

Whether you’re a homeowner or a business owner, flat roofing in Calgary can provide you with a long-lasting, low-maintenance, and economical roofing solution.
At Angel's Roofing, we pride ourselves on delivering durable, high-performance flat roofing systems that stand the test of time. With more than 25 years of experience, our team is committed to artistry through craftsmanship, using only the finest materials for results that stand the test of time.
Whether you require new installation, repair, or maintenance, we’re dedicated to providing you with dependable service. Contact us today to find out how or to get a free estimate!

Flat Roofing – Reliable, Cost-Effective & Weather-Resistant
Flat roofing is a practical and efficient solution for commercial buildings and modern residential designs. Built for durability, energy efficiency, and easy maintenance, flat roofs provide seamless waterproofing and superior drainage. Using high-quality materials such as SBS roofing, TPO roofing, EPDM roofing, and Single Ply roofing, flat roofing systems offer long-term protection against Calgary’s extreme weather conditions.
We also work with top-quality roofing materials, including SBS roofing, Single Ply roofing, Euroshield roofing, Asphalt, Shingles, EPDM roofing, Metal roofing, and TPO roofing.
We are a Calgary-based roofing and exterior contractor and we also offer top quality roofing services for homes and businesses, including:
✅ Residential Roof Installation
✅ Residential Roof Inspection
✅ Residential Roof Replacement
✅ Residential Roof Repair
✅ Residential Roof Maintenance
✅ Residential Roof Hail Damage Repair
✅ Residential Roof Water Damage Repair
✅ Residential Roof Winter Proofing
✅ Commercial Roof Installation
✅ Commercial Roof Inspection
✅ Commercial Roof Replacement
✅ Commercial Roof Repair
✅ Commercial Roof Maintenance
✅ Commercial Roof Hail Damage Repair
✅ Commercial Roof Water Damage Repair
✅ Commercial Roof Winter Proofing

What is Flat Roofing?
Flat roofing refers to a low-slope roofing system, typically designed with a gradient of 3:12 or less. Flat roofs are the signature look in contemporary design for homes and businesses alike. They even serve practical needs that go beyond the aesthetic beauty of their pitched cousins.
These systems are especially favored in cities, where space is at a premium. Flat roofs can accommodate a variety of functional and aesthetic uses, from green roofs to beer gardens to easy access for rooftop HVAC units.
Water pooling is a major threat to the durability of these systems. Therefore, proper drainage is extremely important. Whether it’s TPO, PVC or EPDM, these materials can all provide strengthened durability and impressive lifespans, ranging from 25-30 years!
EPDM excels when it comes to sustainability. With the right maintenance, it can last for 50 years or more, even in Calgary’s extreme climate.







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Key Advantages of Flat Roofing
Not only is flat roofing a smart fix for a wide variety of Calgary buildings, it’s one that boasts a number of notable advantages. One of its key advantages is cost-effectiveness, largely owing to the fact that they require less material than sloped roofs. This provides an attractive solution for both new residential and commercial construction.
Maintenance is another benefit. Flat roofing makes wear-and-tear much easier to maintain, given the flat designs help make inspections and repairs pretty cut-and-dry.
Flat roofs enhance energy efficiency when used with proper insulation and reflective materials. This powerful insulation duo can trim your heating bills during Calgary’s long, cold winters and cooling costs in the summer.
The sleek, minimalist look of flat roofs pairs perfectly with the clean lines of today’s architectural designs. TPO and EPDM products provide excellent durability and versatility.
They’re even conducive to the installation of solar panels, which can help your business’s reliance on sustainable energy sources.
Flat Roofing Materials: A Comparison
Each flat roofing material has its own unique advantages and disadvantages relating to durability, cost, and green-building practices, especially under the unique climate of Calgary.
Material | Durability (Lifespan) | Environmental Impact |
---|---|---|
PVC | 20–30 years | Recyclable, energy-efficient |
BUR (Tar & Gravel) | 15–20 years | High energy use to produce |
Modified Bitumen | 20–30 years | UV-resistant |
TPO | 15–20 years | Reflective, reduces cooling costs |
EPDM | Up to 50 years | Recycled content, eco-friendly |
The recycled content in EPDM gives it green building credentials, and TPO’s ability to reflect UV rays reduces the demand for cooling energy.
Modified bitumen’s UV protection and BUR’s tar-and-gravel buildup contribute to long-term toughness.
Bad workmanship is a common Calgary roof killer so professional care is an investment in many years of protection.
Flat Roof Installation in Calgary
Flat roof installation starts with detailed research. This phase includes an inspection of the structure, if applicable, and signing off on its readiness for the project.
Then, we clean the roof down to the membrane and apply a little pitch for the water to run off effectively. We utilize materials like EPDM or TPO for cooler, environmentally friendly roofing systems.
These materials are known for their resilience and energy-saving properties, providing a strong and trustworthy seal. Attainable energy efficiency is achieved through proper insulation and ventilation built in to maximize energy savings and indoor comfort.
Specialized knowledge is important. Through Calgary’s severe climate, our long-lasting specialization protects against Calgary’s hard-hitting wind, hail, and snow.
Certifications guarantee our approach to local codes. Incorporating materials such as recycled rubber and sun-reflective membranes, your roof is an eco-friendly powerhouse while keeping your building resilient.
With proper maintenance, a flat roof can last as long as 30 years.

