Every roof replacement conversation in the GTA reaches the same crossroads. Homeowner knows the existing asphalt is done, has heard that metal lasts longer, and the neighbour three houses over just put in cedar. Three materials, three price tags, three very different relationships with Ontario winter. We install all three.
We have strong opinions about where each one is the right answer. This post is the honest comparison, the one we'd hand a client at the first site visit if they asked us to write it down.
Before we get into it — the cost breakdown for each material is in the dedicated roof replacement cost post for the GTA. This is the tradeoff comparison, not the pricing comparison. If you want the line-item cost sheet, read that one first and come back. The short version: asphalt is $9,800 to $17,500 installed on a standard GTA home, metal is $24,000 to $42,000, cedar is $28,000 to $52,000. This post is about everything else.
Architectural asphalt shingles — the honest case
Architectural asphalt shingles are what 85% of GTA single-family homes have on their roofs in 2026, and it's what we default to in our quotes because the cost-per-year math is better than any other option. A mid-tier architectural shingle like GAF Timberline HDZ, Owens Corning Duration Flex, or IKO Cambridge, installed over a full tear-off with ice-and-water shield and new flashings, gives you a 25-year roof for about $14,000.
That's $560 per year in amortized material cost on a house-long lifespan. Nothing else comes close on that math.
What asphalt shingles do well: they're available everywhere, every roofing crew in Ontario can install them correctly, the warranty situations are well understood by every insurance adjuster, and the material itself has gotten dramatically better over the past 15 years. GAF Timberline HDZ with the LayerLock adhesive strip is rated for 130 mph winds — that's faster than anything a typical Ontario weather system will throw at it. Owens Corning Duration with the SureNail strip is comparable. These aren't the flimsy three-tab shingles of the 1990s; modern architectural shingles are a genuinely durable product.
What asphalt shingles do badly: they don't last as long as metal, the look is functional rather than premium, and they fail in visible ways when they fail (lifted tabs, missing tabs, worn spots along the south exposure). The failure mode is a homeowner standing on the front lawn looking up at their roof and saying "that's tired." It's not a catastrophic failure; it's an incremental, visible aging that peaks around year 22 to 25 and makes you want a new roof. The 50-year shingles marketed by some brands are a real thing in laboratory conditions and not a real thing in Ontario weather — plan for 25 to 30 honest years.
- Best cost-per-year on a residential roof — about $560/year amortized
- 25 to 30 year honest lifespan in Ontario weather
- Available everywhere, every roofer knows the install
- Wind rating: up to 130 mph on modern architectural lines (GAF Timberline HDZ)
- Failure mode: gradual visible aging, lifted tabs, worn areas on south exposure
- Warranty: 30 to 50 year manufacturer warranty, transferable on many brands
Standing seam metal — the 50-year roof and what it actually means
Standing seam metal roofing is the material we'd install on our own houses if budget were no object. A properly installed standing seam metal roof — 24-gauge Galvalume with a Kynar 500 PVDF coating from Ideal Roofing or Vicwest — is a 50-year roof that doesn't degrade visibly over that lifespan. Year 40 looks like year 5. That's not true of any asphalt shingle on the market, and it's barely true of cedar. The metal roof your parents put on in 1995 is still fine, which is why you notice it.
The two common complaints about metal roofing are "it's loud in the rain" and "it looks too industrial." The first one is mostly a myth — metal roofs installed over a proper underlayment on standard plywood sheathing are roughly the same decibel level as asphalt in the rain. The noise myth comes from metal roofs installed directly on open purlins on barns, where there's no underlayment, no sheathing, and the entire roof is a drum. A residential metal roof sounds like a residential asphalt roof in the rain.
The second complaint is more subjective — some homeowners genuinely don't like the look, and a matte-finish dark bronze standing seam roof does read differently than a charcoal architectural shingle. Whether that's "too industrial" or "cleaner and more modern" is aesthetic preference, not material fact.
What metal does well beyond longevity: fire resistance (Class A rating out of the box), hail impact resistance (with 22-gauge steel and above, metal roofs shrug off hail events that dent or crack asphalt), shed-snow behaviour in Ontario winter (snow slides off a metal roof in large sheets instead of melting and refreezing into ice dams), and resale value at sale. In eight years of replacing asphalt roofs on houses where the previous owner had installed asphalt, we have never replaced a standing seam metal roof in that timeframe because nobody has needed to.
What metal does badly: the upfront cost is real (2.5 to 3x the cost of asphalt), the install quality matters more than asphalt (a badly installed metal roof leaks at the seams in ways that are harder to fix than asphalt), and snow shed is a genuine hazard above any entryway or walkway. We always spec snow retention bars or guards on metal roofs above doors and driveways in Ontario — the cost is $1,800 to $3,600 on a standard job and it's non-negotiable.
