Commercial Roof Curb Installation & Roof Penetration

Commercial Roof Curb Installation & Roof Penetrations in Calgary & Edmonton

Commercial buildings in Calgary and Edmonton demand high precision in commercial roof curb installation and roof penetrations for HVAC units, vents, skylights, pipes, and equipment supports on flat or low-slope roofs. These critical features ensure structural integrity, prevent leaks, maintain proper drainage, and comply with Alberta’s stringent building codes in the face of extreme weather including hail, heavy snow, and freeze-thaw cycles.

Our experienced professionals provide expert commercial roof curb installation, retrofitting, and use of durable weatherproof materials customized to your building’s needs. We minimize business disruption through streamlined processes, seamless coordination with mechanical trades, and deliver long-term watertight solutions that protect your investment, extend roof lifespan, improve energy efficiency, and meet all code requirements.

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Precision Solutions for Reliable Commercial Roof Penetrations

Safe and leak-free rooftop equipment mounting in Alberta’s harsh climate relies on superior commercial roof curb installation. We specialize in custom commercial roof penetrations and curb systems offering outstanding structural support, thermal performance, and compatibility with common commercial roofing systems such as TPO, EPDM, PVC, and modified bitumen used throughout Calgary and Edmonton.

Our commercial roof curb installation includes watertight flashing, proper insulation transitions, and strict adherence to local codes to eliminate water intrusion, condensation issues, and energy waste. We partner closely with property owners, general contractors, and engineers to ensure smooth, hassle-free projects.

Our Expertise in Commercial Roof Curb Installation & Penetration Services

We design and install roof curbs and commercial roof penetrations fully compliant with building codes and safety standards to protect against leaks, drafts, and severe weather exposure.

Services Include:

Our high-quality, code-compliant commercial roof curb installation utilizes materials engineered for Alberta’s extreme winters and unpredictable weather, focusing on durability, fast roof installation, and minimal disruption to commercial operations.

Consultation & Site Assessment

We start with a detailed consultation to understand your requirements for new commercial roof curb installation, retrofit, or repair work. Our team performs comprehensive on-site roof assessments covering existing roofing systems, curb dimensions, structural load requirements, and membrane compatibility (TPO, EPDM, PVC, etc.).

We coordinate project timelines, secure necessary permits, and liaise with HVAC and other trades while verifying full compliance with Alberta building code and safety standards. This step also considers edge cases such as older modified-bitumen roofs or high-wind zones common in Calgary and Edmonton, ensuring every commercial roof curb installation is tailored to real-world conditions rather than generic specifications.

Design & Material Selection

Based on the assessment, we develop custom roof curb designs using CAD software for a perfect fit. We recommend premium materials such as galvanized steel, aluminum, or insulated options best suited for the Calgary and Edmonton climate. Complete detail drawings, material specifications, and accurate cost estimates are provided, along with engineering coordination for proper load distribution and energy efficiency compliance.

This phase explores nuances like thermal bridging reduction for energy-conscious buildings or seismic considerations in certain industrial zones, guaranteeing that every commercial roof curb installation not only meets but exceeds performance expectations in Alberta’s variable conditions.

Preparation & Installation

The roof area is carefully prepared by marking precise openings, removing obstacles, and protecting adjacent surfaces. Roof curbs (pre-fabricated or custom-built) are positioned on the roof deck and securely fastened using appropriate anchors.

Commercial roof penetrations are cut with precision, edges are properly sealed, and multi-layer flashing is integrated with the existing roofing membrane through heat welding, adhesives, or mechanical fastening methods to create a permanent watertight seal. Smooth transitions are achieved using insulation and cant strips. We also address related considerations such as proper slope for drainage to prevent ponding — a frequent issue on low-slope commercial roofs during heavy Alberta snow events.

Testing, Finishing & Follow-Up

After completion, we conduct thorough leak testing (flood test or infrared scanning), verify structural stability, and confirm proper drainage. Final counterflashing and sealants are installed. The work area is cleaned, and we provide comprehensive warranties, insurance documentation, and maintenance guidelines.

We schedule follow-up inspections to monitor performance through Alberta’s seasonal changes and offer expert advice to maximize system longevity. This includes practical implications for freeze-thaw cycles, hail impact resistance, and long-term UV exposure, helping clients avoid costly future repairs.

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Different Types of Roof Curbs & Penetrations We Install

HVAC roof curbs, exhaust fans, and heavy equipment on flat commercial roofs in Calgary and Edmonton require well-insulated roof curb installation. Constructed from galvanized steel or aluminum with rigid fiberglass or polyiso foam insulation, they minimize thermal bridging and condensation in cold climates while ensuring compatibility with TPO, EPDM, and PVC membranes. Factory-assembled or custom options include wood nailers for seamless membrane attachment, delivering full code compliance and load-bearing capacity.

