Class 4 impact-resistant shingles are rated to resist impact better than standard shingles. For many Front Range homeowners, they are a practical upgrade to consider when it is time for a new roof.
As an Atlas PRO+ Silver Level contractor, we install Atlas impact-resistant shingles, and we also install impact-rated products from TAMKO and GAF.
Most impact ratings for shingles come from UL 2218. In that test, steel balls of increasing size are dropped onto the roofing. Class 4 is the top rating, earned when the product holds up to a 2-inch steel ball without cracking. Some shingles are also tested under FM 4473, which uses ice balls.
A rating is a lab result for comparing products. Atlas says it directly in its own technical bulletin: the UL 2218 test is for product comparison, and it does not warrant performance against real-life hail. Large hail can still damage a Class 4 roof. What you get is better odds and a tougher shingle.
Atlas publishes Class 4 ratings for these lines on its own data sheets.
A polymer-modified (Core4) laminated shingle rated UL 2218 Class 4 and FM 4473 Class 4, with 3M Scotchgard Protector to resist algae streaks.
The StormMaster series in a slate-style profile, also rated UL 2218 Class 4 per Atlas's technical bulletin.
An architectural shingle made with polymer-modified asphalt, rated UL 2218 Class 4, with Scotchgard Protector and 3M Smog-Reducing Granules.
Color choice, profile and HOA rules all play a part. We bring samples and help you pick the line that fits your home.
We are a GAF Master Elite residential contractor, and we install TAMKO roofing. Each of these manufacturers makes impact-rated shingles, and we are happy to quote them side by side with Atlas so you can compare look, availability and price.
Atlas Pinnacle Impact and StormMaster Shake roofs, plus TAMKO and GAF projects.
Lightweight steel panels with a stone granule finish. Higher cost, and Westlake Royal lists a Class 4 hail rating on the Cottage Shingle we install.
How metal and shingle roofs compare for cost, hail and appearance in Colorado.
A broader look at roofing materials for hail, wind, sun and snow.
No. They resist impact better than standard shingles, but large hail can still damage them. Atlas notes that its lab ratings are for product comparison.
Not really. Atlas StormMaster and Pinnacle Impact look like architectural shingles, and StormMaster Slate gives a slate-style look.
Yes. We can quote Class 4 options side by side with standard shingles so you can see the price difference before you decide.
We will inspect the roof, document what we find and explain your options in plain language. Inspections are free. Call (303) 808-0687 or send us a note through our contact page.
