Impact-resistant roof materials
GAF shingles and accessories engineered to give your roof a fighting chance against hail.
Potential benefits of roofs with strong impact resistance
As North America's largest roofing manufacturer, GAF offers a variety of products that may help protect your roof against hail, including shingles and roofing materials that pass Ul 2218 Class 3 and Class 4 impact tests.1 Products that are UL2218 Class 3 and 4 rated may even qualify for insurance discounts.2
Impact-resistance testing
UL 2218 impact testing involves dropping various sized steel balls onto tested materials from different heights and evaluating whether there are any cracks, tears, or fractures on the back surface of the product.
Products that withstand the impact of a 1.75-inch steel ball dropped from 17 feet receive a UL 2218 Class 3 rating while products that withstand the impact of a 2-inch steel ball dropped from 20 feet receive the highest rating, UL 2218 Class 4.
Products that withstand the impact of a 1.75-inch steel ball dropped from 17 feet receive a UL 2218 Class 3 rating while products that withstand the impact of a 2-inch steel ball dropped from 20 feet receive the highest rating, UL 2218 Class 4.
SBS-modified asphalt technology
Our proprietary SBS-modified asphalt technology provides excellent flexibility, which helps reduce impact stress. This technology also enhances resistance to cracking and allows shingles to lay flatter in colder temperatures3 when compared to our standard asphalt shingle, making these SBS-modified shingles an easy-to-handle and dependable option for use in varying climates.
This SBS-modified asphalt technology is featured in Timberline® AS II and Grand Sequoia® AS shingles as well as TimberCrest® and Seal-A-Ridge® AS ridge cap shingles.
This SBS-modified asphalt technology is featured in Timberline® AS II and Grand Sequoia® AS shingles as well as TimberCrest® and Seal-A-Ridge® AS ridge cap shingles.
1 Only products sold in packages bearing the UL 2218 Class 3 or Class 4 Classification statement are rated for Class 3 or Class 4 impact resistance. Testing performed under controlled laboratory conditions. GAF makes no express or implied warranty about the impact performance of these products against hail. Except as otherwise provided in the Timbersteel™ ArmorPledge™ Limited Warranty, hail damage is not covered under GAF limited warranties. See applicable warranties available at gaf.com for complete coverage and restrictions.
3 In temperatures of 40℉ or higher.
3 In temperatures of 40℉ or higher.
Features and benefits
Impact resistance
GAF offers a variety of products with UL 2218 Class 3 and Class 4 ratings in regions prone to hail.
Potential insurance savings
Some carriers may offer discounts on homeowner's insurance premiums for installing qualifying Ul2218 Class 3 or Class 4 rated roofing products.2
Increase home value
A new roof may help increase your home's resale value.
2Insurance discounts are not guaranteed. If available, discounts vary by state and insurance company. Contact your insurance agent for information before installing a new roof.
Choose the right impact-resistant roofing solution at GAF
Class 4 products have the highest rating based on UL 2218 impact testing and may help protect your roof against hail.1
Asphalt shingles
Timberline UHDZ® with Ultramat™
Go beyond beauty and beyond expectations with high-performance fiberglass mat technology.
View Timberline UHDZ®
Timberline® AS II
A shingle that can really take a punch, made with proprietary SBS-modified asphalt.
View Timberline® AS II
Grand Sequoia® AS
A sophisticated designer shingle that’s as strong as it is beautiful thanks to SBS-modified asphalt.
View Grand Sequoia® AS
Hip and ridge cap shingles
Seal-A-Ridge® AS
SBS-modified ridge cap shingles made with SBS-modified technology. Available in all areas.
View Seal-A-Ridge® AS
TimberCrest®
Ridge cap shingles with bullnose rounded edge. Made with SBS-modified technology. Available in the Southwest & West.4
View TimberCrest®
Roll roofing
LIBERTY™ Roll Roofing System**
The LIBERTY™ SBS Self-Adhering Roofing System protects low-slope residential roof areas such as porches, garages, carports, and sheds.
View the system
Roll roofing
LIBERTY™ Self-Adhering Base/Ply Sheet
Durable membrane used as a base sheet for LIBERTY™ Self-Adhering Cap Sheet or as a ply sheet in modified bitumen roofing systems.
View Product
LIBERTY™ Self-Adhering Cap Sheet
An SBS Granule-surfaced roofing membrane providing durable protection for low-slope areas of your property.
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LIBERTY™ Asphalt Primer
Creates a base with excellent adhesion for GAF LIBERTY™ and other asphaltic roof systems.
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LIBERTY™ Flashing Cement
A premium formulation for use as a cold-applied bonding agent with GAF LIBERTY™ and other asphaltic roof systems.
View Product
Shingles
Hip and ridge cap shingles
6 Eligibility criteria, terms, and restrictions apply. See current FORTIFIED Home™ Standard available at fortifiedhome.org for details. U.S. only.
7 Insurance discounts, grants, and other incentives are not guaranteed and may vary if available. For more information visit fortifiedhome.org/incentives.
7 Insurance discounts, grants, and other incentives are not guaranteed and may vary if available. For more information visit fortifiedhome.org/incentives.
Frequently asked questions
Some insurance carriers may offer discounts on homeowner's insurance premiums if you install qualifying Ul2218 Class 3 or Class 4 rated roofing products. Insurance discounts are not guaranteed. If available, discounts vary by state and insurance company. Contact your insurance agent for information before installing a new roof.
While some homeowners insurance carriers offer a discount for UL 2218 Class 3 and Class 4 rated roofs, they may require that you add a cosmetic waiver endorsement to your policy to receive the discount. These waivers can limit the coverage for hail in the future, including the exclusion of hail damage that does not cause the roof to leak as a result of the hail damage. Contact your insurance carrier to find out what discounts you may qualify for with an impact-resistant roof and how it may impact your coverage as a result.
Asphalt shingles that are rated Good or Excellent on the IBHS Hail Impact Ratings, such as GAF Timberline® ASII shingles can be used to comply with the shingle impact resistance requirement of the FORTIFIED Home™ Hail Supplement. Visit gaf.com/fortified and current FORTIFIED Home™ Standard available at fortifiedhome.org for details. U.S. only. For the most current IBHS ratings, visit here.
Related blog articles
The Impact-Resistant Shingles to Consider in Hail Prone Regions
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Roof Damage from Hail? Here's What to Do Next
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