Flat Roofing in Calgary, AB

Flat and low-slope roofs need different materials and skills than shingles. Calgary flat-roof specialists install and repair torch-on (modified bitumen), TPO, EPDM and PVC membranes.

Ponding water is the enemy of flat roofs. A good flat-roof installation includes proper slope to drains, tapered insulation where needed, and carefully detailed seams and edges.

Signs you need flat roofing

Water pooling for more than 48 hours
Blisters, bubbles or cracks in the membrane
Leaks around drains, parapets or rooftop units
Seams lifting or separating
Membrane over 20 years old

What the job involves

Inspect the membrane, drains and insulation
Recommend a repair or a new membrane system
Remove failed layers and correct slope if needed
Install the new membrane and flash all penetrations
Test drains and clean up

How much does flat roofing cost in Calgary?

Most Calgary jobs land between $8 and $18 per square foot for a new membrane. The final price depends on:

Membrane type
Insulation and slope corrections
Number of penetrations and drains
Access and roof height

Typical ranges for planning only. Your provider gives you an exact price before starting.

Flat Roofing questions

Which flat roof material is best?

Torch-on is common and durable; TPO and PVC are reflective and good for larger roofs; EPDM is cost-effective on simple roofs. Your roofer will recommend one for your building.

How long does a flat roof last?

Most quality membranes last 20 to 30 years with maintenance.

Can a flat roof be repaired instead of replaced?

Yes, local blisters, seams and flashing can often be patched if the rest of the membrane is sound.

Related services

Areas served

Flat Roofing across Calgary and Airdrie, Cochrane, Chestermere, Okotoks, Strathmore, High River, Langdon, Bragg Creek.