Protect Your Building with Torch-On Roofing in Kelowna
When you own a flat-roofed building, whether an apartment, commercial, or industrial building, you want to ensure the roofing properly protects your building from the elements to ensure your investment is safe. Flat roofing is the most popular type of roofing for apartments and other multi-story buildings, and one of the most common varieties is the torch-on roof. Madge Custom Roofing Ltd offers torch-on roofing in Kelowna, focusing on professional installation for flat and low-slope roofing systems.
Torch-on roofing is a process that ensures the best seal and waterproof finish in flat and low-sloped roofs. It uses an open-flame propane torch to seal the roof against the elements. The roofing material used is an asphalt compound called bitumen, which is often modified by adding rubber or plastic to increase its strength (referred to as ‘modified bitumen’ in this case). This enables it to expand and contract without cracking. Contact us today for more information.
What Is a Torch-On Roofing?
Torch-on roofing, also called torch-down roofing, is a system that uses modified bitumen membranes applied with an open-flame torch. This process bonds the material to the roof deck, forming a waterproof layer.
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Heat is applied to fuse the material directly to the surface.
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Commonly used on low-slope and flat roofs.
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Forms a continuous, sealed barrier that prevents water penetration.
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Suitable for both new construction and roof replacements.
Types of Torch-On Roofing
The two main configurations used in torch-on roofing systems are:
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Two-layer system:
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Comprises a base sheet and a granulated cap sheet.
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Suitable for standard protection needs.
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Offers reliable water resistance and UV protection.
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Three-layer system:
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An interply sheet between the base and cap layers is added.
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Used in high-traffic areas or roofs requiring added durability.
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Often selected for commercial or institutional buildings.
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Each system is selected based on roof structure, performance requirements, and project budget.
Torch-On Roofing Materials
Modified bitumen membranes are used in torch-on roofing. These materials are enhanced forms of asphalt, reinforced with polymers to improve flexibility and strength.
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SBS (Styrene-butadiene-styrene):
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Rubber-based.
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Flexible and performs well in colder temperatures.
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Ideal for climates like Kelowna’s.
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APP (Atactic polypropylene):
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Plastic-based.
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More rigid and suited to warmer environments.
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Less common in colder regions.
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Both types are surfaced with mineral granules to resist UV exposure and mechanical wear.
Advantages of Torch-On Roofing
Torch-on systems are favoured for flat roofs because they provide a balance of performance, cost, and longevity.
Key advantages include:
Superior waterproofing
Broad range of application methods
Versatile choice of top-surfacing
Help with insulation
Contact us today to request an estimate.
Torch-On Roofing Installation
Torch-on roofing installation requires precise technique and experienced handling due to the use of open-flame torches. Our installation process follows all applicable safety codes and manufacturer guidelines.
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Surface preparation:
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The roof deck must be dry, clean, and structurally sound.
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Any old or damaged material is removed if needed.
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Base sheet application:
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A base sheet is rolled out and adhered to the roof deck to create a stable foundation.
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Torch application:
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The cap sheet is heated using a propane torch and bonded to the base layer.
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Skilled installers ensure proper sealing at seams and edges.
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Final inspection:
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All laps, flashing points, and transitions are checked for full adhesion.
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Safety and waterproofing performance are reviewed before completion.
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Proper installation is key to the membrane's longevity and performance. We follow industry standards to ensure consistent, professional results.
Torch-On Roofing Maintenance
Torch-on roofing systems require periodic maintenance to preserve their integrity and extend their service life. Scheduled maintenance reduces the risk of unexpected failures or costly repairs.
Recommended maintenance activities:
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Annual roof inspections:
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Inspect for cracks, blisters, or punctures in the membrane.
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Review all flashing, drains, and seams for wear or lifting.
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Cleaning and debris removal:
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Remove leaves, branches, and other debris to prevent water pooling.
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Clear drainage systems to ensure proper water flow.
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Minor repairs:
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Address small punctures or membrane separation early.
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Re-seal areas as needed using compatible materials.
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Post-storm checks:
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After severe weather events, inspect for damage from wind, hail, or heavy snow.
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Scheduled inspections and timely repair work help maintain the waterproofing integrity of the torch-on roof system. Contact us today to learn more about our torch-on roofing services in Kelowna.
Frequently Asked Questions
Below are common questions related to our torch-on roofing services in Kelowna, covering installation, maintenance, materials, and performance expectations:
