Ask what size hail damages roofs and you will often hear "about an inch." That is a useful rule of thumb for asphalt shingles, but size alone does not decide it. Wind speed, hailstone density, the age of your roof, the material and even the temperature all change the outcome. Smaller hail can hurt an old roof; bigger hail may barely mark a new one.
Not sure whether last night's storm did anything? Call Cannon Roofing at (940) 627-1045, open 24/7, or send a request through our contact page for a free inspection.
Hail sizes and what they usually mean
Meteorologists compare hail to common objects. These are typical effects on asphalt shingle roofs, not hard rules.
- Pea to dime size: Usually no roof damage on its own, though it can knock loose granules and damage aging roofs, window screens and plants.
- Quarter size, about one inch: The size where damage to shingles often begins, especially on older roofs. Gutters, vents and AC fins commonly show marks.
- Golf ball size: Bruising and fractured shingles are likely. Soft metals dent clearly.
- Tennis ball and larger: Serious damage to most roofing materials, siding, windows and vehicles.
Use this as a starting point, not a verdict. The factors below are what turn a "maybe" into a clear yes or no, and they explain why two roofs hit by the same stones can end up in very different shape.
Why hail size alone does not decide what damages roofs
Wind speed and direction
Wind drives hail sideways and adds speed. A one-inch stone pushed by strong wind hits harder than the same stone falling straight down, and it hits the slope facing the storm much more than the others. That is why one side of a North Texas roof can be badly bruised while the back slope looks untouched.
Hailstone density and shape
Hail ranges from soft and slushy to hard and clear. Dense, hard stones transfer more energy on impact. Jagged stones with spikes concentrate force into a smaller point, which can fracture a shingle mat that a smooth stone would only dent.
Roof age and condition
New shingles are flexible and have full granule cover, so they absorb impact better. Years of Texas sun dry out the asphalt, and older shingles become brittle. A storm that leaves a newer roof in Rhome fine can crack the shingles on a tired roof a few streets over.
Temperature on the day
Asphalt stiffens as it cools. Hail during a cool front can break shingles that would have flexed on a warm afternoon. North Texas hailstorms often arrive with a sharp temperature drop, so shingles can be stiffer than the afternoon heat suggests.
Roofing material
Standard three-tab shingles are the most vulnerable. Architectural shingles do better. Impact-resistant Class 4 shingles are tested to take larger hail. Metal resists penetration but can dent. Tile and slate can crack under heavy hail.
What is underneath
Shingles over solid, well-attached decking hold up better than shingles over soft or rotted wood, which lets them flex and fracture.
Signs hail hit harder than it looked
You do not need to climb up to spot clues. From the ground, look for:
- Dents in gutters, downspouts and metal vents.
- Dinged fins on your outdoor AC unit.
- Split or spattered paint on fences, decks and siding.
- Granules collecting at downspout outlets.
- Torn screens or cracked window glazing.
Collateral damage like this tells an inspector the storm had enough force to affect the roof. Hail and wind damage can look similar to the untrained eye, and our article on telling hail from wind damage explains the differences.
Why two houses on the same street differ
Homeowners in Boyd and Newark often ask why a neighbor got a new roof and they did not, after the same storm. Hail falls in narrow swaths, roofs face different directions, and each roof has its own age, material and install quality. Your neighbor's result is a reason to check, not a verdict on your roof.
When a post-storm roof inspection is worth it
Schedule one if any of these are true:
- You saw hail around an inch or larger at your home.
- Neighbors are getting inspections or new roofs after the same storm.
- You see any of the collateral damage signs above.
- Your roof is older or has not been inspected in several years.
- You notice a new stain on a ceiling or in the attic.
Hail damage to shingles is often invisible from the ground. A bruise under the granules can look like nothing until it starts leaking months later. Our roof inspections check every slope, flashing and vent, then look in the attic, and you receive photos of what we find.
Cannon Roofing has inspected roofs in Decatur, Bridgeport, Springtown and throughout Wise County since 1994. Our inspectors carry the Technician Seal of Safety: background checked, drug tested, factory trained and insured. We will tell you honestly if the storm missed you.
Frequently asked questions
Can pea-sized hail damage a roof?
It rarely damages a sound roof. On an old, brittle roof, especially with strong wind, even small hail can loosen granules and weaken shingles.
How can I tell what size hail fell at my house?
Measure stones right after the storm if safe, photograph them next to a coin, and check dents on soft metals like gutters or vents, which roughly reflect stone size.
Should I file a claim just because hail fell?
Not before an inspection. If there is no damage, a claim wastes time. If there is, photos from the inspection support it.
Wondering whether your roof took a hit? Call Cannon Roofing at (940) 627-1045, day or night, and we will schedule a free inspection and walk you through the photos. You can also reach out on the Cannon Roofing contact page.