Class 4 impact-resistant shingles cost about 10% to 25% more than standard asphalt shingles, but they are designed to withstand a 2-inch hail impact under UL 2218 testing and can last 30 years or more with proper installation and maintenance. They may also qualify for homeowner’s insurance discounts ranging from 5% to 35%, depending on the provider and policy. For homeowners in Albuquerque, Santa Fe, and throughout Northern New Mexico, the added cost may pay for itself through fewer repairs, a longer roof life, and potential insurance savings. Contact Fiddler Roofing at 505-208-0808 for a free roof inspection.
Considering a roof replacement? Schedule a free roof inspection to see if Class 4 impact-resistant shingles are the right choice for your home.
What Are Impact-Resistant Shingles and How Are They Rated?
In short: Class 4 is the highest impact-resistance rating available for asphalt shingles. It means the shingle withstood a 2-inch steel ball dropped from 20 feet without cracking or tearing under the UL 2218 test.
Impact-resistant shingles are asphalt shingles designed to handle harder impacts than standard shingles. Many Class 4 shingles are made with SBS (styrene-butadiene-styrene) polymer-modified asphalt. This rubber-like material makes shingles more flexible, helping absorb impacts without cracking.
The main rating system is UL 2218, the industry standard for testing the impact resistance of roofing materials. During the test, a steel ball is dropped onto the shingle surface at specific heights. Shingles that show no cracking or tearing after the Class 4 test earn the highest impact-resistance rating.
UL 2218 includes four impact-resistance classifications:
- Class 1: 1.25-inch steel ball dropped from 12 feet
- Class 2: 1.5-inch steel ball dropped from 15 feet
- Class 3: 1.75-inch steel ball dropped from 17 feet
- Class 4: 2-inch steel ball dropped from 20 feet
The Insurance Institute for Business & Home Safety (IBHS) also tests impact-resistant shingles using laboratory-manufactured hailstones, providing performance data that more closely reflects real hailstorms. In 2025, IBHS rated impact-resistant shingles across 24 products representing about 95% of the impact-resistant shingle market.
If you’re comparing materials for a new roof, Fiddler Roofing offers shingle roofing options designed for New Mexico’s climate, including impact-resistant products for pitched roofs.
Class 3 vs. Class 4 Shingles: What’s the Difference?
In short: Class 4 shingles withstand larger hail impacts than Class 3 shingles and are more likely to qualify for insurance discounts. The cost difference is often modest compared with the added protection.
The difference between Class 3 and Class 4 shingles comes down to impact severity. Class 3 shingles withstand a 1.75-inch steel ball dropped from 17 feet. Class 4 shingles withstand a 2-inch steel ball dropped from 20 feet. That difference in ball size and drop height translates to meaningfully better resistance to larger hail impacts.
Both ratings are impact resistant, but Class 4 meets the highest tested level, which matters during New Mexico’s spring and summer hailstorms.
Class 4 shingles are also more likely to use SBS-modified asphalt. That rubberized asphalt can help the shingle stay flexible during hot Albuquerque summers, cold Santa Fe mornings, and daily freeze-thaw cycles in Los Alamos, Taos, and other higher-elevation communities. Class 3 shingles may or may not use the same SBS-modified technology, depending on the manufacturer and product line.
Some insurance companies only recognize Class 4 roofing for premium discounts. Before choosing between Class 3 and Class 4 shingles, ask your insurance agent what rating qualifies under your policy. You can also learn more about how impact-resistant shingles are rated before comparing product options.
Why Class 4 Shingles Make Sense for New Mexico Homeowners
In short: New Mexico’s combination of frequent hail, intense UV exposure at higher elevations, daily temperature swings, and monsoon storms makes Class 4 shingles a practical option for homeowners who want fewer repairs and a longer-lasting roof.
Class 4 shingles make sense in New Mexico because local roofs deal with more than rain. Albuquerque and the I-25 corridor regularly see spring and summer hailstorms that can bruise shingles, knock off granules, and shorten roof life. For homeowners looking for the best shingles for hail protection, impact-resistant products are one of the strongest options available.
Sun exposure is another factor. Many New Mexico homes sit around 6,000 feet above sea level or higher, where UV exposure is stronger than at lower elevations. UV can dry out standard asphalt shingles over time, making them more brittle. SBS-modified Class 4 shingles are built to stay more flexible, which can help resist UV breakdown, reduce cracking, and minimize granule loss.
Freeze-thaw cycles are another challenge for New Mexico roofs. Communities such as Santa Fe, Los Alamos, Española, Taos, and Rio Rancho experience major day-to-night temperature swings. A roof that expands and contracts repeatedly needs shingles that can flex without splitting.
