Commercial Roofing in Calgary, Edmonton and Vancouver

Commercial roofing projects in Calgary, Edmonton and Vancouver come with great responsibility.

Maintaining safety for businesses, employees, and visitors is essential and a defective roof puts everything and everyone at risk.

It always pays to have high-quality roofing installed, regularly maintained, and expertly repaired whenever necessary.

With experience in installation, maintenance and emergency roof repair dating back to 2007 in Calgary, 2014 in Edmonton and 2021 in Vancouver,  you can entrust your commercial roofing needs to United Roofing.

We invest heavily in safety and quality and can handle large-scale projects for all types of roofing, including flat roofs, low- and steep-slope roofing, and architectural standing seam roofing.

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Our Commercial Roofing Services

Whether you need a new commercial roof installed, a regular inspection plan put in place, or emergency repairs performed, the team at United Roofing can help.

We put safety first and always use quality materials and workmanship so that your roof can withstand the inevitable wear and tear of Alberta’s harsh weather.

We can work on any of the following types of commercial buildings:

Commercial Roofing Calgary and Edmonton
  • Retail buildings
  • Large or small industrial buildings

  • Offices and office towers

  • Condominiums and apartment buildings

All work is backed by generous warranties, providing peace of mind that you’ve placed your roofing project in the best possible hands.

Commercial flat roofs are typical features of the Albertan landscape.

They are cost-effective to install, relatively easy to maintain, and allow for efficient use of space.

We can help you with the installation of a new flat roof or with maintenance and repairs of your existing roof.

Emergency Roof Repair in Calgary and Edmonton

Emergency Roof Repair

Has your roof been damaged by an overnight storm or the hazardous Alberta winds?

A leaky roof in the middle of Alberta’s winter is certainly no fun.

We will come out at short notice and ensure that your roof is secured and restored to peak condition so that it can continue to protect you and your business.

Roof Repair in Calgary and Edmonton

Roofs get damaged and suffer wear and tear over time. In Alberta, with our rough climate, it’s to be expected.

We’ll restore your flat or sloped commercial roof to its former glory so that it keeps on protecting your business into the future.

roofing contractors

Roof Inspections

As part of a regular maintenance plan, we can initiate roof inspections to ensure you detect problems early before they become major issues.

We provide you with a report outlining any roofing issues we identify. This can save money, extend the life of your roof, and prevent the inconvenience of repairs further down the line.

A regular, site-specific maintenance plan for your roof is a good idea for every business in Calgary, Edmonton and Vancouver .

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Different types of commercial roofs

Flat roofing is the most popular type of roof for business premises in Alberta because they are practical and economical.

Despite their name, they are usually constructed with a very slight slope to allow for some water runoff (between 1/4 to 1/2 inch per foot).

Flat roofs generally require more maintenance than sloped roofs due to snow, ice, water, and debris collecting on them.

Low-slope roofs are constructed with a slope between 2″ in 12″ and 4″ in 12″. This is a gentle slope that allows the roof to drain water easier than with a flat roof and is usually constructed with a membrane to seal the roofing material.

Low-slope roofs are relatively common on commercial buildings in Calgary and Edmonton.

Steep-slope roofs are constructed with a slope of 3:12 or greater. So, for every 12 horizontal inches, the roof rises three vertical inches or more.

These roofs are low maintenance due to rapid water runoff and few problems with debris collecting. However, they are less common with commercial properties than with residential homes.

Standing seam roofs are constructed from metal panels.

The “standing seams” are the connections between the panels, which run vertically and are formed by folding and crimping the edges.

These roofs are particularly suitable for windy areas and have a good fire rating.


Alberta’s weather places high demands on your roof. It’s therefore important to choose the right material that can withstand the worst of the elements to keep you safe.

Which material is best for Alberta’s weather?

There is no single answer to this question. It depends on the location, local weather, purpose, and proportions of your roof, amongst other factors.

Typically, in Calgary, Edmonton and Vancouver, you will see these materials used commonly on commercial roofing:

Metal Roof

Metal Roof in Calgary and Edmonton

Metal is one of the most durable, weather-resistant, and fire-resistant materials for commercial roofs.

It is also quite versatile because of its strength and lightweight. Metal roofs can be constructed in a range of designs, including flat, low-slope or architectural standing seam designs.

Built-up roofing (BUR)

Built-up Roof in Calgary and Edmonton

BUR is a layered approach to roofing and is a traditional system used on flat roofs: there is a bottom layer or two of the insulation board with tar or asphalt layers alternating with roofing felt, and a layer of gravel on the top.

These types of roofs are tough and highly weather resistant.

Green roofing

Green Roofing Calgary and Edmonton

We can even help you create a vegetated rooftop for your business.

This demonstrates to the world that you are doing your bit to increase green space and protect the environment.

Modified Bitumen Roof

Modified bitumen roof Calgary and Edmonton

Modified bitumen is an asphalt-based material (with a mineral top coating) that has been a solid roofing option for businesses in Calgary and Edmonton for decades.

The technology has advanced and improved the material. It is lighter than BUR and is less troublesome to install.

Membrane Roofing

Membrane Roofing Calgary and Edmonton

Many commercial roofing projects use a single or double-layer membrane that helps to protect properties from the harsh climate and from fire, and also extends the life of the roof. Membranes can either be fixed with glue or loose laid and topped with rock or pavers.

The main material used is insulation board, with the membrane made from synthetic rubber or plastic formulations (SBS, EPDM or TPO are popular). SBS is a type of modified bitumen. EPDM is a very durable synthetic rubber often used on low-slope buildings and TPO is another cost-effective single-ply option.

Commercial Roofing

Building Envelope


Maintenance & Repair

Why Choose Us

With over 250 staff, United Roofing Inc. is large enough to handle large building projects but small enough not to have lost the personal touch.

There are many reasons why homes and businesses have chosen us for their roofing and building envelope projects down the years.

These are the main five reasons:

  • Safety record: our safety record is second to none and is recognized by our Workplace Safety COR designation. We put the safety needs of clients and employees above all else and, in the event of an accident, we are fully insured.

  • Quality of workmanship: our technicians are highly trained waterproofing experts experienced at installing, maintaining and repairing all kind of waterproofing systems.

  • Experience: we’ve been helping home and business owners in Alberta install, repair, and maintain their roofing since we started out in 2007.

  • Affordability: we’re good but we don’t price ourselves out of your league; we’re affordable for most Alberta businesses.

  • Customer service: it’s not just a buzz phrase for us. We mean it and always strive to provide superior levels of communication and service on the projects we manage.

What can you expect from us?

We’ll work closely with you to install and maintain the right roofing solution for your building and your budget.

You can expect:

  • High-quality work with long-term warranties

  • Attention to detail

  • First-class contractors committed to quality

  • Top-class materials from trusted manufacturers

  • Affordable solutions for all scope of building projects

Once we’re appointed, a dedicated project manager will help you arrange:

  • Scheduling

  • Installation details

  • Safety procedures

  • Quality control


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