Suitable for lighter-duty commercial roof penetrations such as plumbing vents, pipes, and access hatches where thermal performance is secondary. These durable galvanized steel or aluminum curbs feature flanged bases for secure attachment and are customized in height and size for optimal flashing in warehouses, retail centers, and other commercial facilities facing Alberta’s changing weather.

These angled roof curbs promote superior water shedding on low-slope roofs, reducing ponding risks in Alberta’s snowy and rainy conditions. Ideal for skylights, vents, or equipment, they incorporate raised edges and tapered insulation support for smooth membrane integration and enhanced durability against freeze-thaw cycles.

Expert retrofit roof curbs allow upgrades or replacements without removing existing commercial roof penetrations. Two-piece or adaptor designs integrate easily with current systems, making them perfect for older BUR or mod-bit roofs. We minimize business downtime while adding reinforcements and sealants specifically adapted to Alberta’s harsh environment.

Best Materials for Roof Curbs & Penetrations

In Calgary and Edmonton we use high quality weather resistant curb and penetration installation materials. Alternatives such as galvanized steel are affordable in terms of strength and corrosion protection, whereas aluminum is lightweight and can withstand corrosion. Rigid foam or fiberglass insulated models will make them more energy efficient when it is extreme cold. The materials are all in line with Alberta codes, which guarantees the ability to maintain long watertight integrity, low maintenance, and the best performance in the presence of hails, snow, and UV.

Galvanized Steel Curbs

Galvanized steel is an ideal material to be used on the curbs of the roofing of the commercial buildings in Alberta because it is very strong, cheap and it does not corrode easily because it has a zinc coating. It can support a heavy load of HVAC units, snow and other heavy loads typical of Calgary and Edmonton. Our 16-18 gauge is durable and optional membrane attaching insulation and wood nailers are provided. It is suitable in either new installations or retrofits with long service life under conditions of proper flashing in severe freeze thaw cycles.

Aluminum Curbs

Aluminum curbs are efficient in lightweight usage and they do not rust at all hence they are suitable in Alberta due to the humid summer and the corrosive winter salts. They are often 0.063-0.080 inches thick, which is appropriate to metal buildings and conventional roofs. Our curbs are completely assembled aluminum in order to be installed as a pre-assembled or custom curb with insulation. This is because their natural corrosion resistance will minimize the long-term maintenance and hence, they will be reliable to support the penetrations in fluctuating weather.

Insulated Curb Systems

To reduce heat loss and condensation in commercial flat roofs, insulated curbs using rigid fiberglass or polyiso foam are used to minimize heat loss and condensation. Necessary in cold winters in Edmonton, they are energy-saving and eliminate interior moisture problems. They are matched with compatible TPO/EPDM/PVC membranes flashing. These systems comply with thermal bridging control code, which offers better performance to the temperature extremes of Alberta as well as sustainable building objectives.

Stainless Steel Curbs

Stainless steel curbs have high quality corrosion resistance to high exposure or chemically heavy conditions such as industrial facilities in Calgary/Edmonton. They are more expensive, but they are more durable and do not rust with wet or polluted environment. We make them on critical penetrations where maximum service is essential. They provide unmatched weatherproofing and structural integrity in the harsh business environment when used together with appropriate sealing.

Custom Fabrication Materials

Special requirements in custom curbs include galvanized with aluminum flashing or coated steels. Customized to fit special penetrations (such as large exhausts or seismic zones) they are reinforced, vented or secured. Our choice of materials depends on the type of roof, load and exposure of the roof, compliance with codes and maximum integration in the Alberta climate to give a leak-free and long-lasting performance of all fields.

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

‘’In Markit Roofing, we improve the standard of each project. We do not cut corners and we adhere to the best in the industry.’’

Our reputation has increased over the years. We are members of an exclusive club of roofing contractors in the Alberta Roofing Contractor Association, and our safety record can be reflected in our Workplace Safety COR designation.

Our trained professionals handle all projects in a professional manner that you expect, safety that you require and quality that you demand.

Markit Roofing has a pool of more than 250 skilled staff, which is sufficient to do large commercial works in Calgary and Edmonton, but still, we retain the personal touch that is our trademark.

The reasons why Markit Roofing remains the choice of business when it comes to their roofing and building envelope projects are endless.

Safety record: we have a good safety record and it is our Workplace Safety COR designation. The safety needs of the clients and employees are first before others and in case of a mishap, we are well covered.
Quality of workmanship: our technicians are very trained waterproofing specialists who have been trained to install, maintain and repair any types of waterproofing.
Experience: we have been installing, repairing and maintaining roofing of business owners in Alberta ever since we began in 2007.
Affordability: we are good without being too expensive, we are friendly to the majority of Albertan businesses.
Customer service: it is not only a buzz phrase to us. We say it and we endeavor to offer excellent standards of communication and service to the projects that we handle.

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: