What Causes Hail — and Why It Can Seriously Damage Your Home
After a storm rolls through and leaves hail behind, it’s easy to think of it as just frozen rain. In reality, hail is one of the most damaging types of weather for homes, especially across Southeast Texas.
What Causes Hail?
Hail forms inside strong thunderstorms known as cumulonimbus clouds. These storms contain powerful updrafts that lift raindrops high into the atmosphere, where temperatures drop below freezing.
As the droplets rise, they freeze into small ice pellets. Strong winds inside the storm can carry those pellets up and down multiple times, allowing them to collect additional layers of ice. This process continues until the hailstone becomes too heavy for the storm’s updraft to support, causing it to fall to the ground.
The stronger the storm, the larger the hailstones can become. In Texas, it’s not uncommon to see hail ranging from pea-sized to golf ball or even baseball-sized during severe weather events.
Why Hail Is So Damaging
Hail causes damage because of both its size and the speed at which it falls. Even small hailstones can strike surfaces with significant force, while larger hail can create impact conditions comparable to high-speed projectiles. One of the most common areas of damage is roofing. Hail can knock off the protective granules on asphalt shingles, which are critical for shielding the roof from sun exposure and water intrusion. It can also create soft spots, or “bruising,” that weaken the structure of the shingle without immediately causing visible leaks.
In many cases, this type of damage is not obvious right away. A roof may appear intact after a storm, but underlying damage can lead to leaks or deterioration over time.
Hail can also affect other parts of a property, including gutters, siding, windows, and outdoor equipment. Vehicles left outside during a storm are especially vulnerable to denting.
Does Size Matter?
The size of hailstones plays a major role in the level of damage they can cause.
Pea-sized hail typically results in minimal impact. Marble-sized hail can begin to wear down roofing materials. Golf ball-sized hail often leads to noticeable roof damage, while baseball-sized hail can cause severe structural issues. Wind also plays a factor. Smaller hail driven by strong winds can strike surfaces at angles that increase the likelihood of damage.
What Homeowners Should Do After a Hailstorm
After a hailstorm, homeowners should take a few practical steps.
Start by looking for visible signs of damage, such as dents in gutters or marks on outdoor surfaces. These can be indicators that the roof may have been impacted as well. It’s important not to assume that a lack of leaks means there is no damage. Many hail-related issues develop gradually.
If there is any uncertainty, a professional inspection can help determine whether repairs are needed. At the same time, homeowners should take care not to rush into decisions or feel pressured into unnecessary work.
Final Thoughts
Hail damage is often cumulative. A single storm may not cause immediate problems, but repeated exposure over time can significantly reduce the lifespan of a roof.
Understanding how hail forms and how it affects your home can help you make informed decisions after a storm and avoid costly surprises down the road.