3 facts that may cause hail damage on a metal roof

While metal roofs are generally durable and resistant to many types of damage, including hail, severe storms with large hailstones can still cause damage under certain conditions. Here are three factors that may cause hail damage on a metal roof:

1. Hailstone Size and Density: The size and density of hailstones are significant factors in determining the extent of damage they can cause to a metal roof. Larger hailstones, typically measuring one inch or more in diameter, are more likely to cause dents, dings, and other forms of impact damage to the roof surface. Additionally, hailstones with a high density or compacted ice core can exert greater force upon impact, increasing the likelihood of damage to the metal roofing panels.
2. Hailstone Velocity and Angle of Impact: The velocity and angle at which hailstones strike the metal roof surface can also influence the severity of damage. Hailstones that fall at a high velocity or are driven by strong winds can strike the roof with greater force, increasing the likelihood of denting or puncturing the metal panels. Additionally, hailstones that strike the roof at an angle, rather than directly overhead, may cause more significant damage as they slide or roll across the surface, creating a scraping or gouging effect.
3. Roofing Material and Thickness: The type and thickness of the metal roofing material can affect its susceptibility to hail damage. Thicker gauge metal panels are generally more resistant to denting and deformation than thinner gauge panels. Additionally, certain types of metal, such as steel and aluminum, may be more prone to denting than others, such as copper or zinc. Additionally, the protective coatings applied to metal roofing panels can impact their resistance to hail damage. High-quality coatings, such as Kynar or PVDF, offer enhanced durability and resistance to scratches, dents, and corrosion, providing greater protection against hail damage.

In conclusion, while metal roofs are highly durable and resistant to many forms of damage, including hail, severe storms with large hailstones can still cause damage under certain conditions. Factors such as hailstone size and density, velocity and angle of impact, and roofing material and thickness can all influence the likelihood and severity of hail damage on a metal roof. Homeowners in regions prone to hailstorms should consider these factors when selecting metal roofing materials and take proactive measures to minimize the risk of damage, such as choosing thicker gauge panels and high-quality coatings, and ensuring proper installation by a qualified roofing contractor.