Class 4 Impact-Resistant
Shingle Insurance
Discount Guide
In Indiana, Illinois, and Michigan's hail corridor, Class 4 UL 2218 shingles qualify homeowners for 18–32% annual insurance premium discounts — recovering the material upgrade cost in 14–22 months and generating $5,000–$8,000 in net savings over 10 years.
Get a Class 4 Estimate📊 Sample ROI — Indianapolis Home
Based on $3,200/yr premium with 25% discount. Actual discounts vary by carrier, home characteristics, and deductible. Confirm with your agent before purchase.
What Is a Class 4 UL 2218 Impact-Resistant Shingle?
The UL 2218 standard is the roofing industry's hail impact resistance rating system. Class 4 is the highest rating — achieved by passing a test that no standard architectural shingle can pass.
🎯 The UL 2218 Test
A 2-inch steel ball is dropped from 20 feet onto a conditioned shingle sample — twice on the same spot. Class 4 shingles show no cracking, tearing, or substrate penetration. Standard architectural shingles typically fail at the Class 1 or Class 2 threshold.
🏅 Four Rating Classes
Class 1 (1-inch ball), Class 2 (1.25-inch), Class 3 (1.5-inch), Class 4 (2-inch). Only Class 3 and Class 4 qualify for most insurance discounts. Class 4 qualifies for the highest discount tier with all participating carriers.
⏱️ Longer Effective Service Life
Class 4 shingles resist the granule loss from hail impacts that shortens standard shingle life from 30 rated years to 18–22 effective years in high-hail markets. Class 4 shingles typically achieve 28–35 years of effective service life in Indiana and Illinois hail corridor conditions.
🔧 Same Installation Process
Class 4 shingles install identically to standard architectural shingles — same tools, same process, same roofing system components. The only difference is the shingle material composition. No structural changes required.
Why the Midwest Hail Corridor Makes Class 4 a Financial Decision
Insurance carriers offer Class 4 discounts because they reduce claim frequency. In markets where the expected frequency of hail events is high, the actuarial value of the discount is substantial enough to be shared with the policyholder.
Indiana I-65 Corridor
Marion & Hamilton County, IN
Illinois Midwest storm corridor
Which Insurance Companies Offer Class 4 Discounts in the Midwest?
Discount availability and percentage vary by carrier, state, and home characteristics. Always confirm with your agent before purchasing — and get the discount confirmation in writing before your contractor orders materials.
Available for qualifying Class 4 installations in Indiana. One of the highest discount tiers in the Midwest market.
Class 3 and Class 4 discounts available in Indiana, Illinois, and Michigan. Discount rate varies by county and home age.
Impact-resistant shingle discount for qualifying Indiana and Illinois policyholders. Confirm discount percentage with your local Pekin agent.
Class 4 discount available across Indiana and Ohio markets. Erie agents can confirm eligibility and document the installed shingle for your file.
Roofing upgrade discounts for impact-resistant shingles in participating states. Confirm Indiana and Illinois market availability with your agent.
Wisconsin and Minnesota markets have available impact-resistant shingle discounts. Confirm with your AmFam agent — discount varies by zip code.
Ready to Find Your Roofing Contractor?
One licensed contractor matched to your ZIP. Free estimate. Zero spam calls.
✓ Licensed contractors only · ✓ Your info goes to one contractor only · ✓ Free for homeowners
How Do You Claim Your Insurance Discount After Class 4 Installation?
Which Class 4 Shingle Brands Are Available in the Midwest?
These are the most commonly specified Class 4 products by FindMeARoofer partner contractors in Indiana, Illinois, and Michigan markets.
Get Matched With a Licensed Roofing Contractor
One pre-vetted local contractor. Free estimate. No spam calls. 60 seconds.
Get Matched Free✓ Licensed & insured · ✓ One match only · ✓ Free for homeowners
Find a Licensed Roofing Contractor Near You
One pre-vetted local contractor. Free estimate. No spam. 60 seconds.
Get Matched FreeHow Do You Get a Class 4 Estimate With an Insurance Discount Assessment?
Your matched contractor confirms your carrier's discount rate, installs the qualifying Class 4 shingles, and provides the Certificate of Installation your carrier needs. Free match.
Get Class 4 Estimate Free