
Metal Roof vs Shingles: Which Suits a Hamilton Home? (2026 Guide)
Updated November 6, 2026
Direct Answer
Metal roof vs shingles comes down to how long you plan to stay and what your roof can take. Standing seam steel costs about double what architectural asphalt shingles cost installed and lasts roughly twice as long, 50 years and up against 22 to 30 [5]. In Hamilton, switching shingles to metal needs a building permit [1].
TL;DR
Shingles cost about half as much upfront; standing seam lasts about twice as long.
Switching from shingles to metal in Hamilton needs a building permit; re-shingling with the same material doesn't.
The shingle lifespan to judge by is 22 to 30 years, not the old 15 to 20 year organic felt figure.
The rain noise gap inside a finished house is about 6 dBA.
Metal sheds snow and needs snow guards; shingles hold snow and rely on eave protection and attic ventilation.
Class H shingles and standing seam both carry serious wind ratings; ask for the class, not an mph figure.
One liner: Pick metal for a simple steep roof you'll keep 20 plus years, pick shingles for a complex roof or a shorter stay, and get the deck and ventilation done right either way.
Key Numbers
Stat | What it measures | Source |
|---|---|---|
$5.50 to $8.50 per sq ft before HST | Architectural shingles, installed | Builders Ontario, 2026 [5] |
$13 to $22 per sq ft before HST | Standing seam steel, installed | Builders Ontario, 2026 [5] |
22 to 30 years in Ontario conditions | Architectural shingle lifespan | Builders Ontario, 2026 [5] |
50 years and up | Standing seam lifespan | Builders Ontario, 2026 [5] |
46 dBA vs 52 dBA | Rain noise, shingles vs metal over a solid deck | ATAS, Lulea University study, 2018 [8] |
About 61 dBA | Rain noise, metal over open framing | ATAS, Lulea University study, 2018 [8] |
150 mph basic wind speed | ASTM D7158 Class H shingle wind rating | ARMA, 2024 [4] |
900 mm up the slope, to 300 mm inside the exterior wall | Required eave protection on shingle roofs | Ontario Building Code 9.26.5.1, 2024 [9] |
120 months from original installation | Transferred shingle warranty cap | IKO Canada Limited Warranty, 2025 [12] |
A few cents per square metre per year | Reflective roof net energy effect, Toronto model | Hosseini and Akbari, Concordia, 2014 [14] |
Metal roof vs asphalt shingles at a glance
In short: Shingles cost about half as much and stay quieter; standing seam lasts about twice as long and sheds snow. The table below scores both on the eight things that change the decision.
Here is how metal roof vs asphalt shingles stack up on the things that change the decision, with lifespan and cost figures from Builders Ontario's 2026 roofing cost guide [5].
Factor | Standing seam metal | Architectural asphalt shingles |
|---|---|---|
Lifespan | 50 years and up [5] | 22 to 30 years in Ontario conditions [5] |
Installed cost (before HST) | About $13 to $22 per sq ft [5] | About $5.50 to $8.50 per sq ft [5] |
Look | Long vertical panels, concealed fasteners, 20 plus colours | Layered, textured, blends with most Hamilton streetscapes |
Noise | Can be louder in rain on an open deck; little difference over a solid deck with underlayment | Quiet, the mat and granules absorb sound |
Snow and ice | Sheds snow in sheets, needs snow guards above doors and walks | Holds snow, relies on attic ventilation and eave protection to limit ice dams |
Wind rating | Tested by panel system, ask for the uplift test report | Class H shingles rated to 150 mph under ASTM D7158 [3] [4] |
Warranty type | Paint finish warranty, often 40 years, plus a separate substrate warranty | Lifetime limited warranty, non-prorated for a set number of years, then prorated |
Maintenance | Check fasteners and sealant at flashings every few years | Replace lifted tabs, watch for granule loss, clear eavestroughs |
Southcote installs both, so the comparison on its standing seam and shingle roofing page is the same one laid out here: the right roof is the one that fits your house, your budget and how long you plan to keep it.
