Class 3 vs Class 4 Shingles Wind Rating for Home Insurance
Class 4 shingles resist impact better and may lower your premium. Wind rating is a separate, state-specific test.
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Why the roof matters here
If your non-renewal mentioned roof age or condition, the insurer was pricing hail and wind risk. Class 4 shingles resist impact from hail. That can mean a lower premium or easier approval, but your state may test wind separately from impact.
A separate wind test
Class 4 is an impact rating, usually against hail. Wind resistance for shingles is measured on its own scale, often a UL or ASTM wind classification. Your declarations page or roof inspection report should list both if either was used to set your rate.
What the new insurer asks
When you reapply after a cancellation, the new insurer may ask for the shingle's impact class and wind rating. These are usually on the manufacturer's label or the original roofing invoice. Without that paperwork, they may assume the lowest rating and price accordingly.
Replace now or wait
If age or wear caused the letter, installing Class 4 shingles at replacement time can help with approval and cost on the next policy. If the roof is sound but just old, ask whether an inspection showing good condition is enough on its own.
What your roof is costing you
A non-renewal tied to roof age or condition won't fix itself on the next policy. Comparing quotes shows whether your current shingles, impact class, and wind rating are pricing you higher than they should.
How insurers find out what's on your roof
An insurer doesn't send someone to climb up and check every shingle before quoting you. Most pull roof condition from aerial imagery, permit records, and the age of the house. If the application moves forward, an inspection or underwriting review confirms the details. If your paperwork doesn't show an impact class or wind rating, the insurer has no reason to assume the better product is installed. They'll often price the roof as if it's the minimum, which can mean a higher premium or a harder approval.
Documentation matters more than people expect here. A roofing invoice that lists the shingle brand and product line lets the insurer look up its rating from the manufacturer's testing data. A certificate of inspection from a licensed roofer, dated near your application, carries weight too. Keep these with your policy records instead of a drawer somewhere. You'll likely need them again at your next renewal, and insurers don't always keep a copy on file for you.
If you're replacing the roof because of the non-renewal, ask your roofer for product literature or a spec sheet at the time of installation. Don't wait months and try to track it down later. Some manufacturers also offer a letter confirming class and rating for a specific shingle lot. That's useful if the original packaging and paperwork are long gone by the time a new insurer asks for proof.
Not every state recognizes Class 4 or wind-rated shingles with a pricing difference, and not every insurer in a state treats it the same way. Some weigh it heavily in hail-prone areas and barely consider it where wind drives most losses. A coastal insurer may care far more about the wind rating than the impact class, while an insurer inland may barely ask about wind at all. Asking a few insurers directly how they treat shingle class, rather than assuming it helps everywhere, saves time when trying to get back into coverage quickly. It also tells you whether the roof you're about to pay for will actually move your price.
Does the rating affect anything besides price
A higher impact class or wind rating doesn't just affect what you pay. It can change what the insurer requires of you. Some policies offer a lower wind or hail deductible when the roof carries a Class 4 rating, instead of a flat discount on the premium. Others leave the deductible alone and adjust the base rate. Your declarations page will show which approach applies, and it's worth asking directly if quotes don't make it clear.
Roof rating can also affect how a future claim gets paid out. Some policies pay full replacement cost for a wind or hail damaged roof. Others shift to actual cash value as the roof ages, which accounts for wear and pays less. A few insurers tie the switch to the roof's age rather than its rating, so a newer Class 4 roof might keep full replacement cost longer than an older one would, even at the same rating. This is something to ask about plainly rather than guess.
If you're comparing insurers after a non-renewal, ask each one the same three questions. Whether they recognize impact class at all. Whether wind rating is priced separately or bundled with impact. And whether the payout on a future roof claim depends on the roof's age, its rating, or both. The answers won't be the same across insurers, and a policy that costs slightly more upfront can pay out better later if the roof is damaged.
None of this replaces the paperwork. Even an insurer that values shingle rating highly can't price for it without proof. If the roofing invoice or inspection report is missing the product name or class, ask the roofer who installed it, or look up the shingle by brand and color on the manufacturer's site. Most list impact and wind ratings by product line, and that's often enough to settle the question without more inspection delays.
Before you request quotes
Find your shingle's impact class and wind rating, usually on the roofing invoice or manufacturer label, and check your declarations page for the roof's listed age and condition before comparing new coverage.
