Class 4 Impact Resistant Shingles for Colorado Homes

Class 4 is the highest impact resistance rating under the UL 2218 testing standard. During the test, a two-inch steel ball is dropped from 20 feet onto the shingle. To earn a Class 4 rating, the shingle must show no cracking, splitting, or fracturing after repeated impacts. It’s the gold standard for hail prone regions like Colorado.

Many Colorado homeowners save up to 28% on their homeowner’s insurance premiums after installing a Class 4 impact resistant roof. Savings vary by insurance carrier and policy. We recommend contacting your insurance company for a specific quote based on your policy.

Yes. Colorado Revised Statutes (CRS 10-4-110.8) requires insurance companies operating in Colorado to offer premium discounts or credits for roofs constructed with impact resistant materials that meet the UL 2218 Class 4 standard.

All four major manufacturers produce excellent Class 4 shingles. GAF Timberline AS II, Owens Corning Duration FLEX, Malarkey Vista AR, and CertainTeed Presidential Impact each have strengths. Because Gates Enterprises holds the highest certification from all four, we can recommend the best option for your specific situation without brand bias.

In many cases, yes. Your insurance company covers the cost of a like-for-like replacement. The upgrade cost to impact resistant shingles is often modest, and the long-term insurance premium savings typically offset the difference within a few years.

Most Class 4 impact resistant shingles carry lifetime limited warranties from the manufacturer. The enhanced polymers and rubberized asphalt used in impact resistant shingles generally extend the functional life of the roof compared to standard architectural shingles.

No. Modern impact resistant shingles are virtually indistinguishable from standard architectural shingles. They come in the same colors, profiles, and styles. The CertainTeed Presidential Impact actually offers a premium luxury appearance that mimics natural slate.