
Commercial Flat Roofing • 2‑Ply SBS Systems
2‑Ply SBS Bituminous Torch‑On Assemblies for Commercial Flat Roofing
Standardized 2‑ply SBS torch‑on assemblies delivered through Canadian Roofing Group’s national network—built for long-term performance, consistent reporting, and portfolio-ready project management.

What is a 2‑ply SBS torch‑on roof?
System overview
A torch‑applied modified bitumen membrane (SBS) installed in two layers: a base sheet and a cap sheet. The result is a durable, watertight assembly suited to many Canadian climates.
Where it performs best
Low‑slope commercial roofs on retail, multi‑family, warehouses, and light industrial buildings—especially where robust detailing and traffic resistance are priorities.
How we deliver it
Vetted technical field partners, standardized scopes, and consistent documentation—so multi‑site owners receive comparable outcomes across provinces.
Why property managers choose torch‑on systems
Torch‑on SBS assemblies are a proven solution for low‑slope roofs—especially when paired with disciplined detailing, QA, and lifecycle planning.

Redundancy by design
Two plies provide layered waterproofing and added resilience at laps, penetrations, and transitions.

Detailing that lasts
Compatible with robust flashings and edge details—critical for long-term leak resistance and wind performance.

Serviceable over time
Repairs and targeted remediation can be completed efficiently, supporting proactive maintenance programs.

Portfolio consistency
Standardized scopes, reporting, and warranty pathways—ideal for national accounts and multi‑city coordination.
Torch‑on roofing FAQs
Common questions from commercial owners, strata boards, and multi‑site property managers.
How long does a 2‑ply SBS torch‑on roof last?
Service life depends on roof design, drainage, traffic, and maintenance. We provide an assessment-based lifecycle outlook and a CapEx roadmap for planning.
Is torch‑on appropriate for every flat roof?
Not always. We evaluate substrate condition, slope/drainage, penetrations, and building use to confirm the right system (torch‑on, liquid-applied, or other assemblies).
Can you coordinate multi‑site projects across provinces?
Yes. Canadian Roofing Group supports national accounts with standardized scopes, scheduling, documentation, and a corporate-backed warranty pathway.
Do you offer preventative maintenance after installation?
Yes. Subscription-based preventative maintenance is available through participating franchise locations, including bi‑annual inspections and reporting.
What information do you need for a budgetary quote?
Address(es), roof area (if known), access constraints, leak history, and desired timeline. Photos and prior reports help accelerate a budgetary estimate.
Do you install custom metal flashings with torch‑on systems?
Yes. Precision flashings and edge details are critical to performance; we coordinate custom metal where required for watertight transitions.

National Reach. Local Accountability.
Get a budgetary quote and CapEx roadmap for your roof portfolio
Tell us your building type, locations, and timeline. We’ll respond with next steps for assessment, standardized scope options, and a clear path to execution—backed by Canadian Roofing Group’s national network.
CapEx Roadmap
Check My 3-Year Budgetary Roadmap
Request a 3-year CapEx roadmap to forecast maintenance, remediation, and replacement—built for asset managers, stratas, and multi-site portfolios.