Why Do Hail Storms Cause Skylight Damage?

Hailstones are solid ice projectiles that can reach significant sizes. When they fall from great height, they gain considerable velocity. The kinetic energy upon impact with a skylight is concentrated on a very small point. This force often exceeds the material's strength, leading to immediate fracture.

The angle of impact also matters. A direct, perpendicular hit transfers maximum energy, while a glancing blow might cause less damage. However, repeated strikes during a single storm event can fatigue the material. Even a durable acrylic dome can develop stress cracks that are not immediately visible.

If you suspect hail damage, first check for visible signs from a safe location inside your home. Look for water dripping, new cracks in the glass, or daylight showing through an unexpected gap. Place a bucket or towels under any active leak to minimize water spread.

Avoid going onto the roof yourself, especially if it is wet or steep. Document the damage with clear photos from inside your attic and through windows if possible. This visual record is crucial for discussing repairs with the pros and for any potential insurance claim. Policies vary, and your insurer decides what is covered.

Regular maintenance is your best defense. Inspect skylight seals and flashing annually, ideally during dry weather. Clear debris like leaves and branches from the roof area around the skylight, as it can trap moisture and accelerate wear on the materials.

Consider impact-resistant glazing options if you live in an area prone to severe storms. In climates with significant temperature swings, seals can expand and contract more frequently, which may make them more vulnerable over time. After any major storm, a visual check from the ground is a wise habit.