Impact-resistant shingles and roofing materials

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See what makes Timberline HDZ® our most popular roof shingle.

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Download the catalog for solutions to every commercial roofing need. Building Materials

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Master Flow™ Pivot™ Pipe Boot Flashing

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StreetBond® SB120 Pavement Coatings For Home and Building Owners

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Explore Pro Resources Back to Main Menu Contractors Contractor Rewards Get Certified Warranties Residential Toolkit Commercial Toolkit Training by GAF CARE Architects & Design Pros Design Training & Education 3-Part Roof Specifications Sustainable Building Solutions Contact Building and Roofing Science Commercial Roof Selector Documents Data Sheets Details Safety Data Sheets (SDS) Sustainability documentation Commercial Roofing Catalog Custom System Packages Roofing Resources Partner Portal Find a Distributor Find a Rep GAF QuickMeasure ScopeConnect Commercial BuildYourRoof Tool Explore Pro Resources I am a: (select) Architect / Design Pro Building Manager / Owner Commercial Contractor Homeowner Residential Contractor Partner Portal Login Sign Up Browse shingles English (US) English (US) Español (US) Plan Design Impact-resistant roof Back Impact-resistant roof materials 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 UL 2218 Class 3 and 4 rated may even qualify for insurance discounts.2 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.
2 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. 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. Two GAF technologies help select products achieve a Class 4 impact resistance rating¹ 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 temperatures2 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. Ultramat™ high-performance mat technology UltraMat™ technology enhances the shingle at its core to strengthen the shingle’s support layers to help achieve a UL 2218 Class 4 impact-resistance rating.3

This technology is featured in GAF products like Timberline UHDZ® shingles and TimberTex® 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.
2 In temperatures of 40℉ or higher.
3UL 2218 Class 4 Impact-Resistance Test performed by Certerra Analytical - PRI under controlled laboratory conditions. GAF makes no express or implied warranty about the impact performance of this product against hail. Hail damage is not covered under the limited warranty. Choosing roofing solutions from GAF with enhanced impact resistance Class 4 products

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® AS II A shingle that can really take a punch, made with proprietary SBS-modified asphalt. View Timberline® AS II Timberline UHDZ® with UltraMat™ Go beyond beauty and beyond expectations with high-performance fiberglass mat technology. View Timberline UHDZ® Grand Sequoia® AS A sophisticated designer shingle that’s as strong as it is beautiful thanks to SBS-modified asphalt. View Grand Sequoia® AS Camelot® II A designer shingle with sophisticated shapes combined with oversized tabs, inspired by the romance of European architecture. View Camelot® II Woodland® A designer shingle offering a hand-cut look with 21st-century style and artisan-crafted shapes. View Woodland® Slateline® This designer shingle features bold shadow lines and tapered cut-outs to create the appearance of slate. Available regionally. View Slateline® Grand Sequoia® A designer shingle able to make a dramatic, sophisticated statement on a wide range of home styles. Available regionally. View Grand Sequoia® Grand Sequoia® RS A reflective, designer shingle offering the cool roof you need with the distinctive style you crave. Available regionally. View Grand Sequoia® RS Hip and ridge cap shingles Seal-A-Ridge® AS SBS-modified ridge cap shingles made with SBS-modified technology. 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® TimberTex® with Ultramat™ Ridge cap shingles with large exposure help add depth and dimension. Made with Ultramat™ technology. Available outside of the West.4 View TimberTex® Metal roofing TimberSteel™ system* The next-generation of metal roofing is optimized to provide the durability you expect from a metal roof. Available in select states. View TimberSteel™ system 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 *UL 2218, Class 4 rating applies to TimberSteel™ Field Shingles and TimberSteel™ Hip & Ridge Cap Shingles only.
**UL 2218 Class 4 impact resistance rating refers to complete 2-ply LIBERTY™ SBS Self-Adhering Roofing
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.
4 Product availability may vary by area. Please see gaf.com/RidgeCapAvailability for more information. Class 3 products

Products with a UL 2218 Class 3 rating may help protect your roof against hail.1

Asphalt shingles Timberline HDZ® Engineered to be first and built to last, a Timberline HDZ® roof creates exceptional depth and dimension. View Timberline HDZ® Timberline HDZ® RS The ultimate choice for reflective shingles, formulated with EcoDark® granules. View Timberline HDZ® RS Hip and ridge cap shingles Z®Ridge Ridge cap shingles with unique Z-fold design offering the look of thick wood shakes. Available in Southwest & West.4 View Z®Ridge Seal-A-Ridge® Machine cut design provides a much cleaner finished look than hand-cut 3-tab strip shingles. View Seal-A-Ridge® 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.
4 Product availability may vary by area. Please see gaf.com/RidgeCapAvailability for more information. Other off-ridge vents and rooftop accessories that provide impact resistance