Switching from shingles to metal in Hamilton: the permit step most guides skip
In short: Hamilton requires a building permit to change roofing material. Re-shingling with the same material needs none. Ask your contractor to carry the permit and the inspection.
If you replace asphalt shingles with asphalt shingles in Hamilton, you don't need a building permit. If you replace them with standing seam metal, you do. The City of Hamilton lists "replacing roofing or exterior cladding with a different material" under projects that require a permit, and "re-shingling a roof with the same roofing material" under projects that don't [1].
That one line changes the metal roofing vs asphalt shingles decision more than most online guides admit. Picture the same bungalow in Ancaster with two quotes on the kitchen table. Quote one, new architectural shingles: the crew strips the roof, inspects the deck, lays underlayment and shingles, and leaves. Quote two, standing seam steel: the same tear-off and deck check, plus a permit application before the first panel goes up and a City inspection before the file closes.
The permit isn't a reason to avoid metal. It's paperwork, and the cost of the metal roof already dwarfs it. What matters is who carries it. Ask your contractor to handle the permit application and the inspection as part of the job, and get that in writing on the quote. If a quote for a shingle to metal switch in Hamilton doesn't mention a permit at all, that's a question to ask before you sign.
Roof change | Hamilton building permit |
|---|---|
Asphalt shingles to asphalt shingles | Not required, same roofing material [1] |
Asphalt shingles to standing seam metal | Required, different material [1] |
Metal panels laid over old shingles | Required, still a change of material [1] |
Two things to keep in mind. First, "Hamilton" here means the amalgamated city, so Ancaster, Dundas, Stoney Creek, Waterdown, Glanbrook and Flamborough all fall under the same Building Division rules [1]. Second, Burlington is a separate municipality with its own building department, so Burlington homeowners should confirm the rule with their city before planning a material switch.
Advice to lay a metal roof over old shingles to save on tear-off shows up on plenty of roofing sites. Whatever the merits of that approach for a given roof, it's still a change of material, so in Hamilton the permit step stays. If you'd rather talk it through on your own roof, request a roofing estimate and raise the permit question in that first conversation.
Lifespan: how long each roof lasts in Ontario weather
In short: Metal runs 50 years and up, shingles 22 to 30. The 15 to 20 year figure still circulating belongs to organic felt shingles, which Canada's current standard no longer covers.
On lifespan, metal roofing vs asphalt shingles isn't close. Builders Ontario puts architectural shingles at 22 to 30 years in Ontario conditions and standing seam steel at 50 years and up [5]. Take a 1965 two-storey in west Hamilton and look sixty years ahead: that's two shingle roofs, maybe three, against one metal roof that's still on the house.
One number deserves a correction, because it still shows up in roofing articles. You'll read that "asphalt shingles" last 15 to 20 years while "fiberglass shingles" last 25 to 30, as if they were two products on the shelf. They aren't. The 15 to 20 year figure belongs to organic felt shingles, and Canada's current shingle standard, CSA A123.5-16, dropped the organic felt component when it replaced the older combined standard [2]. Every asphalt shingle made to that standard today has a glass felt mat. So when you compare lifespans for a Hamilton roof, the shingle number to use is the 22 to 30 year range, not the old one.
What shortens the roof | Shingles | Standing seam |
|---|---|---|
Attic that can't breathe | Shingles cook from underneath and last about two thirds of their rating [5] | Less affected, but trapped moisture still rots the deck |
Flashing cut wrong at chimneys and valleys | Leaks behind the shingle | Leaks behind the panel, same result |
Thin material | 3-tab instead of architectural | 28 or 29 gauge instead of the 24 or 26 gauge house grade [7] |
That's why Southcote lists deck inspection, underlayment, flashing and ventilation ahead of the shingles themselves, and why how Southcote approaches a roofing job starts with what the house needs rather than what pays most. A 30 year shingle only reaches 30 when the layers under it are done properly, and the same goes for a 50 year panel.
