Understanding Storm Damage on Calgary Roofs
Calgary has some of Canada's most active hailstorm patterns. The city sits within a corridor known for large hail events, and significant hailstorms occur multiple times each decade — sometimes several in a single season. The combination of hail, high wind, and heavy snow loads creates specific stress patterns on residential roofing systems.
Storm damage is not always immediately obvious. Hail impacts can fracture shingle granules and compromise the waterproofing layer without creating a visible hole. This type of damage typically worsens over subsequent freeze-thaw cycles and may not manifest as an interior leak until months later.
Types of Storm Damage We Address
Hail Damage
Hail impacts create bruising and fractures in asphalt shingles that are often difficult to see from ground level. Impact marks on metal components — vents, flashing, gutters — are more obvious indicators of hail size and coverage. Our assessment documents both visible and functional damage.
Wind Damage
High-wind events lift, crack, and displace shingles — particularly at the ridge, eaves, and corners where wind pressure is highest. Displaced ridge caps are common after strong Calgary chinooks. Wind damage often creates immediate water infiltration risk if shingles are missing or severely displaced.
Snow Load and Ice Dam Damage
Heavy accumulations of snow create significant downward pressure on roof structures. More commonly, the freeze-thaw cycle in Calgary's shoulder seasons creates ice dam conditions at eaves, where backed-up water penetrates beneath shingles and finds its way into the building envelope.
Our Storm Damage Assessment Process
- Site access and safety assessment — We establish safe working conditions before any roof access occurs.
- Systematic surface inspection — We move systematically across the entire roof surface, not just obvious damage areas.
- Photographic documentation — All findings are photographed with reference to roof sections and compass orientation.
- Metal component evaluation — Gutters, vents, and flashing are checked for impact evidence, which helps establish hail size and coverage.
- Written report preparation — A documented report suitable for your own records and, where applicable, for working with your home insurance provider.
Working with Insurance: If you believe storm damage may be covered under your homeowner's insurance policy, we recommend contacting your insurer before repair work begins. Our inspection report documents the nature and extent of damage, which can support your claim. We do not act as insurance adjusters, but we can provide the information needed for your own discussions with your provider.
Safety Considerations
After a significant weather event, we advise against accessing your roof to assess damage yourself. Post-storm roofs can have compromised structural integrity, wet and slippery surfaces, and displaced material that creates fall hazards. A ground-level visual inspection is reasonable, but leave roof access to professionals with appropriate fall-arrest equipment.
After a Storm?
Contact us to schedule a post-storm assessment. Early documentation is useful whether or not you end up making an insurance claim.
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