Hail Damage To A Metal Roof


Wondering how hail can damage your metal roof? The truth is that hail can affect a metal roof in several ways. 

There is no roofing material that lasts forever, and hail damage can lead to more problems that develop over time. Hailstones large enough to dent your metal roof can also lead to cracks in the finish or coating that can allow water to seep through. 

Water seepage can lead to rust eating away at your roof over time. If your roof is rusting out in places you can’t see, you’re at risk for the next storm breaking through the weakened structure. This damage can occur even if you don’t notice any leaks.

Types of Hail Damage to a Metal Roof

Most metal material types like steel or aluminum, used in metal roofing systems can be warped due to damage. When looking at how a metal roof can be damaged with hail, there are two main differences:


If hail has caused a dent to form on your metal roof, most often is a cosmetic issue that will not cause the roof to fail or need an extensive repair. Dents in your metal roof does not require any fixes to be done to the structural part of the roof and is the better scenario when compared to a punctured roof system.


A roof that was punctured by hail can cause a roof to leak or potentially fail. Hail is more likely to cause dents then to puncture your metal roof this is mainly due to the fact that most hailstorms are smaller, however, in areas that is is more common to have heavier hailstorms, it is possible that hail could puncture the metal roof and cause a much bigger issue.


Factors of Hail Damage to a Metal Roof


Hail and how much damage it does to a metal roof, it depends on several factors.

Size of the Hail

A lot of the damage is determined by the size of the hail that the roof has to protect itself from. If your project is in a location such as Texas that is susceptible to large size hailstones, and in most cases, this size of hail are often to cause damage at some kind of level. It really just depends on the strength of the storm and the other factors below.

Thickness of the Metal

Thickness of the material of the metal roof is also a factor that can affect the severity of the damage to a metal roof. The thicker the steel metal, the lower the gage is, so a 22-gauge roofing system will be less likely to receive damage than a 26- or 29-gauge metal roof. However, aluminum coil is purchased by the decimal of thickness, and the higher the decimal the thicker the substrate.

Roof Slope

When hail damage occurs, it is similar to a way a car receives hail damage, it follows the shape of the care. The slope of the roof metal roof or wall structure is the same as the car. As it applies to hail, a lower sloped roof has more of a chance to get damaged from the hailstones than a roof that has a steeper slope. A sharper angled roof is likely to deflect more of the hail and cause less damage.