If you’ve lived in Calgary for more than a year, you already know how unpredictable the weather can be. One day it’s sunny and dry, and the next, we’re facing a hailstorm or sudden snowfall—sometimes all in the same week. For homeowners, this means roof maintenance isn’t just a seasonal chore—it’s critical for protecting your investment all year round.
At Lumina Roofing & Exteriors, we’ve seen firsthand how Calgary’s unique climate affects roofing systems. Here’s what every homeowner should know about our local weather and how it impacts your roof—plus, what you can do to stay ahead of the damage.
Calgary’s Climate: A Quick Overview
Calgary faces a wide range of weather extremes, including:
- Heavy snowfalls and freezing temperatures in winter
- Rapid temperature changes due to chinooks
- Intense UV exposure from higher elevations
- Severe hailstorms, some of the worst in Canada
- Strong winds throughout the year
These harsh elements make Calgary one of the most demanding environments for roofing systems in the country.
How Weather Affects Roofing Materials
1. Hail Damage (Especially in Summer)
Calgary is known as the hailstorm capital of Canada. Large hailstones can crack shingles, dent metal roofs, and puncture roofing membranes. That’s why impact-resistant materials like Class 4 asphalt shingles or metal roofing are popular choices here.
2. Freeze-Thaw Cycles
Winter chinooks cause rapid temperature swings. Water that seeps into cracks can freeze and expand, damaging shingles or flashing. This ongoing cycle accelerates wear and often leads to leaks.
3. UV Exposure
Strong UV rays dry out roofing materials over time. Asphalt shingles can curl or crack, and non-UV-rated underlayments degrade faster. Investing in UV-resistant materials is key to long-term performance.
4. Wind Uplift
High winds—especially in open or elevated areas—can lift shingles or metal panels. Aging materials or improper installation makes this worse. Proper nailing, starter strips, and high-wind rated materials are essential.
Choosing the Right Roofing System for Calgary
At Lumina Roofing & Exteriors, we recommend systems built to withstand Alberta’s climate, such as:
- Class 4 impact-resistant shingles (e.g., Malarkey or CertainTeed)
- Standing seam metal roofing for superior strength
- Synthetic underlayments that resist water and UV rays
- Proper attic ventilation to prevent ice damming and regulate indoor temperature
We’re here to guide you through each option—balancing durability, appearance, and budget.
Why Regular Roof Inspections Matter
Even the toughest roofing materials need regular checkups. We recommend annual inspections, ideally:
- In the spring, after snowmelt
- Or in the fall, before winter hits
Catching small issues early—like lifted shingles or blocked eavestroughs—can prevent costly repairs down the road.
Need Help With Your Roof?
Whether you’re looking to upgrade your roof, schedule an inspection, or repair weather damage, Lumina Roofing & Exteriors is here to help. Calgary’s weather may be unpredictable, but with the right roofing system and proactive maintenance, your home doesn’t have to suffer for it.
