Commercial roofing
Commercial roofing for commercial and industrial buildings in Oakville.
Commercial and Industrial Flat Roofing in Oakville
In Oakville the roof is sometimes a visual matter as well as a technical one, because parts of the town sit inside heritage conservation districts.
NorthCan Roofing works on Oakville's commercial flat and low-slope roofs, from corporate campuses in the north of the town to retail plazas along the main arterials and older commercial buildings in the heritage areas near the lake. Appearance and approvals matter here in a way they do not in a warehouse district.
What sort of commercial roofs does Oakville have?
Three distinct groups. North of the QEW and around Winston Churchill, Upper Middle and Trafalgar you find corporate campuses and business park buildings from the 1990s and 2000s: low-rise and mid-rise offices on concrete or steel decks, single-ply or SBS membranes, generous roof areas with screened mechanical plant, and landscaped settings that constrain crane and staging positions.
Second, the retail plazas and commercial blocks strung along Trafalgar, Dundas, Speers and Lakeshore, mostly single-storey with steel deck, modified bitumen roofs and a decorated street parapet carrying the tenant sign band. Third, and unlike almost anywhere else we work, the older commercial buildings in and around downtown Oakville and Bronte, some of which sit within heritage conservation districts or are individually designated under the Ontario Heritage Act.
On the third group the roof is not a private technical matter. Coping profiles, parapet appearance, visible roof edges, chimneys and anything projecting above the roofline can all form part of what the heritage designation protects, and changing them may need approval before work begins.
What does Oakville's lakeside position do to a roof?
Oakville sits on the Lake Ontario shore between Mississauga and Burlington, so it shares the moderated but heavily cycled winter of the whole western lakeshore: repeated crossings of the freezing point rather than a settled deep freeze, and consequently a great deal of expansion and contraction inside every joint, lap and masonry parapet on the roof. The Ontario Building Code sets out climatic design data for each municipality in Supplementary Standard SB-1, and Oakville's shoreline values are milder in snow terms than the areas north of the escarpment.
The practical consequence on the retail stock is ice at the street parapet, which is generally the coldest and tallest element on a plaza roof and the one most likely to dam meltwater. On the corporate campuses the more common issue is the mechanical zone: dense rooftop equipment, condensate discharge onto the membrane, and service traffic across the roof that abrades it. Neither is dramatic, and both are cheap to manage with a scheduled inspection and prompt attention to details.
Our Oakville service mix
Appearance-sensitive detailing on one side, campus-scale membrane work on the other.
- Parapet, coping and sign band work on plaza roofs, matching profiles where appearance is controlled.
- Roof replacement on corporate campus buildings, phased to keep offices occupied.
- Protected membrane and terrace waterproofing where a roof sits over occupied space.
- Repairs around rooftop mechanical zones and condensate discharge points.
- Skylight work on plazas and campus atria.
- Maintenance programmes across multiple buildings on one campus.
Where a heritage approval may be needed, we prepare the roof detail drawings that a heritage permit application requires rather than leaving the owner to interpret a specification. The flat roof cost calculator is a useful starting point for planning, though heritage-sensitive metal work sits outside what any calculator can estimate.
Getting to Oakville
All Oakville work is dispatched from 425 Alness Street in Toronto, on 416-456-0777. There is no Oakville office, address or local line. The QEW corridor run is a standard one for our crews, and Oakville sits between our Mississauga and Burlington coverage, so we frequently combine trips along the corridor and can hold a consistent crew on an Oakville campus for the length of a phase.
On corporate campuses the constraint is usually not travel but access: landscaped setbacks, visitor parking and pedestrian routes limit where a crane or a bin can go, and staging has to be agreed with the property manager before the first day. Water entering an occupied building goes through the 24/7 line to emergency roof repairs. The full coverage list is on the service areas page.
Heritage districts and permits in Oakville
The Town of Oakville states that a heritage permit is required to undertake changes to properties designated under the Ontario Heritage Act, and advises that if your property is designated as part of a heritage conservation district you may want to consult the relevant heritage district plan. Oakville has more than one such district, and the plans set out what the district is protecting and what alterations are acceptable within it.
For a commercial roof this can reach further than owners expect: a change of coping profile or colour, a new metal fascia, a visible parapet cap, or new rooftop equipment breaking the roofline can all be alterations to a designated property. The Town's heritage planners are the right first call, and the Town publishes a heritage permit application guide. Start with the Town's heritage permits page. Separately, the ordinary building permit question applies as it does everywhere in Ontario: like-for-like roofing without structural work is generally exempt while structural alterations are not, and that is a matter for Oakville's building services. Our approach to this work is on the commercial roofing page, or request an estimate.
Can a heritage building have a modern membrane roof?
In most cases yes, because what the designation usually protects is the visible character rather than the invisible waterproofing. A flat roof behind a designated street parapet is normally not visible from the public realm, so a modern two-ply SBS or single-ply system can go on without touching the protected appearance.
The negotiation is at the edges. Coping metal, fascia, the visible top of the parapet, gutters and downpipes, and anything that projects above the roofline are the elements a heritage plan is likely to address. The workable approach is to keep the visible profile and material as it is, or to match it closely in a new metal, and to make the performance improvements behind it. We prepare the detail drawings for that conversation rather than asking a heritage planner to read a roofing specification, and we do not start work on a designated property until the approval position is clear.
What we do in Oakville
Flat roof repairs
Flat roof repairs for commercial and industrial buildings in Oakville.
Emergency roof repairs
Emergency roof repairs for commercial and industrial buildings in Oakville.
Flat roof replacement
Flat roof replacement for commercial and industrial buildings in Oakville.
Roof installation & replacement
Roof installation & replacement for commercial and industrial buildings in Oakville.
Roof inspections
Roof inspections for commercial and industrial buildings in Oakville.
Roofing in Oakville: questions we get asked
Is our downtown Oakville commercial building in a heritage conservation district?
The Town keeps that information and can confirm it for your address. Oakville states that a heritage permit is required for changes to properties designated under the Ontario Heritage Act, and that where a property is within a heritage conservation district the relevant district plan should be consulted. Contact the Town's heritage planners before you commit to any change to a visible roof element.
Will heritage rules stop us putting a modern membrane on a heritage building?
Rarely. What is usually protected is the visible character, and a flat roof behind a street parapet is generally not visible from the public realm. The elements that attract attention are coping, fascia, visible parapet caps, rainwater goods and anything projecting above the roofline. Keep or match those and the waterproofing behind them can be a current system.
How do you re-roof a corporate campus building without closing the offices?
In phases sized to what can be opened and closed watertight in a shift, with a staging plan agreed with the property manager first. On Oakville campuses the binding constraint is usually access rather than the roof: landscaped setbacks and pedestrian routes limit crane and bin positions. Odour and noise management over occupied floors sets the daily working window.
Why do plaza roofs in Oakville ice up at the front?
Because the street parapet and sign band form the tallest, coldest element on the roof, and the roof drains away from it. Meltwater running towards rear drains refreezes at that cold edge and dams, and the backed-up water gets under the base flashing. Keeping rear drains and scuppers clear through autumn is the practical preventive measure.
Free roof assessment in Oakville
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