Metal roof vs shingles cost in Hamilton
In short: Shingles cost about half as much installed. The table gives Ontario 2026 figures per square foot and for a 2,000 square foot roof, before HST.
Is it cheaper to get a metal roof or shingles? Shingles, by roughly half. According to Builders Ontario, metal roof vs shingles cost in Ontario in 2026 runs about $5.50 to $8.50 per square foot installed for architectural shingles and about $13 to $22 for standing seam steel, before HST [5]. Green Building Canada puts shingles at $4 to $9 and standing seam steel at $18 to $25 [6], so the gap holds across sources.
Here is what the cost of metal roof vs shingles looks like on one 2,000 square foot Hamilton roof.
System | Installed, per sq ft (before HST) | Typical 2,000 sq ft roof | Expected life |
|---|---|---|---|
Architectural asphalt shingles | $5.50 to $8.50 [5] | $13,000 to $18,000 with HST on a bungalow [5] | 22 to 30 years [5] |
Screw-down metal panels | About $10.50 [7] | About $21,000 before HST | Shorter than standing seam, exposed fasteners age first |
Interlocking metal shingles | About $13.50 [7] | About $27,000 before HST | 50 years and up [5] |
Standing seam steel | $13 to $22 [5], about $16 typical [7] | $30,000 to $40,000 with HST [5] | 50 years and up [5] |
Four things move those numbers on a Hamilton house. Roof complexity: valleys, dormers and a wide chimney add cutting and flashing time, and on standing seam a chimney cricket alone can run about $1,500 [7]. Tear-off: a second layer of old shingles adds about $1 per square foot to remove [5]. The deck: houses built before about 1965 often have plank decks with gaps, which need plywood sheeting at roughly $3.25 per square foot before any new roof goes on [5]. And HST, which turns a $30,000 quote into $33,900.
The long view is simple arithmetic. Over 60 years, a shingle roof gets replaced two or three times and a standing seam roof once [5]. Whether that favours metal depends on how long you'll own the house, which is why the decision guide below starts there.
Prices here are published Ontario averages, not Southcote quotes. Southcote prices each roof after measuring it and checking the deck, and gives you the figure up front.
Look: which roof suits your house style
In short: Standing seam suits steep, simple roofs and clean lines. Shingles suit roofs with hips, dormers and valleys, and blend into mixed streets.
Walk an Ancaster street at five on a winter afternoon and the two roofs read differently. Standing seam is long vertical lines from ridge to eave, with no visible screws, and the low sun catches the ribs. Architectural asphalt shingles are layered and textured, and from the sidewalk they sit quietly against brick and stone.
House | Lean | Why |
|---|---|---|
Century home with a tall gable, farmhouse on the edge of Flamborough, modern build with clean rooflines | Standing seam | Steep, simple planes show off long panels; 20 or more colours from charcoal and slate to deep red and green |
1960s side split or bungalow on the Mountain with hips, dormers and valleys | Architectural shingles | Shingle texture hides the joins where metal would need many cuts; browns, greys and blacks blend on mixed streets |
Two things about metal that photos rarely show. Flat panel faces can show slight waviness, called oil canning, in raking light. It doesn't affect performance, but you'll notice it on wide panels and dark colours. And panels laid over strapping can telegraph every strap in low sun [7].
Lighter metal colours reflect more summer sun than dark shingles. In Hamilton's heating dominated climate that matters less than it sounds: a Concordia University study modelling Toronto found the net annual energy effect of a reflective roof is a few cents per square metre once snow cover is counted [14]. Attic insulation does the real work.
If you're redoing the exterior at the same time, look at finished roofs on Hamilton homes first, then pick the roof colour and match matching siding colours and fascia and trim finishing to it. The roof is the biggest surface on the house, and it's the one you can't easily repaint.
