EPDM Rubber Roofing in Toronto & the GTA

For a plain rectangular roof — a laneway garage, a porch roof, a simple rear addition — an EPDM rubber roof is hard to argue with. The membrane comes in sheets big enough that many small Toronto roofs are covered in a single piece, which means no field seams at all. No seams is a beautiful thing on a roof that spends four months a year under snow and ice.

EPDM's habits are worth knowing. The rubber itself shrugs off our freeze-thaw swings and stays flexible in deep cold, but the glued seams and details are where the workmanship shows — a rushed lap or a poorly dressed corner is where an EPDM membrane fails, almost never in the open field. Black rubber also runs hot in July, which matters on a roof over a bedroom more than a roof over a car.

We quote EPDM installation where it genuinely fits: simple shapes, modest foot traffic, budgets that want the most membrane for the money. On a roof with a dozen penetrations and walls on three sides, we'll usually steer you to two-ply mod bit instead and tell you why. Rubber roof repair on existing EPDM — re-glued seams, patches, new flashings — is quoted the same straightforward way.

• Tear-off of the old roofing or preparation of a clean, sound substrate
• Deck repairs and replacement of any rotted sheathing before the rubber goes down
• Insulation or protection board above the deck as the assembly needs
• Fully adhered EPDM membrane, in one piece wherever the roof size allows
• Factory-seam tape and primer on any joints, not caulking and hope
• Uncured flashing details at corners, walls, stacks and skylight curbs
• Metal edging and termination bars at perimeters and walls
• Drain and eavestrough connections, plus cleanup and disposal

• Roof size and shape — one uncut sheet is quick; a roof needing several seamed panels takes longer
• Membrane thickness, commonly 45 or 60 mil; thicker costs more and takes more abuse
• What's under the old roof: layers to strip, wet insulation, deck repairs
• Number of penetrations and wall terminations, since EPDM details are hand-built
• Whether insulation is being added above the deck, which changes edge and flashing heights
• Access for tear-off disposal and material handling

Every home is different, so we don’t publish flat prices — the quote is free and based on your actual job.