Impact Resistant Shingles: Do They Lower Insurance

What Makes a Shingle Impact Resistant

Impact resistant shingles are tested and rated under the UL 2218 standard, which measures a material's ability to withstand impacts from steel balls dropped from a specified height. The test simulates hail impact using 1.25-inch, 1.5-inch, 1.75-inch, and 2-inch diameter steel balls dropped from 12 to 20 feet. The rating system has four classes:

Class 1: Withstands a 1.25-inch steel ball dropped from 12 feet. This is a minimal rating that provides marginal improvement over standard shingles.

Class 2: Withstands a 1.5-inch steel ball dropped from 15 feet. Moderate improvement, but most insurance discounts require Class 3 or higher.

Class 3: Withstands a 1.75-inch steel ball dropped from 17 feet. This rating provides solid hail protection and qualifies for insurance discounts in most states.

Class 4: Withstands a 2-inch steel ball dropped from 20 feet, simulating a hailstone roughly the size of a golf ball traveling at terminal velocity. Class 4 is the highest rating and the one that triggers the maximum insurance discounts. This is the rating you want if insurance savings are part of your decision.

Impact resistant shingles achieve their ratings through modified asphalt formulations (SBS rubber-modified asphalt that flexes rather than cracking on impact), reinforced fiberglass mats, and thicker overall construction. The SBS polymer modification is the critical ingredient because standard oxidized asphalt is rigid and shatters on impact, while SBS-modified asphalt absorbs and distributes the impact energy without fracturing.

How Much Insurance Savings to Expect

Insurance discounts for impact resistant roofing vary significantly by state, insurer, and policy structure. The discount is applied to the dwelling coverage portion of your homeowners policy, not the total premium, so the dollar savings depend on your coverage amount and base rate.

Texas: 10 to 28 percent discount on dwelling coverage. Texas has the most generous and widely available impact resistant roof discounts because of the state's extreme hail frequency. On a policy with $2,000 in dwelling coverage premium, that translates to $200 to $560 per year in savings.

Colorado: 10 to 20 percent discount. Colorado's Front Range from Fort Collins to Colorado Springs experiences some of the costliest hail events in the country, and insurers aggressively incentivize impact resistant roofing in this corridor.

Kansas, Nebraska, Oklahoma: 10 to 20 percent discounts. These tornado alley states combine hail frequency with relatively affordable insurance rates, so the percentage discount may translate to more modest dollar savings of $150 to $400 per year.

Minnesota, the Dakotas, Iowa: 5 to 15 percent discounts. Summer hail is common but less severe than in the southern Plains states, so discounts are available but generally smaller.

States without mandatory discounts: Many states do not require insurers to offer impact resistant roof discounts. In these states, discounts may be available from individual insurers on a voluntary basis, or they may not exist at all. Always ask your specific insurer before assuming a discount will be available.

Cost of Impact Resistant Shingles

Impact resistant (IR) shingles cost $6.50 to $9.00 per square foot installed, compared to $5.00 to $7.50 for standard architectural shingles. The premium for the IR upgrade is $1.00 to $2.00 per square foot, or roughly $2,000 to $4,000 on a typical 2,000 square foot roof.

The payback calculation is straightforward. If your annual insurance savings are $400, and the upgrade cost $3,000, the payback period is 7.5 years. On a 30-year roof, the remaining 22.5 years of savings represent a net benefit of $9,000, making the upgrade highly profitable in states with strong discounts. In states with smaller discounts ($150 per year), the payback stretches to 20 years, making it a break-even proposition at best.

The financial case for IR shingles is strongest in Texas and Colorado, where the combination of high insurance rates, generous discounts, and frequent hail creates the fastest payback periods. It is weakest in states without mandated discounts or with low base insurance rates.

Beyond Shingles: Other Impact Resistant Materials

Asphalt shingles are not the only impact resistant roofing material. Composite polymer shingles from manufacturers like DaVinci and Brava achieve Class 4 ratings through their inherent flexibility. Metal roofing in thicker gauges (24 gauge or heavier standing seam) resists hail impact well, though thinner metal and metal shingles may dent visibly without losing function. Concrete tile can fracture under severe hail impact, while clay tile is brittle and vulnerable to cracking from even moderate hailstones.

If you live in extreme hail country and want the highest possible impact resistance, composite polymer shingles and thick-gauge standing seam metal are the top performers. If you prefer the traditional look and budget of asphalt, Class 4 IR shingles are the clear choice.

Making the Decision

The decision to upgrade to impact resistant shingles should be driven by two questions. First, does your insurer offer a meaningful discount in your state? Call and ask for a specific dollar figure before committing to the upgrade. Second, how frequently does your area experience hail? If you have filed a hail claim in the past 10 years or live in a county with above-average hail frequency, the combination of insurance savings and reduced claim risk makes the upgrade a sound investment.

If your insurer does not offer a discount and your area rarely sees significant hail, the $2,000 to $4,000 premium for IR shingles provides peace of mind but limited financial return. In that case, standard architectural shingles remain the more cost-effective choice.