Commercial roofs in Ottawa are almost all flat or low-slope, so they need a continuous, watertight membrane. EPDM rubber is durable and good value on low-traffic roofs. TPO is a white, heat-welded membrane that reflects sun. Modified bitumen is rugged where a roof takes foot traffic. We look at the slope, drainage, foot traffic and budget, then recommend the system that will last on your building.
We build in slope and drainage so water leaves the roof instead of sitting on it.
Heat-welded or fully bonded seams that do not open up like old glued laps.
Careful membrane detailing at walls, drains, curbs and rooftop penetrations, where flat roofs almost always fail.
We match EPDM, TPO or modified bitumen to the roof rather than installing whatever is on the truck.
We walk the roof, check the slope, drains and seams, and give you a clear written quote.
We agree on the system, the materials and dates that avoid disrupting your operations, and pull any permit needed.
Our crew repairs seams, flashing and drains, or tears off the old roof and installs the new membrane.
We haul the debris and back the work with a written guarantee.
RoofRoof installs, repairs and replaces flat and low-slope membrane roofs on commercial buildings, additions and multi-unit properties across Ottawa. In the east end that includes the business parks and industrial units around the Ottawa Business Park and Innes Road in Gloucester. For more on the three membrane systems, see our flat roofing page.
Commercial flat roofs rarely fail in the middle of the field. They fail at the seams, the drains, the flashing at walls and curbs, and around rooftop penetrations. If the membrane has life left and the problem is local, we repair it. If the membrane is failing across the roof, we tell you that replacement is the better spend.
Roofing on a working building has to fit around tenants, customers and staff. We agree on dates before we start, schedule the work to avoid disrupting your operations, and haul the debris when the job is done.
On our cost calculator, flat roof installs run $9 to $15 per square foot before HST, depending on the membrane and the roof. Commercial roofs are quoted per building after a free inspection, and seam or flashing repairs on a flat roof usually run $400 to $1,200.
It depends on the roof. EPDM is durable and good value. TPO reflects sun and can lower cooling costs. Modified bitumen is rugged where a roof takes foot traffic. We look at the slope, drainage, foot traffic and budget, then recommend the fit.
Yes. For businesses we schedule the work to avoid disrupting your operations, and we agree on the dates before we start.
Yes. We carry liability insurance and our crews are covered by WSIB. Property managers can ask for proof of coverage before work starts.
If the membrane has life left and the problem is a seam, a flashing or a drain, we repair it. If the membrane is failing across the roof, we tell you that replacement is the better spend.
Yes. Our 24/7 emergency line covers commercial buildings. We stop the water first, then quote the permanent repair in writing.
A properly installed EPDM, TPO or modified bitumen roof typically lasts 20 to 30 years in Ottawa. Drainage and flashing details matter more than the brand.