During monsoon season, wind-driven debris and sudden storms can also stress a roof. Some Class 4 shingles carry wind ratings up to 130 mph, depending on the product and installation method. Some products also include reflective granules that can help reduce heat absorption and cooling costs during New Mexico summers.
If your roof has already been through a storm, Fiddler Roofing provides hail damage roof repair and inspections for pitched shingle roofs.
Insurance Discounts for Impact-Resistant Roofs in New Mexico
In short: Homeowners who install Class 4 shingles may qualify for insurance premium discounts. Check with your provider before a roof replacement so you can compare the upgrade cost with the potential savings.
Many insurance providers offer discounts for Class 4 impact-resistant roofs, but the amount varies by provider, policy, and location. Published ranges often fall between 5% and 35%, but no discount is automatic. If you’re hoping to receive an impact resistant roof discount, verify your eligibility with your insurance provider before replacing your roof.
Before scheduling a roof replacement, contact your insurance agent and ask for the discount details in writing. Ask what rating and documentation your policy requires. This helps you calculate your return on investment.
A simple return-on-investment example can help. If a Class 4 upgrade costs $1,500 to $2,500 more and your insurance savings are $200 to $400 per year, the upgrade may pay for itself in about 4 to 8 years. Actual costs vary based on roof size, pitch, material, and current roof condition.
Fiddler Roofing can provide documentation for discount applications and help with insurance claims assistance after storm damage. Call Fiddler Roofing at 505-208-0808 for help with inspection records and shingle documentation.
Cost Comparison: Class 4 vs. Standard Asphalt Shingles
Class 4 shingles usually cost 10% to 25% more in materials than standard architectural shingles. For an average home, that often means about $1,500 to $3,000 more in material cost, though the final number depends on roof size, pitch, product choice, and existing roof condition.
Installation costs are often similar because Class 4 shingles are installed much like standard asphalt shingles. Some products are slightly heavier, but the installation process is otherwise the same.
The added cost is often offset by several long-term benefits. Class 4 shingles may last 30 years or more with proper installation and maintenance, compared with about 20 to 25 years for many standard architectural shingles. They may also reduce storm-related repairs and qualify for insurance savings, depending on your provider and policy.
If you are already planning a roof replacement, upgrading to Class 4 shingles is often easier to justify than replacing an otherwise functional roof solely for the upgrade. Fiddler Roofing also offers roofing financing options through Nusenda Credit Union for homeowners who want to spread costs over time.
Frequently Asked Questions
Are impact-resistant shingles worth the extra cost?
Yes, for most homeowners in hail-prone areas, impact resistant shingles are worth the extra cost. They can last longer, reduce storm repair needs, and may qualify for insurance discounts. The return is usually stronger if you plan to stay in the home for several years.
How can you tell if your shingles are impact resistant?
Look for the UL 2218 Class 4 marking on the shingle packaging or cellophane backing. If the roof is already installed, check your contractor paperwork or contact the manufacturer. Fiddler Roofing can also identify your shingle type during a free roof inspection.
How long do Class 4 shingles last?
Most Class 4 shingles can last 30 years or more with proper installation and maintenance. Standard architectural shingles often last about 20 to 25 years. Lifespan depends on installation quality, climate, maintenance, and roof ventilation. Many also include manufacturer’s limited warranties of up to 50 years, though terms vary by product.
Are standard architectural shingles impact resistant?
Standard architectural shingles offer some impact resistance, but most are not rated Class 4. Many standard shingles fall into Class 1 or Class 2, which means they handle smaller impacts but may crack or tear under larger hail. Class 4 protection requires shingles specifically engineered and tested to meet the UL 2218 Class 4 standard.
Do Class 4 shingles qualify for insurance discounts in New Mexico?
Many New Mexico insurance providers offer discounts for homes with Class 4 impact-resistant roofs. Discount amounts vary by provider and policy. Contact your insurance agent before scheduling a roof replacement to confirm eligibility, documentation requirements, and potential savings for your specific home.
Do impact-resistant shingles look different from regular shingles?
No. Class 4 shingles are available in many of the same colors, profiles, and styles as standard architectural shingles. The impact resistance comes from the shingle’s internal construction, such as SBS-modified asphalt or reinforced backing, not from a visibly different roof design. Major manufacturers, including GAF, CertainTeed, and Owens Corning, all offer Class 4 shingles in many architectural styles.
If you are considering a roof replacement or want to know whether Class 4 shingles are the right fit for your home, Fiddler Roofing offers free roof inspections throughout Northern New Mexico, including Santa Fe, Albuquerque, Los Alamos, and Rio Rancho. Call 505-208-0808 to schedule yours.