Noise: what you hear inside with each roof
In short: Over a solid deck with underlayment the gap is about 6 dBA, noticeable in a downpour and nothing like a barn roof. Hail is sharper on steel.
The drumming people picture comes from a barn, where rain hits bare panels over open rafters with nothing underneath. A house roof is a different assembly: solid deck, underlayment, attic, insulation, drywall ceiling. Each layer soaks up sound before it reaches you.
Rain on | Measured level |
|---|---|
Asphalt shingles over a solid deck | About 46 dBA [8] |
Metal over a solid deck with underlayment | About 52 dBA [8] |
Metal over open framing, barn style | About 61 dBA [8] |
Those figures come from an acoustic study at Lulea University of Technology, reported by ATAS International [8]. So the metal roof vs shingles gap inside a finished house is about 6 decibels, loud enough to notice if you listen for it in a downpour, nowhere near the shed roof in your memory.
Two caveats. Hail sounds sharper on steel than on shingles, and no underlayment fully hides it. And if your house has skylights, that's where most of the rain noise comes from on either roof, because glass carries sound more than any roofing material.
If quiet upstairs bedrooms are the priority, shingles still have the edge. If it's a secondary concern, a standing seam roof over a proper deck and underlayment won't change how your house sounds in the rain in any way that bothers most people.
Snow and ice: shedding, ice dams and snow guards
In short: Metal sheds snow and needs snow guards above doors and walks. Shingles hold snow and rely on eave protection. Attic insulation and ventilation control ice dams on both.
Picture a side split in Dundas on the first mild day in January. On a standing seam roof, the snow pack lets go all at once and slides off in a slab. On an asphalt shingle roof next door, the same snow stays put and melts slowly over a week. Each roof solves one winter problem and creates another.
Metal sheds snow, which keeps the weight off the structure and clears the roof fast. The slab has to land somewhere, though, and that somewhere is often the front walk, the deck, the furnace exhaust or the eavestrough. That's why a standing seam roof in Hamilton needs snow guards above every entrance and walkway, and under valleys where slides concentrate. Without them, a sliding slab can tear an eavestrough off the fascia in one go. Southcote's eavestrough and downspout work is sized and fastened with that in mind on metal roofs.
Shingles hold snow, so the question shifts to ice dams. Heat leaking from the house melts the underside of the snow pack, the water refreezes at the cold eave, and the next melt backs up under the shingles. The Ontario Building Code deals with this directly: eave protection on a shingle roof has to run from the roof edge at least 900 mm up the slope and to a line not less than 300 mm inside the inner face of the exterior wall, with exemptions for roofs pitched 1 in 1.5 or steeper and a few other cases [9]. In practice, Ontario roofers lay a 3 ft or 6 ft band of ice and water membrane at every eave [10]. Metal roofs get the same membrane at the eaves by manufacturer spec.
Winter question | Standing seam | Shingles |
|---|---|---|
Where the snow goes | Slides off, so snow guards go above doors, walks and under valleys | Stays on the roof until it melts |
Ice dam defence | Eave membrane by manufacturer spec, plus attic insulation and ventilation | Code required eave protection [9], plus attic insulation and ventilation |
Neither roof prevents ice dams on its own. Attic insulation and ventilation do that, and they're worth checking before any new roof goes on.
Wind, hail and fire ratings
In short: Class H shingles are rated to 150 mph under ASTM D7158. Standing seam is rated by panel system uplift test. Both reach Class A fire, and both offer Class 4 hail options.
Ask for the class, not the mph. Roofing articles often say asphalt shingles handle wind up to 110 mph while metal handles 150. The 110 figure is the older ASTM D3161 Class F fan test. Under the newer ASTM D7158 method, shingles are classed D, G or H, and Class H is rated to a 150 mph basic wind speed, according to the Asphalt Roofing Manufacturers Association [4]. IKO, which makes shingles for the Canadian market, states in its bulletin R-68 that its full shingle line is tested to Class H [3]. So a Class H architectural shingle, nailed to spec and sealed, carries the same headline number people quote for metal.