- 50-year honest lifespan in Ontario weather — doesn't degrade visibly
- Class A fire rating, high hail resistance, great for ice-dam-prone homes
- Cost-per-year: about $640 on a $32,000 roof — barely more than asphalt
- Noise myth is overstated on residential installs with proper underlayment
- Snow shed is a real hazard — always spec snow retention above entries
- Install quality matters more than asphalt; pick a crew that specifically knows metal
Cedar shake and cedar shingle — the aesthetic case
Cedar shake and cedar shingle roofing is a material we install a few times a year, almost always for clients who've already decided they want it before calling us. The reason is simple: cedar has a look that neither asphalt nor metal can replicate. A hand-split Western red cedar shake roof reads as architecture in a way that no other residential roofing material does — the warm wood tones, the irregular shake-to-shake variation, the way it weathers to a silvery patina over time. Homes with cedar roofs in Rosedale or Old Oakville look different, and you can tell from the street.
What cedar does well: the aesthetic is unique and defensible, the material breathes (which can actually help prevent ice dams on well-ventilated roofs), and cedar has legitimate sound-damping properties that metal doesn't share. On a heritage home where the original roof was cedar, re-roofing in anything else is arguably an architectural violation. We have clients in historic districts who would not legally be allowed to install asphalt under their heritage restrictions.
What cedar does badly: the cost-per-year math is the worst of the three materials by a significant margin. A $38,000 cedar roof lasting 30 years with regular maintenance ($300 to $600 every 5 to 7 years in pressure-washing and treatment) works out to roughly $1,300 per year all-in. Compare that to asphalt at $560 or metal at $640, and cedar is more than twice as expensive per year for a roof that doesn't last significantly longer.
Additionally, cedar has a Class C fire rating without treatment (Class B with borate pressure treatment, Class A with impregnated fire retardant that costs another $2,400 to $4,800 on a standard job). Insurance premiums for cedar-roofed homes in the GTA are typically $200 to $500 higher per year than asphalt.
- Unique warm-wood aesthetic that no other roofing material replicates
- Breathable — can reduce ice dam formation on well-ventilated roofs
- 25 to 40 year lifespan with regular maintenance; shorter on untreated cedar
- Cost-per-year is the worst of the three materials — about $1,300/year
- Class C fire rating without treatment; higher insurance premiums
- Best fit: heritage homes, historic districts, clients who specifically want the look
The questions nobody asks but should
A few questions that deserve more attention than they get. Are solar panels compatible with all three materials? Yes, but metal is dramatically easier — the standing seams provide a mounting point that doesn't require roof penetrations. Asphalt requires penetrations with proper flashing, which is fine if done right but adds leak risk. Cedar is the hardest because the mounts compress the shakes and create failure points. If you're planning a solar install in the next 10 years, bias your material choice toward metal.
How much does ventilation matter on each roof? A lot, and it's the thing most roofers underprice. A properly ventilated asphalt roof lasts 25 to 30 years in Ontario. A poorly ventilated asphalt roof (no ridge vent, blocked soffits, or a cathedral ceiling with no air gap above the insulation) lasts 12 to 18. Metal is more forgiving but still benefits from good ventilation.
Cedar absolutely requires it — cedar on a poorly ventilated roof develops mold and rot within 10 years. Any re-roof quote should include a conversation about attic ventilation, and the answer should be either "your existing ventilation is adequate" or "we're upgrading it as part of this job." Silence on the topic is a warning sign.
What about flat and low-slope sections? None of the three materials on this list are appropriate for flat roofs or slopes under 2/12 — those need EPDM rubber, TPO, or modified bitumen membrane roofing, which is a completely different scope. Many GTA homes have a mix of pitched and flat roof sections (addition rooflines, sunrooms, carports) and the flat sections get priced separately. A typical flat roof section runs $12 to $18 per square foot installed. Don't let a roofer quote you metal or cedar on a flat roof section — they're the wrong materials and it will leak.
“You told us all three numbers and then said 'we'd pick metal on our own house but we'd pick asphalt on yours because your gutters are old and the extra money should go there first.' That was the moment we trusted you.”
The honest recommendation is almost always driven by the house, not by the material. A 1960s bungalow with original gutters, 50-year-old sheathing, and $18,000 in the budget gets asphalt because the rest of the envelope needs the saved money more than the roof does. A newly rebuilt Mississauga home with a 50-year resale horizon gets metal because the math is good and the upgrade is permanent. A heritage home in Old Oakville gets cedar because the alternative is architecturally wrong.
| Material | Installed cost | Lifespan | Best for |
|---|---|---|---|
| Asphalt shingle (GAF Timberline HDZ) | $8,500–$14,000 | 20–25 years | Most GTA homes, most budgets |
| Standing-seam metal | $22,000–$38,000 | 40–60 years | Snow-load roofs, long-hold owners |
| Cedar shake | $35,000–$60,000 | 25–35 years | Heritage homes, insurance-friendly zones |
There's a right answer for each of these, and none of them are "whichever material the roofer wants to sell you." Our roofing and siding service works from your house backward, not from a material forward. For storm-related claims, our drone roof survey walkthrough covers the insurance side.
