How long does a roof last in calgary

How Long Does a Roof Last in Calgary?

In Calgary, the average life expectancy of your roof depends on several factors. Typically, asphalt shingle roofs, the local standard, can last for about 15 to 20 years. However, this durability is influenced by factors like the quality of materials, how well it’s installed, and maintenance.

With its harsh winters and temperature swings, timely maintenance is really important to maintain the roof’s longevity. The good news is that if you opt for different roofing materials, such as metal roofs, you can enjoy a roof that lasts well over 50 years.  

In this article, you will also get an answer to how long a 30-year roof really lasts and what affects its longevity. So, when you are thinking about your roof’s longevity in Calgary, your choice of material, proper installation, and maintenance plays a  very important role in ensuring the durability of your roof.

What Makes Your Calgary Roof Last Longer

Calgary’s tough weather can really wear down your roof. Hot summers, cold winters with heavy snow, and strong winds all year can shorten how long your roof lasts. 

But there are things you can do to make your roof last longer and keep your home safe from the weather. The few best things that help your roof last longer in Calgary are:

  • Roof Installation:

    How well your roof is put in makes a big difference. If it’s not done right, it can leak and have problems that make it wear out faster. Always get a good roofer to do the job, or you can consult with Active Exterior for any kind of roofing queries and guides.

  • Maintenance:

    It is recommended to do proper maintenance after a 2-3 months gap, but in winter, you need to maintain your roofs frequently. Regular roof check-ups can find and fix problems before they get bad. Have a roofer check your roof at least once a year.

  • Ice Dams:

    Ice dams are those ice ridges that form on your roof’s edge. They can block water from draining properly and cause leaks. To stop ice dams, make sure your roof has good ventilation and insulation.

Additional Things To Consider To Enhance The Longevity of Roofs

  • Roofing Materials: What your roof is made of matters. Some materials, like metal roofing, last longer in Calgary’s tough weather than others, like asphalt shingles. Pick materials that can handle Calgary’s weather.
  • Roof Flashing: Roof flashing is a metal material that seals around openings like vents and chimneys. It’s important to have it done right to keep water out and prevent leaks.
  • Roof Slope: The steeper your roof, the better it sheds water and snow. This can help your roof last longer.
  • Roof Underlayment: Roof underlayment is a water-resistant layer under your shingles or roofing materials. It keeps your roof safe from leaks and moisture damage.

7 Key Indicators for Roof Replacement in Calgary

When it comes to knowing when it’s time for a roof replacement, there’s no one-size-fits-all answer. Your roof’s lifespan is influenced by multiple factors, including its history, age, and exposure to the elements – from storms and rain to relentless wind and snow. To ensure your home remains protected, here are essential signs to watch for:

  • Check for Wear and Tear

Periodically inspect your shingles for missing granules. These granules protect your shingles from the elements. When they start to wear away, it’s a sign of wear and tear, which can make your roof less effective at shielding your home from rain, hail, and UV rays. This could lead to water damage and shorten your roof’s lifespan.

  • Moisture Problems

Moss might seem harmless, but it’s a visible clue that your roof could be facing moisture-related issues. Moss thrives in damp environments, suggesting that your roof may be holding onto moisture. 

  • Ventilation Condition

Proper ventilation is essential for your roof’s health. A well-functioning ventilation system regulates temperature and humidity in your attic. If your ventilation isn’t working correctly, it can result in moisture buildup. Excess moisture in your attic can lead to mold and rot, which can compromise your roof’s integrity and indoor air quality.

  • Curling Shingles

When shingles curl or buckle, it’s a clear sign of trouble. Curled shingles lose their ability to protect your home effectively. They may allow water to seep beneath them, causing leaks and water damage. Addressing curled shingles promptly is vital to maintaining your roof’s performance and longevity.

  • Structural Integrity

Roof sagging is a significant concern. It’s a visible sign that your roof’s structure may be compromised. Sagging may result from issues with the roof decking, supports or a buildup of heavy snow. It can lead to more significant structural problems, making it crucial to have it inspected and repaired promptly.

  • Missing Shingles

They expose your roof’s underlayment and your home’s interior to the elements, increasing the risk of water infiltration. Water damage can be expensive to fix, so it’s essential to replace missing shingles promptly to maintain your roof’s protective barrier.

  • Expected Lifespan

Roofs have a finite lifespan, and as they get older, they become more susceptible to wear and tear. Keeping an eye on an aging roof is essential to catch any issues early and ensure it continues to protect your home effectively.

Frequently Asked Questions (FAQs)

  • How Does the Calgary Climate Impact Roof Durability? 

Calgary experiences harsh weather conditions, including hot summers, cold winters with heavy snow, and strong winds year-round. These elements can accelerate wear and tear on your roof, making it crucial to select durable roofing materials and practice routine maintenance.

  • Can Proper Roof Installation Extend the Lifespan of My Roof? 

Yes, professional roof installation is essential for maximizing your roof’s longevity. Proper installation ensures that your roof can withstand the challenging Calgary climate and minimizes the risk of issues that could shorten its lifespan.

  • How Important Is Roof Maintenance for Roof Longevity in Calgary? 

Regular roof maintenance plays a significant role in prolonging your roof’s lifespan. It allows for the early detection and resolution of potential problems, ensuring that your roof remains in optimal condition to protect your home.

  • Are There Additional Measures to Enhance Roof Longevity in Calgary? 

Yes, in addition to material choice, installation quality, and maintenance, factors like addressing ice dams, maintaining proper ventilation and insulation and ensuring adequate roof slopes can all contribute to extending the lifespan of your roof in Calgary.


Ensuring the longevity of your roof in Calgary is a core thing to protect your home from the weather. Timely maintenance, choosing the right materials, and proper installation are key factors. 

To keep your roof in the best shape, consult experts like Active Exterior for guidance and solutions. Your roof is an investment that secures your home, and with the right care, it can stand strong against Calgary’s ever-changing climate. For any assistance or roofing queries, contact Active Exterior today to protect and maintain your roof for years to come.


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