Standing seam is rated differently. Panels, clips and fastening are tested together as a system, under uplift methods such as UL 580 or ASTM E1592, and the result is a pass at a given pressure rather than one wind speed. The question for your contractor is which uplift test the specified panel and clip system passed, and whether the clip spacing on your roof matches it.
Rating | Standing seam metal | Architectural shingles |
|---|---|---|
Wind | System uplift test, UL 580 or ASTM E1592 | ASTM D7158 Class H, 150 mph basic wind speed [3] [4] |
Hail | UL 2218 Class 4 available; can dent, keeps shedding water | UL 2218 Class 4 available on impact resistant lines; can lose granules |
Fire | Non-combustible | Class A under ASTM E108 for glass felt shingles [11] |
Hail is where the two part ways in character. Steel takes a big hailstone without leaking but can dent, and the dent stays. Shingles don't dent, but a hard storm can strip granules and shorten their life. Fire is close to a draw on a house: NRCA notes glass felt shingles are typically Class A under ASTM E108, the top rating [11], and steel is non-combustible.
Warranty: what lifetime and 40 year actually cover
In short: A shingle lifetime warranty has a non-prorated period up front, then prorates. A metal 40 year warranty usually covers the paint finish. Read the workmanship warranty too.
A shingle warranty and a metal warranty measure different things, so the headline numbers don't compare directly.
Start with asphalt shingles. "Lifetime limited" sounds open ended, and in a sense it is: IKO's Canadian warranty defines lifetime as starting on the day the shingles are installed and running as long as the original owner owns the home [12]. The part that matters is what happens inside that period. There's a non-prorated stretch at the front, which IKO calls the Iron Clad Protection Period, where a valid defect claim gets repair or replacement. After it ends, coverage is prorated [12]. Picture the same roof twice. A defect found in year 3 is covered in full. The same defect found in year 25 is worth a fraction of the original shingle cost. The length of that front stretch varies by shingle and installer program, often 15 or 20 years, so ask for the number.
Warranty line to read | Shingles (IKO Canada example) | Metal (Vicwest example) |
|---|---|---|
Headline term | Lifetime limited, as long as the original owner owns the home [12] | 40 year limited finish warranty on residential profiles [13] |
What it covers in full | Defects during the non-prorated period, often 15 or 20 years [12] | Fade, chalk and peel of the paint finish [13] |
After that | Prorated coverage [12] | Substrate or perforation coverage is a separate clause |
Caps to check | 40 years on non single family homes; a buyer gets at most 120 months from installation [12] | Distance from salt water and roof slope conditions in the fine print |
Workmanship | Installer's own document | Installer's own document |
Southcote's shingle roofs carry the manufacturer's lifetime limited warranty on the materials, and every roof carries Southcote's own workmanship warranty on top; both are written into the quote.
Metal roof vs shingles pros and cons: a quick decision guide
In short: Three Hamilton house profiles, one lean each, with the trade-off stated. The right pick depends on roof shape and how long you'll stay.
Most Hamilton roofs fall into one of three situations. Find yours.
Your house | Lean | Why |
|---|---|---|
Forever home, simple steep roof, you plan to be there 20 plus years | Standing seam metal | One roof for the rest of your ownership, snow sheds instead of sitting, and the higher price spreads over the life of the roof. Budget for snow guards and the Hamilton permit. |
1960s side split or bungalow with hips, dormers and valleys, likely sold within 15 years | Architectural shingles | About half the upfront cost, quieter upstairs, hides the joins on a busy roof, and the roof will outlast your stay. |
Century brick home with a tall gable, tight budget this year | Shingles now, metal later | Do the deck, eave membrane and ventilation properly on this roof. When the shingles age out, the roof is ready for standing seam without surprises. |
The short pros and cons, from the sections above:
Standing seam metal | Architectural shingles | |
|---|---|---|
Pro | Longest lifespan | Lowest upfront cost |
Pro | Sheds snow, no granule loss, Class 4 hail options | Quiet in rain, hides complex roof lines |
Con | Costs about double, permit needed in Hamilton for a material switch | Shortest lifespan, so more replacements over 60 years |
Con | Can dent in hail, oil canning on wide dark panels | Loses granules in hard hail, holds snow and relies on eave protection |
Whichever way you lean, the metal roof vs shingles question gets easier once someone has stood on your roof, checked the deck and measured the pitch. That's the conversation to have before you compare quotes, so request an estimate from Southcote and Southcote will measure the roof, check the deck and price both options for you.
