Shingle Rating Class - What to Know

Shingle Rating Class helps your insurance carrier determine the durability of your roof system. There are 4 Classes of shingles, rated on their impact resistance where 4 is the highest. In 2024, several shingles across multiple manufacturers were upgraded to class 3 shingles. Depending on the shingle class rating of your roof, Insurance Providers may offer lower insurance premiums for impact resistant roof systems.

Here is a list of the shingles affected by the recent change in classification:

•             Timberline HDZ®

•             Timberline HDZ® RS

•             Timberline UHDZ®

•             TimberTex® Premium Ridge Cap Shingles

•             Seal-A-Ridge® Ridge Cap Shingles

•             Z® Ridge Distinctive Ridge Cap Shingles

Other Manufacturer’s, Products Updated to Class 3:

•             GAF | Timberline HDZ  (Only for Shingles manufactured January 1, 2024 and after)

•             IKO | Cambridge (Only for Shingles manufactured January 1, 2024 and after)

•             Owens Corning | Duration (Only for Shingles manufactured January 1, 2022 and after)

•             CertainTeed | Landmark (Only for Shingles installed in 2024 and after)

•             Malarkey | Highlander (Only for Shingles installed January 1, 2023 and after)

Depending on your insurance provider they may offer a lower insurance premium for a roof system with Class 3 Impact-Rated Shingles!

AVI would be happy to complete a roof inspection for you to determine the shingle class rating of your roof system in the case that we were not the original contractor for your home. If AVI installed your roof, we would be happy to provide you with information concerning the impact rating of your roof system! Please fill out the form above to submit your request.