Living in Calgary means living with weather that changes quickly and dramatically. From freezing winters to sudden
summer storms, your roof is always under pressure. Over time, these seasonal changes can affect how long your roof
lasts. Knowing how each season impacts your roof helps you understand why regular care and timely maintenance
are so important.
Winter: Heavy Snow and Ice Dams
Calgary winters bring heavy snow, ice, and freezing temperatures. The weight of snow can put stress on shingles and
roof structures, especially if it builds up over time. Ice dams are another major concern—when melting snow
refreezes near the roof’s edge, it traps water behind it. This water can seep under shingles, leading to leaks, damaged
insulation, and even mold inside the home.
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Spring: Freeze–Thaw Cycles and Rapid Melting
Spring is unpredictable. The constant freezing at night and thawing during the day can expand small cracks in
shingles or flashing, making them bigger. On top of that, when snow melts quickly, your gutters and downspouts
need to handle a lot of water at once. If they’re clogged or damaged, water may pool on the roof or around the
foundation, causing long-term damage.
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Summer: Heat and Sudden Storms
Summer in Calgary can swing between hot sunny days and powerful thunderstorms. Strong UV rays slowly wear
down shingles, making them brittle over the years. Hailstorms are another risk—large hailstones can crack shingles,
dent metal flashing, and damage vents. Wind-driven rain during storms may also push water under weak spots in the
roof.
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Fall: Leaves, Debris, and Temperature Drops
In autumn, falling leaves and branches often clog gutters, preventing water from draining properly. Moisture trapped
in debris can speed up roof deterioration. Temperatures also drop quickly, which prepares the roof for another harsh
winter. Without clearing gutters and trimming trees, you’re more likely to face ice problems once the snow arrives.
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The Year-Round Impact
Each season adds its own stress, and over time, the combined effect reduces a roof’s durability. A roof that might last
25 years in a milder climate could wear out sooner in Calgary if not properly maintained. That’s why regular
inspections, seasonal cleanups, and prompt repairs are essential for protecting your investment.
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How to Protect Your Roof
Inspect seasonally: Check for missing shingles, clogged gutters, or damaged flashing after every major weather
change.
Clean regularly: Keep gutters and roof surfaces clear of leaves, snow, and debris.
Repair quickly: Small cracks or leaks should be fixed before they become bigger problems.
Schedule professional check-ups: Having experts look at your roof once or twice a year can catch issues early.
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Final Thought
Calgary’s climate can be tough, but with regular care and attention, your roof can stand strong through every season.
Understanding how weather impacts your home is the first step in keeping it safe, durable, and ready for whatever
nature brings next.
