Portfolio News Contact Us Chat

Torch-On Roofing • Kelowna & the Okanagan TORCH-APPLIED
SBS.

Two layers of SBS membrane, fused with a torch into one waterproof sheet. Tough underfoot, simple to repair.

Request a Free Estimate Explore Benefits
4.8 on Google120+ reviews
Or call directly 250-258-8600
20–30 yr
Lifespan
Multi-Ply
Redundancy
Class A
Fire Rating Available
100%
Insured
The System

SBS‑Modified Bitumen.
Torch‑Applied. Multi‑Ply.

Torch-applied roofing uses an open flame to fuse an SBS-modified bitumen cap sheet to a base sheet, creating a monolithic waterproof bond across the entire roof surface. The heat melts the bitumen on the underside of the cap sheet, bonding it fully to the base sheet.

Preferred for demanding low-slope applications, torch-applied systems deliver multi-ply redundancy, exceptional waterproofing, and a walkable surface that stands up to foot traffic and mechanical equipment. Decades of proven performance in extreme climates make it a trusted choice for contractors and building owners alike.

Why Owners Choose Torch-On
  • IKO Certified Installer — Diamond Shield Warranty available
  • IKO is our go-to brand. We also offer other brands
  • Fully adhered application
  • Multi-ply redundancy — built-in backup waterproofing layer
  • Exceptional waterproofing — monolithic seal across the entire roof
Inside the System

Two plies.
Torched into one.

Watch a Premium SBS torch-on system come together — base and cap sheets rolled out and flame-fused over an asphaltic cover board. The system we install most on commercial roofs.

  1. 01
    Steel DeckCorrugated galvanized B-deck, fastened to spec
  2. 02
    Vapour BarrierSeals the deck so interior moisture stays out of the insulation
  3. 03
    Polyiso InsulationTwo layers, joints staggered — no thermal shortcut
  4. 04
    Cover BoardAsphaltic board — the only surface a torch may touch
  5. 05
    SBS Base Sheet3.0 mm base ply, torch-welded — the underside film burns off as it bonds
  6. 06
    Edge Metal & Base Flashing4" flange primed and nailed 4" o.c., then flashed 6" onto the field
  7. 07
    Granulated Cap Sheet4.0 mm mineral cap — 90 mm selvage laps, offset from the base
The Material

The Cap Sheet, Up Close.

SBS-modified bitumen with a crushed-mineral granule surface — armour against UV, hail, and foot traffic. At every lap the bitumen is torched to a controlled melt, squeezing out into a continuous waterproof weld.

  • 2-Plyredundant waterproofing
  • 180°C+torch application temp
  • 20–30 yrservice life
  • GranuleUV + impact armour
Advantages

Why Choose Torch-Applied.

Fully Adhered Application
Each layer is torched to the one below, so the two sheets become one.
Multi-Ply Redundancy
The base sheet and cap sheet work together as a redundant waterproofing assembly. Even if the top layer is damaged, the underlying ply continues to protect the building from water intrusion.
Exceptional Waterproofing
The torch-fused bond creates a monolithic seal across the entire roof surface. Every lap is fused into the sheet beneath it.
Self-Healing Properties
SBS stays flexible, so it moves with the building instead of cracking, and small scuffs in the surface tend to close up in summer heat.
Walkable Surface
The granule-surfaced cap sheet provides a durable, textured surface that handles regular foot traffic from maintenance crews, HVAC technicians, and building inspectors.
Proven Track Record
Torch-applied modified bitumen has decades of proven performance in the most demanding climates worldwide. Building owners and contractors trust it for reliable, long-term waterproofing.
Applications

Ideal For.

Torch-applied modified bitumen excels on low-slope applications where fully adhered waterproofing and multi-ply redundancy are essential. Its durability and walkability make it ideal for a wide range of building types.

Two-ply SBS on an industrial building, the valley beyond

The story: Industrial Re-Roof

  • Commercial Buildings
    Office buildings, retail centres, and commercial properties that demand proven waterproofing performance and a surface that can handle regular maintenance access.
  • Low-Slope Residential
    Homes with flat or low-slope roof sections where a fully adhered, multi-ply system gives you a second waterproof layer if the first one is ever breached.
  • Balconies & Rooftop Decks
    The waterproofing layer under pavers or decking.
  • Mechanical Equipment Areas
    Tough around curbs and walkways where technicians come and go.
Local Performance

Torch-Applied in the Okanagan.

The Okanagan Valley presents unique roofing challenges. Torch-applied modified bitumen’s multi-ply construction and SBS polymer flexibility make it well suited to all of them.

Snow and Meltwater
Wet snow sits on a flat roof for weeks. Two fused plies keep the meltwater out the whole time.
Freeze-Thaw Durability
Repeated freeze-thaw cycles crack rigid materials, but the SBS polymer in torch-applied membranes stays flexible through extreme temperature swings. The fully adhered system prevents water migration even during rapid cycling.
Summer Heat Advantage
The granule surface provides UV protection year after year.
Our Work

Projects.

The church roof from straight above, finished in torch-on Kelowna • Church • Two-Ply IKO Torch-On • 2025Tar & Gravel to Torch-On ConversionThe Story The finished torch-on layover along the street side of the building Kelowna • Downtown Commercial Building • IKO Torch-On Layover • 2024–2025Downtown Torch-On LayoverThe Story The gas station canopy from above with its new torch-on roof Penticton • Gas Station Canopy • Two-Ply IKO Torch-On • 2023Gas Station Canopy Re-RoofThe Story

All projects

Related
Common Questions

Torch-Applied FAQ.

A professionally installed torch-applied SBS modified bitumen roof typically lasts 20–30 years. The multi-ply construction and fully adhered application create exceptional durability. With regular maintenance and inspections, many torch-applied roofs exceed their expected lifespan.
SBS (Styrene-Butadiene-Styrene) is a synthetic rubber polymer added to asphalt to create a flexible, durable roofing membrane. The rubber modifier gives the membrane exceptional elongation and recovery properties, allowing it to stretch and return to shape through temperature cycling without cracking.
Torch work is safe when it is done to procedure, and we treat it that way. Our crews follow strict hot-work practice — fire watches, proper clearances, and extinguishers staged before a torch is ever lit. We also carry fire insurance covering hot-work operations on top of our commercial general liability coverage, which is not something every roofer bothers to hold, and every crew member is covered under WorkSafeBC.
Yes — this is one of torch-applied roofing’s greatest advantages. Damaged areas can be patched with the same material by torching a new piece directly over the repair area, creating a fully adhered repair. No special adhesives or sealants are needed.
Absolutely. SBS modified bitumen excels in the Okanagan climate. Its rubber-modified composition handles freeze-thaw cycling without cracking, the multi-ply construction provides excellent waterproofing during spring snowmelt, and the granule-surfaced cap sheet resists Kelowna’s intense UV exposure.
Get Started

Ready for Torch-Applied?

Whether you’re planning a new flat roof, replacing an aging system, or need a reliable waterproofing solution — our torch-applied roofing crews are ready to help you choose the right system for your building.

Request a Free Estimate View All Systems
4.8 on Google120+ reviews