For a cottage or house in the Georgian Bay snowbelt around Elmvale, Midhurst and Coldwater, a metal roof is usually the better choice if you plan to keep the building a long time and want snow to shed rather than sit, while asphalt shingles are the better choice if the upfront budget matters most or the roof is complicated. Neither one fixes ice dams on its own: those come from heat escaping into the attic. The right answer depends on the roof's shape, how the building is used in winter, and where the snow will land when it slides.
What the snowbelt does to a roof
North Simcoe sits downwind of Georgian Bay, and lake-effect snow can pile up fast across Springwater, Tiny and Severn townships. A roof here deals with heavy, repeated snow loads, freeze-thaw cycles through the shoulder seasons, and ice building at the eaves wherever warm air leaks into the attic. Cottages add their own problems: many were built for summer use, with little attic insulation or ventilation, and some sit empty and unheated for part of the winter while others are heated on and off.
Those conditions matter more to the metal-or-shingle decision than any brochure. A roof that sheds snow onto a deck stair or over the only door is a hazard, and a shingle roof over a poorly vented attic will age faster than its rating suggests.
Planning work like this? Tell us about it and we will connect you with one independent local contractor. Free, and no obligation.
Metal roofing: strengths and trade-offs
- Snow shedding. Smooth metal panels let snow slide off, which reduces the load that sits on the roof. That is the main reason many snowbelt owners choose it.
- Long service life. Metal roofs generally last considerably longer than asphalt shingles when installed well, which is why they suit a building you expect to keep in the family.
- Two main types. Standing-seam panels hide their fasteners and are generally considered the more durable option; exposed-fastener (screw-down) panels cost less, but the screws and washers need checking over time.
- Sliding snow needs planning. Snow guards over entries, walkways, decks, propane tanks and lower roofs are often needed. Ask where the snow will go before you choose.
- Higher upfront cost than shingles in most cases, and fewer installers for standing seam, which can affect scheduling.
- Noise and condensation. Rain noise is usually a non-issue over a solid deck and insulated attic, but the underlayment and ventilation details still matter.
Asphalt shingles: strengths and trade-offs
- Lower upfront cost and many local roofers who install them, which can make scheduling easier.
- Easier on complicated roofs with dormers, valleys and many penetrations.
- Snow tends to stay put, which can be an advantage over walkways but means the roof carries the load until it melts.
- Shorter life in the snowbelt if the attic runs warm. Ice dams can push water under shingles, which is why an ice-and-water membrane along the eaves is standard practice in this area.
What drives the cost
Prices vary a great deal from one roof to the next, so treat any number you see as a general guide only. The main cost drivers are:
- Roof size and pitch. Steeper roofs need more safety setup and slow the work.
- Complexity. Valleys, dormers, skylights, chimneys and vent stacks all add flashing work, and more so with metal.
- Tear-off and deck condition. Removing old layers and replacing soft or rotten sheathing is often only priced fully once the old roof is off.
- Attic fixes. Adding insulation, air sealing or ventilation at the same time often does more for ice dams than the roofing material does.
- Snow guards, eavestrough changes and access, including steep driveways or lots where a bin cannot get close.
Checklist before choosing a roof
- Walk around the building and mark where snow would land if it slid off each roof plane: doors, decks, stairs, lower roofs, meters, vehicles.
- Look in the attic for frost, stained sheathing or matted insulation, which point to warm, moist air getting in.
- Note how the building is used in winter: heated full time, heated on weekends, or closed up.
- Check whether the eavestroughs will survive sliding snow, or whether they need to be changed or moved.
- Ask each roofer what underlayment, eave membrane and ventilation they plan, not just what the top layer is.
- Ask about the manufacturer's warranty and the installer's workmanship warranty separately.
When to bring in a contractor
Bring in a roofing contractor when you see curling or missing shingles, recurring ice dams, leaks at the eaves or around a chimney, or when the roof is simply at the end of its life. If you are leaning toward metal, it is worth speaking to a contractor who installs the specific type you want (standing seam or exposed fastener), since the details are different. A local roofer in the Elmvale, Midhurst or Coldwater area will know how snow behaves on roofs in this part of the county and can tell you where guards or diverters are needed.
More on local conditions is on the Elmvale, Midhurst and Coldwater pages, and the services page lists the roofing and eavestrough work people ask about. If ice at the eaves is the main worry, the guide on preventing ice dams in Coldwater covers the attic side.
Frequently asked questions
Does a metal roof stop ice dams?
Not by itself. Metal sheds snow more readily, which can reduce how much ice builds up, but ice dams are caused by heat escaping into the attic and melting snow from below. Air sealing, insulation and ventilation are usually what fixes the cause.
Can metal roofing go over existing shingles?
Some systems allow it, but many roofers prefer a full tear-off so they can check and repair the deck and install proper underlayment. Building rules and the manufacturer's instructions also apply, so ask the contractor what they recommend for your roof and why.
Is a metal roof too loud on a cottage?
Over a solid deck with an insulated attic, rain noise is usually modest. It can be more noticeable on open-rafter cottages or screened porches with no ceiling. Ask the roofer how your roof's construction will affect it.
If you are weighing metal against shingles for a home or cottage near Elmvale, Midhurst or Coldwater, use the short form — it is free to use, it goes to one local roofing contractor, and there is no obligation to hire.