is made the same. Different flat roofs are made out of different materials and installed in various ways.

If you're looking for flat roofing in Edmonton, and want to choose a roof type that will suit your needs, keep reading for a comprehensive overview of the pros and cons of flat roofing types!

Built-up Roofing

Built-up roofing is one of the more common types of flat roofing on the market. Built-up roofing is made out of different layers of materials, with boards laid down first and then covered with asphalt or tar and then covered in rocks or gravel.

This is an extremely durable roof that can withstand most weather conditions without leaking. Built-up roofs are also very easy to maintain and are among the most affordable types of flat roofs.

However, built-up roofing is extremely heavy. This means that your building must have adequate structural support to hold it up. You may have to have your roofing supports reinforced if you choose to go with this type of roof.

Installation can also be time-consuming and difficult, largely because of the number of fumes that are involved in the process.

EPDM Roofing

EPDM, or ethylene propylene diene monomer, roofing is an elastic membrane style roof. The plastic material is spread out over your roof and secured at the sides.

Despite being made out of relatively thin plastic, EPDM plastic is durable and can withstand tearing. The lightweight nature of EPDM roofing means that it can be installed quickly and easily on any flat roof.

However, EPDM roofing is hard to install on flat roofs that have features, like vents or HVAC units, protruding from the surface. Additionally, while EPDM can withstand some tearing, it can develop holes and leaks if debris falls on the roof.

Modified Bitumen

Modified bitumen flat roofs are made out of asphalt that has a thin coating of materials on top of it. It is installed in sheets that are melted down with an open flame to ensure that it sticks to the roof's base layer.

However, modified bitumen roofs do require professional and expert installation. The open flame used to melt the sheets to the roof means that the building shouldn't be occupied at the same time in case of an accident. Further, modified bitumen roofing sheets are susceptible to punctures if debris falls on the roof, which can lead to leaks.

Install Flat Roofing in Edmonton

Not all flat roofs are created equal! Each type of flat roof is best suited to a specific type of roof, building, and set of weather conditions. Understanding the pros and cons of each type of flat roofing material can help you pick the best roof for your building's situation.

If you're looking to install flat roofing in Edmonton, contact us today!


bottom of page