Common Flat Roof Problems & Solutions
Flat roofs are a practical choice for Calgary's residential and commercial properties, but they require consistent care to deliver their full lifespan. Some common flat roof problems are leaks from damaged membranes, ponding water due to inadequate drainage, and deterioration with age.
TPO membranes generally have a lifespan of 25 to 30 years. EPDM alternatives can last as much as 40 years, though each choice needs frequent maintenance. Having your roof inspected annually, particularly in the spring and fall, allows for the detection of small problems before they become major repairs.
Taking care of these issues right away prevents them from turning into far more expensive repairs. Regular maintenance is important. Proper drainage systems are key, as any ponding can create a structural weak point or lead to leak creation.
Older, traditional BUR systems in Calgary are being replaced with newer systems that use more sustainable materials, signaling a positive trend toward more durable solutions.
Maintenance and Repair Best Practices
Maintenance is the key to keeping your Calgary flat roof healthy and functional for years to come. Regular maintenance tasks include inspecting for cracks, blisters, or pooling water, clearing leaves and debris to prevent drainage blockages, and checking seams and flashings for wear.
Developing a schedule of annual, professional inspections is very important. Properly trained experts will be able to detect early signs of deterioration, such as membrane shrinkage or in some cases punctures, that the untrained eye may easily overlook.
By putting these protective coatings on roofs, most typically elastomeric or silicone-based coats, UV resistance and weatherproofing are provided, greatly increasing the lifespan of the roof. Taking care of small repairs when they are needed, such as sealing a leak or replacing a damaged section, ensures encroachments do not turn into expensive repairs.
Every aspect plays an important role in ensuring flat roofing systems last as long and perform as well as possible.
Choosing the Right Flat Roofing Contractor
Finding a qualified flat roofing contractor in Calgary is imperative. It protects your roof from this city’s jaw-dropping weather extremes.
Experience is undeniably important in the roofing industry. Working with contractors who know how to address heavy snow, hail and high winds can really make a difference.
Certifications and extensive customer reviews are a sign of professionalism, experience, and previous success. Obtaining several quotes allows for a realistic comparison of pricing and services offered, while still ensuring that quality has not been sacrificed.
Look to contractors who provide warranties on their workmanship and the materials used, guarantees that show they take pride in their work.
Always check a potential contractor’s licensing and insurance to avoid liability risks.
With more than 25 years of experience, we deliver peace of mind and long-lasting results to protect your investment.
HOW IT WORKS
Step 3: Final Inspection & Satisfaction Guarantee
We conduct a thorough inspection, clean up the site, and ensure you’re 100% satisfied with the finished project.
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Step 1: Free Consultation & Estimate
Tell us what you need! We assess your project, discuss your options, and provide a clear, upfront estimate—no surprises.
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Step 2: Expert Installation & Quality Work
Our skilled team gets to work using high-quality materials and proven craftsmanship to ensure a durable, long-lasting result.
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Flat roofing presents a robust, efficient option for properties in Calgary. It offers outstanding durability, minimal maintenance, and a crisp aesthetic that complements our distinctive local architecture and looks amazing in our harsh but beautiful climate. Angel’s Roofing isn’t just another flat roofing Calgary contractor. We pride ourselves on using only trusted materials so you can count on your flat roof to stand the test of time. You can always trust our years of industry knowledge combined with our commitment to your safety and satisfaction.
If you’re looking to install a flat roofing solution you can trust, we are just the team you need. Contact us today to discuss your requirements, and we’ll develop a customized implementation plan that aligns with your objectives. Contact us today to book an appointment or to request your free estimate. Count on our professionals to keep your property safe, beautiful, and well cared for with knowledgeable expertise and trustworthy service.