Wind Damage Is Rarely as Simple as It Looks

Replacing only the visible missing shingles without inspecting the surrounding zones is one of the most common wind repair mistakes. The shingles that blew off were likely subjected to significant uplift repeatedly before they finally failed. The shingles immediately adjacent experienced similar forces and may have compromised sealant strips even though they’re still physically in place. A proper wind damage inspection may take 30 to 45 minutes on the roof and gives you a complete picture. It’s worth it.

Yes, wind damage is typically covered under Alberta homeowner insurance policies as a sudden and accidental event. Unlike hail damage (where many policies now have separate, higher deductibles), wind damage generally falls under the standard deductible. However, policies vary, and some have minimum wind speed thresholds or exclusions for gradual deterioration if shingles were already near end of life. Document the storm event with date, time, and weather data, and have a professional inspection done before calling your insurer.

A few possibilities. First, the shingles may have been installed in cold temperatures (below about 10°C) without hand-sealing, which means the adhesive sealant strips never properly activated. Second, they may have been improperly nailed, with nails placed above the ArmourZone, which provides significantly less wind resistance than correct positioning. Third, the wind event may have simply exceeded the shingles’ rated resistance. IKO Cambridge shingles are rated for standard wind. IKO Dynasty and Nordic are rated to 210 km/h. We’ll tell you what we find during the inspection.

Generally yes. A Chinook that produces wind speeds exceeding your policy’s definition of a windstorm event (typically sustained or gusting above a threshold, often 90 to 100 km/h) would qualify the resulting damage as a covered event in the same way a summer thunderstorm would. The challenge with Chinook events is that they can occur multiple times per winter. Having local weather data (Environment Canada records specific hourly wind speeds for Calgary and Edmonton) is the most reliable way to document the event for an insurer.

It depends on the season and weather exposure. In summer, synthetic underlayment exposed to UV degrades measurably within weeks. In rain season, exposed underlayment allows water to reach the decking with every precipitation event. In winter, exposed gaps allow wind-driven snow and ice to accumulate in the roof system. There’s no safe delay window. A few days to a week is manageable if rain isn’t imminent, but a month is not. If it’ll be more than a week before a proper repair can happen, professional emergency tarping is worth doing in the interim.

It depends on your policy. Some Alberta policies include a resilient material endorsement that pays the additional cost to upgrade to Class 4 impact-resistant shingles after a covered claim. This is worth checking with your broker before the repair is completed, because the endorsement only pays if you specifically request the upgrade at claim time. Even without an endorsement, the additional cost between standard architectural shingles and IKO Nordic (Class 4) is often modest relative to the total claim value, and the wind resistance improvement (to 210 km/h rated) is significant on a Prairie roof. We’ll walk you through the numbers.