Commercial roofing
Commercial roofing for commercial and industrial buildings in Barrie.
Commercial and Industrial Flat Roofing in Barrie
Barrie sits in the Georgian Bay snow belt, so on a low-slope roof here the load on the deck matters as much as the membrane on top of it.
NorthCan Roofing works on commercial and industrial flat roofs in Barrie. This is snow belt territory, and the technical priority here is different from the rest of our service area: drift loading, deck deflection and drainage under repeated heavy accumulation come before questions of membrane brand or finish.
What commercial roof stock does Barrie have?
Barrie's commercial and industrial buildings cluster in a few places: the employment lands in the south end around Caplan and Mapleview and along Highway 400, the Bryne Drive and Big Bay Point industrial area, older manufacturing and service buildings closer to the waterfront and along Dunlop, and retail and office stock spread along Bayfield and Essa.
The stock is mixed in age. There are 1970s and 1980s single-storey industrial buildings with steel deck on open-web joists and built-up or modified bitumen roofs, and a substantial newer layer of distribution, retail and institutional buildings from the 1990s onward with single-ply membranes on thicker insulation. Institutional buildings, schools and the health and education campuses add flat roofs with complex geometry, stepped levels and large mechanical zones.
What matters more than age here is roof geometry. Every step in a roof plane, every penthouse, every screen wall and every reentrant corner is a place where snow will collect, and Barrie collects a lot of it.
Why is snow loading the defining issue on a Barrie roof?
Because Barrie sits at the southern end of the Georgian Bay snow belt, where cold air moving over open water picks up moisture and deposits it inland as lake-effect snow. That produces both greater total accumulation and, more importantly for a roof, heavy accumulation in short periods, followed by rain-on-snow events that can multiply the weight of a snowpack without adding any depth to it.
The Ontario Building Code deals with this by tabulating a ground snow load and an associated rain load for every Ontario municipality in its climatic design data, published as Supplementary Standard SB-1. The values assigned to municipalities north of the Greater Toronto Area, in the escarpment and Georgian Bay corridor, are higher than the values assigned to the Toronto lakeshore. We are not going to publish a figure for your building, because the specified snow load on a roof is not the ground snow load: it is the tabulated value modified by exposure, roof slope, thermal conditions and, critically, accumulation and drift factors for the roof's shape. That calculation belongs to a structural engineer working from the current code and your building's drawings.
The design load is also the load the building was designed for when it was built, under the code of its day. A 1975 Barrie warehouse was designed to a 1975 standard, and it may since have had rooftop equipment, a second membrane, a solar array or a new screen wall added, all of which are permanent additional load before any snow falls.
How do you know a Barrie roof is overloaded?
By watching the structure, not the snow. Depth is a poor guide because a metre of dry powder and half a metre of saturated snow can weigh entirely differently, and the field of the roof may be swept bare while a drift against a parapet carries several times the design field load.
The warning signs that warrant an immediate call, and often immediate evacuation of the space below, are these:
- Visible sagging or ponding in the roof deck between joists, particularly if it is new.
- Fresh cracks in interior drywall or masonry, especially at column lines or over doorways.
- Doors or overhead doors that suddenly bind or will not latch.
- Creaking, popping or other unfamiliar noises from the structure under load.
- Bowed or distorted steel members, or joists that no longer look parallel.
- Sprinkler pipes or ceiling grid that have moved out of line.
- Water entering during a thaw at a point that has never leaked before, which can indicate deflection has changed the drainage.
If you see these, the priority is structural assessment, not roofing. We will attend, we will remove snow safely, and we will tell you honestly if what you need next is a structural engineer rather than a roofer.
What we do in Barrie
Winter response and load-aware design, plus ordinary replacement work on ageing stock.
- Controlled snow removal in balanced passes, drains cleared first, a protective layer left on the membrane and no metal tools on the sheet.
- Drift zone inspection after significant events, focused on steps, parapets, screens and reentrant corners.
- Drainage correction with tapered insulation, additional drains and overflow scuppers so meltwater leaves before it refreezes.
- Roof replacement designed with the added dead load of the new assembly accounted for, not assumed away.
