Modified Bitumen
(Mod Bit Roofing) System

Protect your property with the Mod Bit Roofing System, designed for flat and low-slope roofs that need strong waterproofing, flexibility, and durability. Our skilled team ensures clean installation, leak resistance, and long-lasting protection against heat, rain, and daily exposure.
Markit Roofing
Markit Roofing

Modified Bitumen Roofing System

At Markit Roofing, we provide dependable Mod Bit roofing system solutions for homes, commercial buildings, and industrial properties that need durable, weather-resistant protection. Our team focuses on quality materials, careful installation, and long-term performance, so every roof can handle heat, rain, wind, and daily exposure. A modified bitumen roof is a smart choice for flat or low-slope surfaces because it offers strength, flexibility, and easy maintenance.

With practical guidance and professional workmanship, Markit Roofing helps property owners protect their investment, reduce future repair costs, and enjoy a roofing system built for reliable service through changing seasons and demanding conditions across residential, commercial, and light industrial roofing projects.

What is a Mod Bit Roofing System?

A Mod Bit roofing system, also called modified bitumen roofing, is an asphalt membrane roof improved with polymer modifiers for added strength and flexibility. It is commonly installed on flat and low-slope roofs using heat, adhesive, or self-adhered sheets. The system creates a protective surface that helps resist leaks, weather damage, and temperature movement for years in demanding conditions.
Mod Bit roofing is useful for roofs that need both toughness and flexibility. Its layered membrane structure helps protect weak areas, seams, flashing, drains, and roof edges when installed correctly. Property owners often choose it because it supports different application methods, offers good weather resistance, and can be repaired without replacing the entire roofing system, which can be done quickly during normal maintenance work, too.

Types of Mod Bit Roofing System

Mod Bit roofing systems are available in different types based on polymer blend and installation method. APP membranes are known for their heat resistance, while SBS membranes offer greater flexibility across changing temperatures. Some systems are applied with torch heat, some with cold adhesive, and others with peel-and-stick sheets. The right type depends on the roof design, safety requirements, and budget.
Each Mod Bit type serves a specific purpose. Torch-applied systems create strong bonds, but they require trained installers and proper fire safety precautions. Cold-applied systems reduce open flame concerns, while self-adhered sheets allow cleaner installation. APP and SBS options perform differently under heat, cold, and movement, so a roof inspection is important before making the final performance choice.

Our Process

Roof Inspection and Planning

Our process begins with a detailed roof inspection to understand the existing surface, drainage, insulation, flashing, seams, and visible damage. We check for ponding water, cracks, soft areas, loose materials, moisture signs, and weak roof edges that may affect the new system. This assessment helps us decide whether repair, overlay, or replacement is the better option.
 
After reviewing the roof condition, we recommend the right Mod Bit membrane, application method, and project plan. Careful planning helps reduce unexpected problems and supports a stronger, safer, and more reliable roofing result for the building over time, too.

Surface Preparation and Installation

Before installation, we prepare the roof surface so the Mod Bit membrane can bond and perform correctly. This may include removing debris, repairing damaged areas, drying the surface, improving insulation, and leveling uneven sections. A clean and stable base is important because poor preparation can weaken seams and shorten roof life. Once ready, we install the selected membrane using torch, cold adhesive, hot asphalt, or self-adhered application.
 
We pay close attention to seams, drains, curbs, vents, edges, and flashing details to create a neat, watertight, and durable finish that provides long-term building protection.

Final Inspection and Maintenance Support

After installation, we complete a final roof check to confirm that seams, edges, flashing, drains, and membrane overlaps are properly sealed. We inspect the surface for wrinkles, gaps, weak bonds, loose areas, or details that may need correction. This step helps ensure the Mod Bit roofing system is ready to protect the building against moisture and weather exposure.

We also guide the owner on basic maintenance, cleaning, inspection timing, and warning signs. With routine care, the roof can continue performing well and avoid many costly repair issues in the future through every changing season ahead.

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What can you expect from Markit Roofing?

In Markit Roofing, we offer superior Mod Bit roofing solutions that are supported by a combination of years of experience and a customer-centric strategy. Our licensed crews are skilled to install high-quality and long-lasting roofs made of the best materials and applied techniques that ensure your property is resistant to the rough weather conditions, as well as increase its value and energy efficiency. Look forward to high-quality service, consultation to completion, and clear communication and minimal disturbance.

Durable

Multi-ply construction and polymer reinforcement is made to provide our Mod Bit roofs with unique resistance to punctures, weathering and thermal cycling, and also provides long-term protection.

Safe

The installation is done under strict safety requirements and the options, such as self-adhered system, eliminate fire risks and fumes, which creates a safe environment during and after work.

Dependable

Supported by skilled crews, superior materials, and robust warranties, Markit Roofing provides a reliable, leak free operation that you can count on over the years.

Frequently Asked Questions

A Mod Bit roof normally lasts 20-30 years or longer, with proper installation and care, depending on climate, the number of plies, and maintenance.

The polymer-modified asphalt sheets applied by Mod Bit are more flexible and easier to install, whereas the traditional BUR consists of several alternating layers of asphalt and felts (4 or more plies) to achieve redundancy, but is more labor intensive.

Yes, in most situations, as long as the old roof is in a good condition and complies with the code requirements where the overlays are concerned; we test compatibility when we are consulting to avoid complications.

Torch-down (heat-welded), self-adhered (peel-and-stick), and cold adhesive applications are common and used depending on the conditions of the site, its safety, and the requirements of the project.

Yes, particularly when there are reflective granules or cool roof coverings that curb heat absorption, cooling down the expenses of cooling and the general efficiency of the building.

Why Choose Us

“At Markit Roofing, we take quality of any project to the next level. We do not compromise and ensure that we have the best in the industry.’’

Our reputation has been increasing over the years. We became part of a small group of roofing contractors in Alberta Roofing Contractor Association in 2016 and our safety record is represented by our Workplace Safety COR designation.

Our highly trained staff will handle any project that you require with professionalism, the safety you require and the quality you desire.

Markit Roofing currently employs more than 250 competent employees and we are big enough to undertake large commercial jobs in Calgary and Edmonton, but at the same time we retain the personal touch which makes us different.

The list of reasons why Markit Roofing is still preferred by businesses in their projects related to roofing and building envelope is endless.

From Planning to Perfection – We’ve Got Your Roof Covered

We will support you in the installation and maintenance of the appropriate roofing solution to your building and your budget.

You can expect:

We will be appointed a project manager who will facilitate you in arranging:

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