Roof Penetration & Curb Installation Calgary & Edmonton

Commercial Roof Penetration & Curb Installation

Commercial Roof Penetration & Curb Installation in Calgary & Edmonton

Commercial buildings in Calgary and Edmonton often require precise roof penetrations and curb installations for HVAC units, vents, skylights, pipes, and equipment supports on flat or low-slope roofs. These elements are critical for maintaining structural integrity, preventing leaks, ensuring proper drainage, and complying with Alberta's strict building codes amid extreme weather like hail, heavy snow, and freeze-thaw cycles.

Our experienced team handles professional installations and retrofits using durable, weather-resistant materials tailored to local conditions. We minimize business disruption with efficient processes, coordinate with mechanical trades, and deliver watertight, long-lasting solutions that protect your property and extend roof lifespan while supporting energy efficiency and code requirements.

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Precision Solutions for Reliable Roof Penetrations

Proper roof penetrations and curbs form the foundation for safe, leak-free rooftop equipment mounting in Alberta’s challenging climate. We specialize in custom installations that ensure structural support, thermal performance, and seamless integration with common commercial roofing systems like TPO, EPDM, PVC, and mod bit prevalent in Calgary and Edmonton.

Our installations prioritize watertight flashing, proper insulation transitions, and compliance with local codes to prevent water intrusion, condensation issues, and energy loss. We work with property owners, contractors, and engineers for seamless project delivery.

Our Expertise in Curb & Penetration Services

Our roof curbs and penetration systems are built to comply with safety and building codes, providing long-lasting support and protection against leaks, drafts, and weather exposure.

Services Include:

We deliver high-quality, code-compliant curb and penetration work using materials suited to Alberta’s harsh winters and variable weather, focusing on durability, quick installation, and minimal roof disturbance for commercial properties.

Consultation & Site Assessment

We begin with a detailed consultation to understand your needs—whether new installation, retrofit, or repair. Our team conducts an on-site evaluation of the existing roof system, measures for curb sizing, reviews structural loads, and assesses compatibility with roofing membranes (e.g., TPO, EPDM).

We discuss timelines, permits, and coordination with HVAC or other trades. Safety protocols and Alberta building code requirements are confirmed to ensure a smooth project.

Design & Material Selection

Based on assessment, we design custom curbs and penetrations using CAD for precise fit. We select optimal materials like galvanized steel, aluminum, or insulated options suited to Calgary/Edmonton’s climate. Flashing details, insulation transitions, and drainage considerations are finalized.

We provide detailed drawings, material specs, and cost estimates. Coordination with mechanical engineers ensures proper load distribution and energy efficiency compliance.

Preparation & Installation

We prepare the roof area by marking openings, removing obstacles, and protecting surrounding surfaces. Curbs are fabricated or delivered pre-assembled, then precisely positioned and secured to the deck with appropriate fasteners.

Penetrations are cut carefully, with edges sealed. Flashing is installed layer by layer, integrating with the existing membrane using heat welding, adhesives, or mechanical methods for a watertight seal. Insulation and cant strips ensure smooth transitions.

Testing, Finishing & Follow-Up

Post-installation, we test for leaks using flood or infrared methods, verify structural stability, and ensure proper drainage. Final flashing, counterflashing, and sealants are applied. The area is cleaned, and we provide documentation for warranties and insurance.

Follow-up inspections are scheduled to monitor performance in Alberta’s seasonal changes, offering maintenance advice to extend system life and prevent future issues.

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Different Types of Roof Curbs & Penetrations We Install

Insulated roof curbs are essential for supporting HVAC units, exhaust fans, and heavy equipment on flat commercial roofs in Calgary and Edmonton. Typically constructed from galvanized steel or aluminum with rigid fiberglass or foam insulation, they reduce thermal bridging and condensation in cold climates. We install factory-assembled or custom curbs with wood nailers for membrane attachment, ensuring watertight integration with TPO, PVC, or EPDM systems while meeting load and code requirements.

Non-insulated curbs suit lighter penetrations like pipe vents, plumbing stacks, or access hatches where thermal performance is less critical. Made from durable galvanized steel or aluminum, they provide strong, economical support with flanged bases for secure deck attachment. We customize heights and sizes for proper flashing, preventing leaks around penetrations common in warehouses and retail centers across Alberta’s variable weather.

Canted curbs feature angled sides for better water shedding and transition on low-slope roofs, ideal for Alberta’s snow and rain. Used for skylights, vents, or equipment in pitched applications, they include raised edges or tapered insulation support. Our installations ensure seamless membrane integration, reducing ponding risks and enhancing durability in freeze-thaw conditions prevalent in Edmonton and Calgary commercial properties.