Complete your roofing system with GAF accessories that may help protect against impact and pass impact resistance testing modeled after the UL 2218 Class 4 test. The test drops a 2-inch steel ball from 20 feet and checks for cracks through the material.5

Off-ridge vents and rooftop accessories Master Flow™ Pivot™ Pipe Boot Flashing Tough protection at a notorious source for leaks, plumbing pipe penetrations. View Pipe Boot Master Flow™ EZ Cool™ Plug‑in Power Attic Vent – Roof Mount Roof mount power attic vent that plugs into a 110v electrical outlet in the attic. View EZ Cool™ Master Flow™ Wi‑Fi Attic Vent – Roof Mount Control your power attic vent from virtually anywhere with an internet connection via smartphone or tablet. View Wi-Fi Attic Vent Master Flow™ High‑Capacity Dome Vent A great solution for attics requiring large quantities of static exhaust ventilation. View High-Capacity Vent Master Flow™ Power Attic Vents – Roof Mount with Thermostat Serious off-ridge ventilation power with advanced technology. View Power Attic Vent Master Flow™ Bath & Dryer Rooftop Vent Designed to help vent heat and moisture from bathroom exhaust fans, clothes dryers, and other household appliances through the roof. View Bath & Dryer Vent 5 Impact resistance test modeled after UL 2218 Class 4 Standard for Impact Resistance of Prepared Roof Covering Materials was performed by Certerra Analytical - PRI under controlled laboratory conditions. This product is not listed or classified for impact resistance by any testing agency. GAF makes no express or implied warranty about the impact performance of this product against hail. Hail damage is not covered under the limited warranty. See applicable GAF Master Flow™ Limited Warranty available at gaf.com for complete coverage and restrictions. More ways to help protect a roof Through its alliance with IBHS and many educational resources, GAF is committed to helping protect homes. A FORTIFIED Roof™ and select GAF Products — the perfect combination GAF established a one-of-a-kind alliance with the Insurance Institute for Business & Home Safety (IBHS) FORTIFIED™ program6—a voluntary construction and re-roofing standard designed to help protect homes against severe weather. A FORTIFIED Roof may also qualify homeowners for financial incentives or insurance premium discounts.7 View FORTIFIED™ 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. Innovating the future of storm restoration GAF is powering success for homeowners, contractors, and insurance carriers before, during, and after impact. At every stage of the process, GAF provides resources to help rebuild more resilient communities. Learn about Storm Restoration Frequently asked questions Will I get a discount on my homeowners insurance if I used impact-resistant roof materials? Some insurance carriers may offer discounts on homeowner's insurance premiums if you install qualifying UL 2218 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. Will my homeowners policy change because of an impact-resistant 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. Do impact resistant shingles meet FORTIFIED Roof™ standards? 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. Is Timberline HDZ a class 3 or class 4 shingle? Timberline HDZ is a Class 3 impact-rated shingle. Related blog articles The Impact-Resistant Shingles to Consider in Hail Prone Regions GAF’s impact resistant shingles have earned a UL 2218 Class 4 impact resistance rating. What does that mean for your home? What You Need to Know about Impact-Resistant Shingles For homeowners living in areas prone to storms, Class 4 impact-resistant shingles may save your roof. Roof Damage from Hail? Here's What to Do Next Do you have roof damage from hail Learn what warning signs to look for, and how you can get help from roofing contractors and your insurance company. The Company About GAF History Leadership Innovation Standard Industries Sustainability Work With Us Careers at GAFSearch JobsOur Culture Students and Early Careers Quick Links Contact Us Patent Information Blog News & Press Releases Related Businesses Siplast Standard Logistics GAF Energy StreetBond FT Solutions Also of InterestClass 4 Roof Shingles Class 4 Impact Resistant Shingles Explained:...What You Need to Know about Impact-Resistant Shingles Terms of UseContractor TermsPrivacy Notice Applicant Notice Ethics Hotline Your privacy choices Manage Cookies Preferences ©{0} GAF Materials LLC

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GAF offers a variety of products that may help protect your roof against hail, including shingles and accessories that pass Class 3 and Class 4 impact tests.