Frequently Asked Questions
In short: The seven questions Hamilton homeowners ask most when weighing metal against shingles, answered from the facts above.
Is it cheaper to get a metal roof or shingles?
Shingles, by roughly half upfront. In Ontario in 2026, architectural asphalt shingles run about $5.50 to $8.50 per square foot installed and standing seam steel about $13 to $22, before HST, according to Builders Ontario. Over 60 years the gap narrows, because a shingle roof is replaced two or three times and a standing seam roof once.
Do I need a permit to switch from shingles to a metal roof in Hamilton?
Yes. The City of Hamilton requires a building permit for replacing roofing with a different material, and that rule covers Ancaster, Dundas, Stoney Creek, Waterdown, Glanbrook and Flamborough. Re-shingling with the same material needs no permit. Burlington has its own building department, so confirm the rule there.
How long does a metal roof last compared to asphalt shingles?
Standing seam steel lasts 50 years and up. Architectural asphalt shingles made to Canada's current standard, CSA A123.5, last 22 to 30 years in Ontario conditions. Both numbers depend on a sound deck, proper flashing and an attic that vents well, which is where most early failures start.
Is a metal roof loud in the rain?
Not in a finished house. Rain measures about 46 dBA on asphalt shingles and 52 dBA on metal over a solid deck, a gap you'd notice only in a downpour. The barn drumming people remember comes from panels over open framing, which measure around 61 dBA. Hail is sharper on steel.
Can a metal roof go over existing shingles in Hamilton?
Sometimes, if the deck is sound and the panel maker allows it, but it's still a change of material, so Hamilton's building permit rule applies either way. Have the deck inspected first. Plank decks on homes built before about 1965 usually need plywood sheeting before any new roof goes on.
Which is better for snow, metal or shingles?
Metal sheds snow in slabs, which keeps load off the roof but needs snow guards above doors and walkways. Shingles hold snow, so the risk shifts to ice dams, which eave protection and attic ventilation control. Neither roof prevents ice dams on its own; insulation and ventilation do.
What should a metal roof quote in Hamilton include?
Five lines: who files the building permit and books the inspection, the panel gauge (24 or 26 for a house), the uplift test the panel and clip system passed, where the snow guards go, and the finish warranty and workmanship warranty as documents, not only a number. A quote missing any of these needs a second conversation.
