The Best Greenhouse for Hail

Why Choosing the Best Greenhouse for Hail Matters

According to the Insurance Information Institute, which references data from the National Oceanic and Atmospheric Administration’s Storm Events Database, the United States recorded 5,373 hail events in 2024 with hail one inch in diameter or larger. Hail is one of the most frequent and damaging weather events, making it crucial to choose the best greenhouse for hail to protect your plants and long term investment.

Whether you live in the Rockies, the Plains, or the Midwest, hailstorms can strike suddenly and cause severe damage to gardens and greenhouses. Fortunately, Growing Dome Greenhouses are engineered to withstand extreme weather and protect your plants from hail and high winds.

Hail Resistant Polycarbonate Glazing

Traditional greenhouses often use glass, fiberglass, or thin plastic film coverings, which can shatter or tear under impact. Growing Dome Greenhouses are built differently. They use high impact 5-wall polycarbonate glazing, offering superior strength, insulation, and light diffusion.

According to A&C Plastics, “multiwall co-extruded thermoglazing has a high impact resistance, 200 times greater than glass and 10 times greater than acrylic.” Every Growing Dome includes 16 millimeter 5-wall polycarbonate panels, ensuring long term performance in both hot and cold climates.

This makes polycarbonate one of the best materials for greenhouse hail protection, providing strength, durability, and energy efficiency that outlasts traditional coverings.

Proven Performance in Real Weather

Growing Dome owners throughout the country have experienced how durable their structures are during real storms. Claudia Stover, a double Dome owner living at nearly 8,000 feet in Colorado’s Rocky Mountains, faces unpredictable weather and frequent hailstorms.

"I never worry about hail or violent storm activity on my domes. They are actually a great spot to tuck into during a quick-rising storm. Love these domes."

Reports like Claudia’s show a consistent pattern of reliability and strength where standard greenhouses often fail.

What Happens If You Do Get Hail Damage

Even the most durable greenhouse materials can experience damage from exceptionally large or fast moving hail. undefined manufactures the polycarbonate panels used on Growing Domes and provides a 10 year limited warranty against excessive weathering and hail impact when properly installed and maintained.

How the Gallina Warranty Works

• Coverage: The warranty applies to Gallina Policarb® multiwall sheets and ArcoPlus® modular panels that are at least 6 millimeters thick when correctly installed, handled, and maintained.
• Hail Impact Test: Warranty coverage is based on a test in which a 20 millimeter diameter sphere strikes the sheet at 21 meters per second without breakage.
• Pro-Rated Replacement: If damage is covered, Gallina provides replacement material at a declining rate. It covers 100 percent up to year five, then 75 percent in year six, 60 percent in year seven, 45 percent in year eight, 30 percent in year nine, and 15 percent in year ten.
• Exclusions: The warranty does not cover installation labor, shipping, or damages caused by vandalism, misuse, or improper installation.
• Claim Process: Claims must be submitted to Gallina within ten days of discovering the defect and should include documentation such as the invoice, product identification, warranty certificate, and photos. Gallina may request an inspection or a sample of the material before approval.

If a storm causes damage beyond warranty limits, replacement panels are available for purchase directly from Growing Spaces. Having access to replacement parts allows you to repair quickly and return to growing without a long delay.

It is also a good idea to include your greenhouse in your homeowners or property insurance policy. This provides additional protection and peace of mind for severe weather events that fall outside the manufacturer’s warranty.

With Gallina’s warranty, available replacement panels, and proper insurance coverage, you can feel confident that your investment and your plants are well protected.

Why Growing Domes Are Among the Best Greenhouses for Hail

When comparing greenhouse types, it is easy to see why so many gardeners consider the Growing Dome the best greenhouse for hail-prone regions. Its combination of geodesic structure, durable glazing, and energy-efficient design provides long-lasting protection and peace of mind.

If you live in an area that experiences frequent hailstorms, investing in a greenhouse built for severe weather can make all the difference. When the next storm arrives, your plants will stay safe and your garden will continue to thrive.