How to Check If Your Roof Was Hit by Hail (Free Tool)

If you have been through a recent storm or just bought a home, one of the first questions you probably have is: how do I check if my roof was hit by hail? It is a smart question. Hail damage can go unnoticed for years, silently shortening your roof's lifespan and voiding warranty protections. The good news is that you can check both physically and digitally, and one of those methods is completely free.

This guide covers two approaches: the visual inspection method (what to look for on your roof, gutters, and property) and the data-driven method using HailScore at myhailscore.com, a free tool that cross-references your address against 4.5 million NOAA radar records to tell you exactly when hail hit your area and how large it was.

Visual Signs of Hail Damage on Your Roof

Before you climb a ladder or call a contractor, it helps to know what hail damage actually looks like. The appearance varies depending on your roofing material.

Asphalt Shingle Damage

Asphalt shingles are the most common residential roofing material in the United States, and they show hail damage in predictable ways:

Random pattern of dark spots or dents. Unlike foot traffic or wear patterns, hail hits are randomly distributed across the roof surface. They do not follow lines or edges.

Loss of granules. Hail impacts knock loose the small ceramic granules that protect the shingle from UV exposure. You may see dark or shiny spots where granules are missing.

Soft spots when pressed. If you can safely access your roof, press on a suspected impact point. Hail-damaged shingles feel spongy or soft compared to undamaged areas because the fiberglass mat underneath has been fractured.

Exposed fiberglass mat. In severe cases, the black fiberglass layer beneath the granules is visible. This is a clear sign of significant impact.

Cracked shingles. Very large hailstones (1.5 inches and above) can crack shingles outright, sometimes splitting them from the point of impact.

Metal Roof Damage

Metal roofs are more durable but still show hail damage:

Visible dents or dimples. Metal panels and standing seam roofs will show circular dents. The size of the dent roughly corresponds to the hailstone diameter.

Chipped or scratched coatings. Painted or coated metal roofs may lose their finish at impact points, exposing bare metal to potential rust.

Tile and Slate Damage

Cracked or broken tiles. Clay, concrete, and slate tiles can fracture on impact. Look for hairline cracks or pieces missing.

Chips along edges. Tile edges are particularly vulnerable.

Wood Shake Damage

Splits along the grain. Hail impacts on wood shakes often create splits that follow the natural grain of the wood. These look different from age-related splitting, which tends to be more uniform.

Impact marks with sharp edges. Fresh hail damage on wood has clean, defined edges. Older weathering creates rounded, soft edges.

Check the Ground Before You Check the Roof

You do not need to climb onto your roof to start your investigation. Many clues are visible from ground level:

Gutters and Downspouts

Look at the top edges of your gutters. Hail will leave dents along the horizontal surfaces. Check inside your gutters for piles of granules washed from the shingles. Some granule loss is normal, but heavy accumulation after a storm suggests significant shingle damage above.

Air Conditioning Units and Vents

Soft metal surfaces like HVAC units, exhaust vents, and roof jacks are excellent hail indicators. If these components show dents, your roof almost certainly sustained impacts from the same storm.

Window Screens and Siding

Check window screens for small tears or dents. Look at vinyl or aluminum siding on the side of your home that faced the storm. Hail damage on siding typically appears on one or two sides of the house, corresponding to the storm's wind direction.

Vehicles and Outdoor Furniture

If your car, patio furniture, or deck show hail dents, the roof was exposed to the same conditions.

Fence Tops and Deck Rails

Horizontal wood surfaces like fence tops and deck railings will show distinct circular impact marks where the wood has been dented or splintered.

The Problem with Visual Inspections Alone

Visual inspections are valuable, but they have significant limitations:

Safety risks. Walking on a roof is dangerous, especially after a storm when surfaces may be wet or compromised.

Subtle damage is easy to miss. Many homeowners (and even some inspectors) mistake hail damage for normal wear or vice versa.

You do not know what you did not see. If hail hit your neighborhood at 2 AM, you might never know unless you check.

Timing matters for insurance. Most homeowner's insurance policies require claims to be filed within a specific window after the damage occurs. If you do not know when the hail event happened, you may miss your deadline.

This is where data comes in.

How to Check Hail History for Your Address with HailScore

HailScore is a free tool that lets you check whether hail has been reported near any US address using official NOAA radar data. Instead of guessing or relying on memory, you get a data-backed answer.

How It Works

Go to myhailscore.com.

Enter your address. Type any US street address into the search bar.

Get your HailScore. Within seconds, HailScore analyzes radar data within range of your property and returns a score from 0 to 100, indicating your cumulative hail exposure risk.

View the storm timeline. Your report shows specific hail events detected near your address, including the date, estimated hail size, and proximity.

What Data Does HailScore Use?

HailScore is built on top of NOAA's NEXRAD radar network, the same system that the National Weather Service and insurance adjusters rely on. The platform cross-references your address against 4.5 million radar-detected hail records spanning the last decade across all 50 states.