Retrofit curbs accommodate existing penetrations during roof replacements or upgrades without full tear-off. These adapt to irregular openings, often using two-piece or adapter designs for easy shingling into current systems. We specialize in watertight retrofits for older BUR or mod bit roofs, incorporating reinforcements and sealants suited to Alberta’s harsh environment, minimizing downtime for businesses.

Best Materials for Roof Curbs & Penetrations

We select premium, climate-resilient materials for curb and penetration installations in Calgary and Edmonton. Options like galvanized steel offer cost-effective strength and corrosion resistance, while aluminum provides lightweight durability and rust-proof performance. Insulated models with rigid foam or fiberglass enhance energy efficiency against extreme cold. All materials comply with Alberta codes, ensuring long-term watertight integrity, minimal maintenance, and optimal performance in hail, snow, and UV exposure.

Galvanized Steel Curbs

Galvanized steel is a top choice for commercial roof curbs in Alberta due to its exceptional strength, affordability, and corrosion resistance from zinc coating. It withstands heavy loads from HVAC units and snow accumulation common in Calgary and Edmonton. We use 16-18 gauge for durability, with optional insulation and wood nailers for membrane attachment. Ideal for new installs or retrofits, it offers long service life with proper flashing in harsh freeze-thaw cycles.

Aluminum Curbs

Aluminum curbs excel in lightweight applications while resisting rust entirely, making them perfect for Alberta’s humid summers and corrosive winter salts. Often 0.063-0.080 inch thick, they suit metal buildings and conventional roofs. We install pre-formed or custom aluminum curbs with insulation options for thermal performance. Their natural corrosion resistance reduces long-term maintenance, ensuring reliable support for penetrations in variable weather.

Insulated Curb Systems

Insulated curbs incorporate rigid fiberglass or polyiso foam to minimize heat loss and condensation on commercial flat roofs. Essential in Edmonton’s cold winters, they maintain energy efficiency and prevent interior moisture issues. We pair them with compatible flashing for TPO/EPDM/PVC membranes. These systems meet code for thermal bridging control, providing superior performance against Alberta’s temperature extremes and supporting sustainable building goals.

Stainless Steel Curbs

Stainless steel curbs offer premium corrosion resistance for high-exposure or chemical-heavy environments like industrial facilities in Calgary/Edmonton. Though higher cost, their durability eliminates rust concerns in wet or polluted conditions. We use them for critical penetrations requiring maximum longevity. Combined with proper sealing, they deliver exceptional weatherproofing and structural integrity in demanding commercial settings.

Custom Fabrication Materials

Custom curbs use combinations like galvanized with aluminum flashing or coated steels for specialized needs. Tailored for unique penetrations (e.g., large exhausts or seismic zones), they incorporate reinforcements, vents, or security features. We select materials based on roof type, load, and exposure, ensuring code compliance and optimal integration in Alberta’s climate for leak-free, long-lasting performance across sectors.

Maintenance & Repairs Services

Roofing Installation & Replacement Services

Emergency Roof Repair Service

Waterproofing & Coating Services

Roofing Inspection & Leak Detection Services

Insurance Claim Assistance Service

Why Choose Us

“At Markit Roofing, we elevate the quality of every project. We never cut corners and maintain the highest standards in the industry.”

Our reputation has grown steadily over the years. In 2016, we joined a select group of roofing contractors in the Alberta Roofing Contractor Association, and our safety record is recognized through our Workplace Safety COR designation.

Our experienced team manages every project with the professionalism you expect, the safety you need, and the quality you demand.

With over 250 skilled staff, Markit Roofing is large enough to handle major commercial projects in Calgary and Edmonton, yet still maintains the personal touch that sets us apart.

There are countless reasons why businesses continue to choose Markit Roofing for their roofing and building envelope projects.

Safety record: our safety record is second to none and is recognized by our Workplace Safety COR designation. We put the safety needs of clients and employees above all else and, in the event of an accident, we are fully insured.
Quality of workmanship: our technicians are highly trained waterproofing experts experienced at installing, maintaining and repairing all kind of waterproofing systems.
Experience: we’ve been helping business owners in Alberta install, repair, and maintain their roofing since we started out in 2013.
Affordability: we’re good but we don’t price ourselves out of your league; we’re affordable for most Alberta businesses.
Customer service: it’s not just a buzz phrase for us. We mean it and always strive to provide superior levels of communication and service on the projects we manage.

What can you expect from us?

We’ll work closely with you to install and maintain the right roofing solution for your building and your budget.

You can expect:

High-quality work with long-term warranties
Attention to detail
First-class contractors committed to quality
Top-class materials from trusted manufacturers
Affordable solutions for all scope of building projects

Once we’re appointed, a dedicated project manager will help you arrange: