Modified Bitumen (Torch-On) Roofing in Scarborough

Getting modified bitumen (torch-on) roofing sorted in Scarborough starts here: say what the roof is doing, share photos if you have them, and we'll come back with a free, no-pressure quote.

The rest of this page covers how the job usually goes in Scarborough and what affects the quote, so you know what you're looking at before you ask.

Scarborough's post-war housing stock has forgiving roof pitches and honest framing, but sixty-plus years of re-roofs means old layers, tired venting and insulation levels that were fine in 1965 and aren't now.

For modified bitumen (torch-on) roofing specifically, the Scarborough roof stock is part of the picture: Scarborough is dominated by 1950s-70s subdivision housing whose roofs age in unison, so whole streets often re-shingle within a few years of each other.

Scarborough was farmland until the postwar boom filled it with subdivisions, and that history is written across its rooftops: enormous tracts of 1950s-70s bungalows, semis and split-levels whose roofs were all built — and all age — on roughly the same clock. When one house on a Scarborough crescent needs new shingles, its neighbours usually aren't far behind. Along the southern edge, homes near the Bluffs take real wind off Lake Ontario, while inland streets contend more with tree debris and winter ice damming.

The upside of all that consistency is predictable, efficient work: simple rooflines, honest pitches and easy access make most Scarborough re-roofs straightforward tear-off-and-replace jobs. The key decisions are shingle quality, ventilation upgrades and ice-and-water protection at the eaves. If your roof is showing its age, a quote costs nothing to request.

• Scarborough is dominated by 1950s-70s subdivision housing whose roofs age in unison, so whole streets often re-shingle within a few years of each other.
• Bungalows and split-levels with simple gable and hip rooflines make most Scarborough re-roofs efficient tear-off-and-replace projects.
• Homes near the Scarborough Bluffs face elevated wind exposure off Lake Ontario, favouring high-wind-rated shingles and careful edge fastening.
• Many original Scarborough attics were built with minimal insulation and ventilation, a setup that promotes ice damming in freeze-thaw winters.

Rather than a made-up number, here's an honest look at what affects the cost of modified bitumen (torch-on) roofing in Scarborough:

• Roof complexity — mod bit earns its keep on cut-up roofs, but every wall and curb is hand-detailed labour
• How many shingle layers are already on the roof — many Scarborough homes of this era have been re-roofed more than once, and extra tear-off is extra labour and disposal.
• Torch versus self-adhered application; self-adhered membranes cost more in material but remove the flame risk
• Tear-off depth: layers of old roofing and any waterlogged insulation underneath
• Cap sheet colour and grade — white granules reflect more heat and cost a little more
• Insulation added above the deck and the flashing height changes that come with it
• Access for bins, propane and material hoisting

For the full breakdown of what modified bitumen (torch-on) roofing involves, see our Modified Bitumen (Torch-On) Roofing guide — then request a free Scarborough quote for your actual job.