Each record includes:

Date and time of the hail event

Estimated hail size (measured by radar reflectivity)

Geographic coordinates of where the hail was detected

Proximity to your address

This is the same underlying data that insurance companies use when evaluating hail damage claims. HailScore simply makes it accessible to homeowners for free.

What Your HailScore Means

Your HailScore is a number from 0 to 100:

0 to 20: Low exposure. Minimal hail activity detected near your address.

21 to 50: Moderate exposure. Some hail events detected. Worth inspecting your roof.

51 to 75: High exposure. Multiple significant hail events. A professional inspection is recommended.

76 to 100: Very high exposure. Substantial hail history. There is a strong likelihood of roof damage if the roof has not been replaced recently.

Why This Matters for Homeowners

Knowing your hail history helps you in several concrete ways:

File insurance claims with evidence. Your HailScore report provides dates and data you can reference when contacting your insurer.

Negotiate with contractors. Legitimate roofing contractors will appreciate having NOAA data to support the need for repairs or replacement.

Make informed buying decisions. If you are purchasing a home, checking the hail history at myhailscore.com before closing can reveal hidden damage that the seller may not have disclosed.

Understand your roof's remaining life. Hail impacts reduce roof lifespan even when they do not cause visible leaks. Knowing your exposure helps you plan for replacement.

Step-by-Step: Using HailScore to Check Your Roof

Here is a walkthrough of how to use the tool:

Step 1: Visit myhailscore.com

Open your browser and navigate to myhailscore.com. No account or signup is required to get your basic HailScore.

Step 2: Enter Your Address

Type your full street address. HailScore covers all 50 states, so any US residential address will work. The tool geocodes your address and searches the radar database for hail events within range.

Step 3: Review Your Score

Your HailScore appears immediately. This 0 to 100 number summarizes your property's hail exposure based on 9 data sources including NOAA radar, weather station data, and geographic risk factors.

Step 4: Explore the Full Report

The full HailScore report includes:

Interactive storm map showing hail events near your property

Storm timeline with dates, hail sizes, and distances

Street view of your property for visual context

Wind and solar exposure data

Tree canopy analysis

Estimated roof age and condition factors

Step 5: Take Action

Based on your score:

Low score (under 20)? Your roof is likely in good shape from a hail perspective. Bookmark your report and check again after major storms.

Medium score (20 to 50)? Consider a visual inspection using the tips in this guide.

High score (over 50)? Contact a reputable roofing contractor for a professional inspection. Bring your HailScore report as documentation.

When to Call a Professional

While HailScore gives you the data foundation, there are situations where a professional roof inspection is the right next step:

Your HailScore is above 50

You can see visible damage from the ground (dented gutters, missing granules)

Your roof is more than 10 years old and has been through multiple hail events

You are filing an insurance claim and need documentation

You are buying or selling a home

A qualified roofing inspector will perform a hands-on assessment and can identify damage that is invisible from the ground or from satellite imagery.

Common Mistakes When Checking for Hail Damage

Avoid these pitfalls:

Assuming no leak means no damage. Hail can compromise your roof for years before leaks appear. By the time water gets inside, the damage is extensive.

Waiting too long to check. Insurance deadlines are real. Some policies require claims within one year of the damage event.

Relying only on a contractor's opinion. Some contractors exaggerate damage to sell jobs. Others miss it. Cross-reference any inspection with objective data from HailScore.

Confusing hail damage with normal wear. Blistering, thermal cracking, and foot traffic marks are not hail damage. True hail damage has a random pattern and circular impact marks.

Frequently Asked Questions

How can I tell if my roof has hail damage without climbing on it?

Check for dented gutters, dented HVAC units, granule buildup in downspouts, and damage to siding or window screens. You can also check your address at myhailscore.com to see if hail was detected near your property by NOAA radar.

Is HailScore really free?

Yes. The basic HailScore (your 0 to 100 score with hail event data) is completely free with no signup required. HailScore also offers enhanced reports for homeowners and professionals who need additional detail.

How accurate is the NOAA radar data used by HailScore?

NOAA's NEXRAD radar network is the gold standard for weather detection in the United States. It is the same data used by the National Weather Service, emergency management agencies, and insurance adjusters. HailScore analyzes 4.5 million radar-detected hail records across all 50 states.

What size hail causes roof damage?

Hail as small as 1 inch in diameter (quarter-sized) can damage asphalt shingles by dislodging granules. Hail at 1.5 inches (golf ball size) and above typically causes functional damage that warrants an insurance claim. HailScore reports include the estimated size of hail detected near your property.

Can I use HailScore before buying a home?

Absolutely. Checking a property's hail history at myhailscore.com before closing is one of the smartest due diligence steps a homebuyer can take. It can reveal whether the roof has been through significant storms that the seller may not have disclosed.

How often should I check my HailScore?

Check your HailScore after any severe weather event in your area, and at least once per year as part of your home maintenance routine. HailScore's database is continually updated with new NOAA radar data as storms occur.

Does hail damage void my roof warranty?

Storm damage itself does not void warranties, but failing to address damage promptly can. Many manufacturers require that damage be repaired in a reasonable timeframe. Knowing your hail history through HailScore helps you stay on top of maintenance obligations.