What is an impact resistant shingle roof?
Short answer. An impact resistant shingle roof is one covered with shingles rated to withstand hail strikes, usually UL 2218 Class 4, installed with matching rated caps and accessories. It looks like a normal architectural shingle roof but is built to resist cracking and bruising from hail, which can reduce storm damage and sometimes insurance premiums.
It is a system, not just a shingle
- Field shingles: Class 4 rated, often SBS modified.
- Hip and ridge caps: also rated, since caps sit on top and take direct hits. A Class 4 field with ordinary caps leaves the ridge as the weak point.
- A solid deck: shingles over soft or delaminated decking bruise more easily, because the deck gives under impact.
- Proper installation: correct nailing and sealing so the rating holds in the field the way it did in the lab.
Benefits for Georgia homeowners
Spring hail is a regular event across North Georgia. An impact resistant roof is more likely to come through moderate hail without functional damage, which can mean fewer claims, fewer deductibles, and less disruption. Some insurers credit Class 4 roofs, and the rating is a talking point when you sell.
What it cannot do
- Stop very large hail from causing damage.
- Keep granules from being knocked loose.
- Protect metal vents, gutters, flashing or skylights, which still dent and crack.
- Guarantee a claim outcome; damage is still judged by the adjuster on the facts.
Keep your proof
Save the contract, invoice, a product wrapper and the warranty registration. Insurers may ask for them to apply a credit, and they help after a storm to show what was installed.
See impact resistant shingles in Georgia and Georgia hail season.