Spray Foam Roofing Systems for Commercial Buildings in SW Ontario
A seamless, insulating SPF roof installed over your existing flat roof — no tear-off, no business disruption, available anywhere in Ontario.
Flat roofs fail at seams, drains, and penetrations — the places where membranes are cut, lapped, and flashed. Traditional replacement means tearing the old roof off: dumpsters of landfill waste, days where the building is open to the sky, and major disruption to whatever's happening underneath.
A spray foam roof takes a different approach. High-density closed-cell foam is applied directly over the existing membrane, curing into a single seamless surface with no joints to fail. An elastomeric topcoat protects it from UV and weather. The result is a watertight, insulating roof system installed at a fraction of the cost and disruption of full replacement.
Ontario's freeze-thaw cycles are brutal on seamed membranes. Foam handles thermal movement better than any other flat roof system — and no local competitor offers it the way we do. Every SPF roof we scope is engineered with the system manufacturer and industry experts behind it, from moisture scan to warranty. This is a flagship large-project service, available anywhere in Ontario.
We mobilize anywhere in Ontario for projects at scale.

The Problem
Your Roof Leaks Where It Was Joined
Every seam, drain boot, and penetration flashing on a conventional flat roof is a future failure point. Freeze-thaw cycling works those joints open a little more every winter, and chasing leaks becomes an annual line item.
Tear-off replacement resets the clock but keeps the same failure modes — you're installing new seams to fail in fifteen years, and paying for disruption, disposal, and lost use of the building in the meantime.
Why It Works
Why Building Owners Choose SPF Roofing
- No tear-off — installed over the existing roof, waste and disruption eliminated
- 100% seamless — zero seam failures, self-flashing around every curb and drain
- Adds real insulation (about R-6 per inch) on top of the building
- Reflective coating option cuts summer cooling load
- Decades of service life — the coating renews with a recoat every 10–15 years instead of replacement
- Handles Ontario freeze-thaw and thermal movement better than membranes
Where We Apply It
Where the System Fits
- Warehouses
- Manufacturing facilities
- Industrial plazas
- Strip malls
- Agricultural buildings
- Institutional buildings
How It Works
The SPF Roof Process
Step 1: Inspect
Roof walk and moisture scan to confirm the existing assembly is a sound substrate.
Step 2: Prep
Cleaning, drying, and repair of any saturated areas before foam goes down.
Step 3: Apply
High-density closed-cell foam sprayed seamless across the field and every detail.
Step 4: Coat & Warranty
Elastomeric topcoat, final inspection, and system warranty documentation.
FAQ
Common Questions
Most structurally sound flat and low-slope roofs are. The moisture scan tells us — limited wet areas get cut out and repaired before application; a fully saturated assembly may need other work first. The inspection gives you a straight answer either way.
Ready to get started?
Call (519) 324-6173