Standing water 48 hours after rain
Ponding means drainage has failed or the deck has deflected. The membrane under standing water ages far faster than the rest of the field.
Commercial & Flat Roofing in Edmonton
Membrane roofing for the buildings that keep Edmonton working — warehouses, retail plazas, industrial, institutional, multi-family and strata. Installed, repaired and maintained by a crew whose core trade is flat roofing, not shingles.
Know what you're looking at
Six things on a flat roof
that get expensive if ignored.
Blisters and bubbling
Trapped moisture or vapour under the membrane. Left alone it spreads, and every freeze–thaw cycle widens the void.
Open or lifting seams
Seams are where almost every membrane roof fails first. An open lap is a direct path into the insulation and the deck.
Cracked or pulled flashing
Parapets, curbs and penetrations move with temperature. When flashing lets go, water gets in at the hardest point to trace.
Granule loss and shrinkage
A cap sheet losing granules is losing its UV protection. Shrinkage pulls the membrane tight at the edges and tears details open.
Interior staining or a musty smell
By the time it shows inside, water has usually been tracking through the assembly for a while — often far from where it entered.
Seeing any of these? A free assessment gets you a written answer on whether it's a repair, a section, or a full replacement — before it becomes a capital decision made under pressure.
What we do
Whole-lifecycle roof work.
Whether the roof is going in, leaking, or being kept alive another eight years, it's the same crew and the same documentation standard.
Installation & Replacement
Full tear-off or overlay, insulation and vapour-barrier detailing, drains, curbs and flashings — quoted line by line.
Flat roof installationRepair & Leak Investigation
Finding where water actually enters, which is rarely where it appears inside. Targeted repair when the roof has life left.
Repair & leak investigationMaintenance Programs
Spring and fall inspections with documented reports — the paperwork most manufacturer warranties require to stay valid.
Maintenance programEmergency Response
Active leak in an occupied building? We stabilize first to stop damage to the building and its contents, then schedule the permanent repair.
Emergency repairMulti-Property Servicing
One point of contact across a portfolio, consistent reporting formats, and scheduling that fits your budget cycle.
For property managersSystems Explained
SBS, TPO, EPDM, CBC and built-up compared — what each costs, how each ages in Alberta, and which suits your building.
Compare systemsThe buildings we work on
Flat and low-slope roofing covers most of Edmonton's commercial building stock. The systems are similar; the constraints are not. A distribution warehouse can take a crane and a closed lane. A strip plaza with a dental office and a restaurant cannot.
- Warehouses and industrial — large uninterrupted fields, heavy mechanical loading, crane and staging access.
- Retail plazas and strip malls — multiple tenants, customer parking to protect, noise and access windows that matter.
- Multi-family and strata — occupied units below, board approvals, reserve-fund timing.
- Institutional — schools, care facilities and offices where the building cannot simply close.
- Mixed-use — commercial at grade, residential above, and a roof assembly that has to satisfy both.
How a commercial job actually runs
- Assessment. We get on the roof, identify the existing system, check drains, seams, flashings and penetrations, and core the assembly where it's warranted.
- Written scope and quote. Itemized — tear-off, insulation, membrane, flashings, drains, disposal. You can see what you're paying for and what you're not.
- Scheduling around your operations. Access, staging, material handling and noisy work planned against your hours, not ours. Tenant notice where it's needed.
- Installation. Daily tie-ins so the roof is watertight every night, not just at the end of the job.
- Documentation and handover. Photos, what was installed, warranty paperwork, and a maintenance schedule that keeps the manufacturer coverage enforceable.
On occupied buildings: most of our commercial work happens on buildings that stay open. That constraint shapes the schedule from the first site visit — it isn't something we discover halfway through.
What drives the price
We'd rather assess your roof and give you a real number than publish a range that turns out to be wrong for your building. What moves it:
- Roof area, and how much of it is field versus detail work
- The system specified, and insulation requirements to hit code
- Deck condition once the old assembly is off
- Tear-off versus overlay, and disposal volume
- Access and height — crane, hoist or stairs changes the labour picture
- Number of penetrations, curbs, drains and parapet details
Our own work
Real jobs, real Edmonton buildings.
Every photo here is an iRoof job. No stock imagery.
Questions
Commercial roofing, answered.
It depends on roof area, access, deck condition and weather windows. A straightforward mid-size commercial field is usually measured in weeks, not months. We give you a scheduled window in the quote and tell you immediately if weather moves it.
Yes — most of our commercial work happens on occupied buildings. We plan staging, access and material handling around your operating hours, and coordinate anything that affects tenants in advance. The roof is tied in watertight at the end of every working day.
Often, yes. If the membrane has service life left and the problem is localized — a seam, a flashing, a drain detail — repair is the right call and we'll say so. We'll also tell you when it isn't, and why spending on a roof that's at end of life is money lost.
Both, depending on what's under there. An overlay can be a sound, cheaper option when the existing assembly is dry and the deck is sound, and code allows it. If the insulation is wet, an overlay just buries the problem — we'll core it and tell you honestly which situation you're in.
It depends on the building, its use, roof traffic, exposure and how long you plan to hold the asset. SBS handles cold and complex detailing best, which is why it dominates here. TPO suits large simple fields, and CBC fits occupied buildings where open flame isn't an option. See Roofing Systems Explained for the full comparison.
Emergency repairs, yes — a leak doesn't wait for spring. Full replacements are weather-dependent: cold and moisture affect adhesion and membrane handling, and there are temperatures below which a proper install simply isn't possible. We'll tell you when the honest answer is to stabilize now and schedule the replacement for the season.
Yes — City of Edmonton licensed (#00000), fully insured and bonded ($2M / $5M liability), with WCB coverage (account #000000) on every crew member on your property. We'll provide certificates on request before work starts.
Next step
Tell us about the building.
Commercial assessments are free. Call for a quote, or leave a voicemail and we'll call you back.