Definition Bank
Term | Meaning |
|---|---|
Standing seam | A metal roof made of long vertical panels joined at raised seams that hide the fasteners. |
Architectural shingles | Laminated asphalt shingles with a thicker, layered profile than flat 3-tab shingles. |
Glass felt mat | The fibreglass base layer inside every asphalt shingle made to CSA A123.5. |
Concealed fastener | A clip or screw hidden under the panel seam, so no fastener head is exposed to weather. |
Eave protection | A waterproof membrane at the roof edge that stops ice dam meltwater from backing up under the roofing. |
Ice dam | A ridge of ice at the eave formed when snow melts over a warm attic and refreezes at the cold edge. |
Snow guard | A bracket or rail fixed to a metal roof that holds snow in place instead of letting it slide. |
Oil canning | Slight visible waviness in the flat face of a metal panel, an appearance issue rather than a defect. |
Non-prorated period | The first years of a shingle warranty when a valid defect claim is covered in full. |
Finish warranty | A metal roof warranty covering fade, chalk and peel of the paint, separate from substrate and workmanship. |
Entity Cards
Standing seam metal roofing
Property | Value |
|---|---|
Material | Painted steel, 24 or 26 gauge for a house |
Fastening | Concealed clips under raised seams |
Lifespan | 50 years and up |
Installed cost, Ontario 2026 | $13 to $22 per sq ft before HST |
Wind rating | Tested by panel and clip system, UL 580 or ASTM E1592 |
Warranty type | Finish warranty, often 40 years, plus separate substrate and workmanship coverage |
Winter note | Sheds snow, needs snow guards above doors and walks |
Architectural asphalt shingles
Property | Value |
|---|---|
Standard | CSA A123.5-16, glass felt mat |
Lifespan | 22 to 30 years in Ontario conditions |
Installed cost, Ontario 2026 | $5.50 to $8.50 per sq ft before HST |
Wind rating | ASTM D7158 Class H, 150 mph basic wind speed |
Fire rating | Class A under ASTM E108 |
Warranty type | Lifetime limited, non-prorated period then prorated |
Winter note | Holds snow, relies on eave protection and attic ventilation |
City of Hamilton roofing permit rule
Property | Value |
|---|---|
Permit required | Replacing roofing or exterior cladding with a different material |
Permit not required | Re-shingling a roof with the same roofing material |
Municipalities covered | Ancaster, Dundas, Stoney Creek, Waterdown, Glanbrook, Flamborough and Hamilton proper |
Not covered | Burlington, a separate municipality |
Source | City of Hamilton Building Division, Building Permit Application Requirements |
Sources
City of Hamilton, Building Division. Building Permit Application Requirements (2026). https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit
CSA Group. CSA A123.5-16, Asphalt shingles made from glass felt and surfaced with mineral granules, preface and scope (2016). https://www.csagroup.org/store/product/2703958/
IKO Industries. Residential Information Bulletin R-68, ASTM D7158 Class H (August 2012). https://www.iko.com/na/document/tbr68-astm-d7158-class-h-product-bulletin
Asphalt Roofing Manufacturers Association. Using ASTM D7158 where standard conditions do not apply (2024). https://www.asphaltroofing.org/using-astm-d7158-where-standard-conditions-do-not-apply/
Builders Ontario. Roof Replacement Cost in Ontario (2026): Shingles, Metal and Flat. https://buildersontario.com/?p=12921
Green Building Canada. Comparing Metal Roof vs Shingle Roof Costs (2026). https://greenbuildingcanada.ca/?p=59888
Builders Ontario. Metal Roof Cost Calculator Ontario (2026). https://buildersontario.com/?p=12953
ATAS International. Sound Emission, Metal Roofing, technical note reporting the Lulea University of Technology acoustic study (2018). https://www.atas.com/wp-content/uploads/2018/06/Sounds-Emission-Metal-Roofing.pdf
Ontario Building Code, Division B, Article 9.26.5.1, Required Eave Protection. https://www.buildingcode.online/1940.html
Builders Ontario. Roof Underlayment and Ice and Water Shield: What the Ontario Building Code Requires (2026). https://buildersontario.com/?p=12934
NRCA Professional Roofing, Tech Today. Asphalt shingle fire and wind classifications. https://professionalroofing.net/articles/article/1062
IKO Industries. Canada Limited Warranty, asphalt shingles installed on or after February 1, 2025. https://www.iko.com/na/document/canada-limited-warranty
Vicwest Building Products. The Residential Metal Roofing Collection, UltraVic colour overview (2019). https://mcmunnandyates.com/media/productattach/u/l/ultravic-28-gauge_colour_overview.pdf
Hosseini, M. and Akbari, H., Concordia University. Heating energy penalties of cool roofs: the effect of snow accumulation on roofs (2014). https://aivc.org/node/34807