- Autumn inspection so the roof enters winter with clear drains and sound details.
- Repairs to splits and flashings caused by movement under load.
Where the structure is in question we coordinate with the owner's engineer rather than offering an opinion we are not qualified to give. For budgeting a replacement, use the flat roof cost calculator and see the commercial roofing page for scope.
Being honest about the drive to Barrie
Barrie is the furthest north we work and we will not pretend it is next door. Every crew, every load of material and every piece of equipment leaves 425 Alness Street in Toronto and travels north on Highway 400. We have no Barrie yard, no Barrie office and no Barrie telephone number; all calls come to 416-456-0777, and we will not claim a local presence we do not have.
What that means for you is practical rather than promotional. Planned work in Barrie is scheduled as continuous mobilisations with a properly sized crew and materials staged on site, because sending people up and back for half a day is wasteful and you would pay for it. Winter callouts are attended through our 24/7 line and emergency roof repairs, and in a major snow event the road conditions on Highway 400 are the same for us as for everyone else. If your building is in genuine structural distress, call a local structural engineer at the same time as you call us. Our nearest other coverage is Vaughan and Richmond Hill on the way north, and everything is on the service areas page.
Barrie permits for commercial roof work
The City of Barrie runs a distinct stream for industrial, commercial and institutional permits, with checklists covering ICI and large residential projects, commercial tenant fit-ups, interior alterations and new builds and additions. The City states that building permits give legal permission to begin construction and ensure the proposed construction meets the minimum life and fire safety requirements contained within the Building Code. Start at Barrie's industrial, commercial and institutional permits page and confirm your scope with the City's building services.
In Barrie the structural trigger is engaged more often than elsewhere, precisely because of the snow. Adding insulation thickness and a second membrane adds dead load; adding rooftop equipment adds dead load; reinforcing a deck or joists after a structural review is structural work by definition. Any of those needs engineered drawings and a permit. Treat the approval stage as part of the schedule, and start it well before the season closes.
What we do in Barrie
Flat roof repairs
Flat roof repairs for commercial and industrial buildings in Barrie.
Emergency roof repairs
Emergency roof repairs for commercial and industrial buildings in Barrie.
Flat roof replacement
Flat roof replacement for commercial and industrial buildings in Barrie.
Roof installation & replacement
Roof installation & replacement for commercial and industrial buildings in Barrie.
Roof inspections
Roof inspections for commercial and industrial buildings in Barrie.
Roofing in Barrie: questions we get asked
Is Barrie's design snow load higher than Toronto's?
The Ontario Building Code assigns climatic design values, including ground snow and rain loads, to each Ontario municipality in Supplementary Standard SB-1, and the values in the escarpment and Georgian Bay corridor north of the GTA are higher than those on the Toronto lakeshore. The load on your particular roof also depends on shape, exposure and drift factors, which is an engineer's calculation.
How much snow is too much on our Barrie warehouse roof?
Depth is the wrong measure, because wet snow weighs far more than dry snow at the same depth and drifts concentrate load in narrow strips. Watch the structure instead: new deck sagging, fresh drywall cracks at column lines, doors that suddenly bind, unfamiliar creaking, or bowed steel. Any of those means clearing the space below and calling for assessment immediately.
Can removing snow itself damage the roof or the building?
Yes, both. Scraping to the membrane with metal tools cuts single-ply and cracks cold bitumen, and removing snow unevenly can unbalance the structure and make things worse. We work in balanced passes, clear drains and scuppers first, use plastic tools, and deliberately leave a thin protective layer of snow rather than exposing the membrane.
Do you have a crew based in Barrie?
No. Every crew and all our material dispatch from 425 Alness Street in Toronto and travel north on Highway 400, and the only phone number is 416-456-0777. We schedule Barrie work as continuous mobilisations rather than short visits for that reason. In a serious snow event our travel is subject to the same road conditions as everyone else's, and we will say so rather than promise otherwise.
Free roof assessment in Barrie
Tell us the address, the roof size and what you are seeing. We will book a time to get up there and put it in writing.
Call 416-456-0777 to book. Roof leaking right now? Our 24/7 emergency line is 416-450-1818.
Call 416-456-0777