Quick Answer
Hail around one inch (quarter size) and smaller rarely damages a quality metal roof. Hail from about 1.5 to 2 inches (ping pong to egg size) can leave visible dents, especially on thinner panels. Hail 2 inches and larger can dent most panels and may damage trim, flashing, and vents. Panel thickness, wind speed, and roof style change the outcome as much as stone size.
Hail Size Reference
Weather reports often describe hail by comparing it to everyday objects. Here is a simple guide to what each size usually means for a metal roof.
- Pea to marble size (under 3/4 inch): typically no damage
- Quarter size (about 1 inch): usually no damage to quality panels
- Ping pong to golf ball size (1.5 to 1.75 inches): possible dents on thinner metal
- Egg size and larger (2 inches and up): dents likely; check trim, vents, and flashing
Other Factors That Matter
Panel thickness is one of the biggest factors. Thicker panels (24 gauge versus 29 gauge, for example) resist denting much better.
Wind-driven hail hits harder and at an angle, which can increase damage. Hard, dense hailstones also do more harm than slushy ones, and older roofs with worn coatings may show more marks.
Roof style matters too. Ribbed and textured profiles disguise small dents, and stone-coated steel is designed to absorb impacts.
What to Check After a Storm
Even when panels look fine from the ground, check the parts of the roof that are softer than the panels: ridge caps, gable trim, vent caps, skylights, and gutters.
Look around your property too. Dented gutters, damaged AC fins, and marks on outdoor furniture help show how severe the hail was.
Documenting Hail Size for Your Claim
If you can do so safely after the storm ends, photograph a few of the largest hailstones next to a ruler, coin, or other object for scale. Note the date and time. That information helps your roofer and your insurance adjuster connect damage to a specific storm.
Local weather reports and storm records can also confirm hail size in your area. Combined with photos of dented gutters, vents, and outdoor items, this builds a clear record of what your roof went through.
Get a Professional Look
It is hard and unsafe to judge hail damage from a ladder. A roofer can tell cosmetic marks from damage that affects the roof's performance and document it properly for insurance.
Call Sanchez Metal Roofing for a free post-storm inspection anywhere in the San Antonio area.
Frequently Asked Questions
Can quarter-size hail damage a metal roof?
It is uncommon. Quality metal panels usually withstand hail around one inch without damage.
Does wind make hail damage worse?
Yes. Wind-driven hail strikes harder and at angles, which can increase denting and damage to trim and vents.
What metal roof is best for large hail?
Thicker-gauge panels, stone-coated steel, and Class 4 impact-rated systems offer the most protection.
Contact Sanchez Metal Roofing
Phone: (210) 708-3308. Email: sanchezmetalroofing123@gmail.com. Address: 520 Fredericksburg Rd, San Antonio, TX 78201. Hours: Monday through Saturday 8:00 AM to 5:00 PM. Free roof inspections across San Antonio. Call (210) 708-3308.