Commercial Services

Commercial Flat Roofing Company Edmonton

We’ll install a brand new flat roof for your commercial building!

Here at Knights Roofing, we perform new construction and re-roofing for flat roof commercial buildings in Edmonton.

Re-roofing can be quite intrusive for the property owner and tenant as there are people in and around the structure as the roofing is being completed. Knights Roofing takes the utmost care and diligence in the safety of the work site and provides tenants with up-to-date information and progress to help the project go smoothly. Commercial flat re-roofing is typically needed because of a recent or past concern about the current roof that is causing a failure that can’t be fixed through maintenance and repairs.

Commercial Building Types We Serve

We can perform flat roof services on any commercial building! Building projects we’ve worked with include:

Commercial Flat Re-Roofing

Do you find yourself needing to call for maintenance and repairs of your roof more than usual? Continuous repairs may be a sign that your commercial flat roof has failed, and it’s time for a new roof.

Knights Roofing will attend the site with the owner and walk the roof to determine the best course of action based on the requirements of the tenants and the building. A full commercial flat roof replacement project can be a lot of work and time to complete, but with the right strategic plan and materials, we can put together a replacement roof system that will suit the building and the needs of the owner for decades to come.

Signs Your Commercial Building Needs a New Roof:


You find yourself calling for roof repairs regularly


There is moisture leaking through the roof


The roof is sagging or bubbling


Water is pooling on the roof during extreme weather


Your energy bills are skyrocketing, showing your roof isn’t airtight

Commercial New Construction Flat Roofing

New Construction roofing is an important part of building a new commercial space. Ensuring your roof is built with the highest quality materials and that architectural requirements are followed to the letter is imperative to ensure your roof doesn’t face issues down the road. Trust Knights Roofing to complete your new commercial construction flat roofing project correctly, the first time.

Frequently Asked Questions

The timeline to replace a flat roof depends on a few variables, such as the size of the roof, the roofing material your contractor is installing, and the season. For instance, during a rainy season or winter, you’ll likely experience more weather-related delays. Our roofing experts will work with you to find the right timeframe for your flat roofing needs and create a schedule based on the weather and supplies available for the replacement.

As a general rule of thumb, most commercial flat roof replacements take anywhere from three to five days to complete. 

Commercial flat roofs often utilize materials that are known for their durability and waterproofing capabilities. Some of these roofing materials include: 

  • Ethylene Propylene Diene Terpolymer (EPDM) rubber
  • Thermoplastic Polyolefin (TPO)
  • Polyvinyl Chloride (PVC)
  • Built-up Roofing (BUR) with asphalt or coal tar
  • Modified Bitumen (Mod-Bit) roofing


These materials are selected for their ability to withstand harsh weather conditions, provide effective waterproofing, and suit the requirements of flat or low-slope roofs commonly found in commercial buildings.

Yes, you can reroof over an existing commercial flat roof, depending on its condition and the local building codes for Alberta. During a commercial roof inspection, we will consider factors like the condition of the existing roof, the type of new roofing material, structural integrity of the building, and the building code before providing a recommendation. 

Contact us today to book a commercial roof inspection and receive your free estimate for a commercial flat roof installation.