Hail damage to asphalt roofing:

The article includes a list of manufacturers of hail-damage resistant roofing products and includes additional references to information about plastic and metal roof covering products.

Hail Damage Resistant Roofing Products

See PLASTIC ROOFING TYPES for examples of impact resistant roof materials.

Some insurance companies offer insurance premium credits for building owners who have installed damage resistant roof shingles or roofing.

The Texas Department of Insurance provides information about hail-damage resistant roofing in their article Products Qualifying for Impact Resistant Roofing Credits (below on this page, updated in 2023) where the original article described two classes of hail damage resistant roofing products:

1. Qualified non-metal [roofing] products that resist hail damage. Producers of non-metal roofing that is hail damage resistant include [Web search 5/21/2010]
• Anbrook Industries Ltd.
  Pitt Meadows, B.C. Canada
  Phone: 604-465-5657
  Cedar Wood Shakes - Class 4

  Atlas Roofing
  Daingerfield, Tx
  Phone: 800-270-2852
  Asphalt Shingles - Class 4

  Certain Teed Corporation
  Blue Bell, PA
  Phone: 610-341-6678
  Web Address: www.certainteed.com
  Asphalt Shingles - Class 4

  Clarke Group Marketing, Inc.
  Mission, B.C. Canada
  Phone: 800-663-8707
  Western Red Cedar Wood Shakes
  and Shingles - Class 3 and 4

  Crowe Building Products Ltd.
  Ontario, Canada
  Phone: 905-529-6818
  Web Address: www.authentic-roof.com
  Baljen TPO Polymer Roof Tiles - Class 4

  Duro-Last Roofing, Inc.
  Saginaw, MI
  Phone: 800-248-0280
  Web Address: www.duro-last.com
  PVC Single-Ply Membrane - Class 4

  EcoStar, a Divison of Carlisle-Syntec
  Carlisle, PA 17013
  Phone: 800-211-7170
  Web Address: www.ecostar.carlisle.com
  Molded Polymer Roof Tiles - Class 4

  Elk Corporation of Alabama
  Tuscaloosa, AL
  Phone: 205-342-0287
  Asphalt Coated Fiber Glass Shingles - Class 4

  EnviroGard L.L.C.
  Tulsa, OK
  Phone: 918-299-3540
  Marlex Polymer Roof Panels - Class 4

  GAF Materials Corporation
  Wayne, NJ
  Phone: 800-365-7353
  Web address: www.gaf.com
  Asphalt Shingles - Class 4

  G.E.M. Inc.
  Calgary, Alberta Canada
  Phone: 403-215-3333
  Synthetic Slate Roof Tiles - Class 4

  Malarkey Roofing Products
  Portland, Or
  
  Phone: 800-545-1191
  Web Address: www.malarkeyroofing.com
  Asphalt Shingles - Class 4

  Meeker Cedar Products
  Mission, B.C. Canada
  Phone: (604) 826-6215
  Cedar Wood Shakes and Shingles - Class 3 and 4

  New Group Asia Construction Material Supply, Inc.
  Houston, TX
  Phone: 888-359-2288
  Web Address: www.newgroupasia.com
  Molded Polymer Roofing Tiles - Class 4

  Owens Corning
  Toledo, OH
  Phone: 419-248-8785
  Asphalt Coated Class Fiber Shingles - Class 4

  Re-Con Building Products, Inc.
  Portland, Or
  
  Phone: 877-276-7663
  FireFree Naturals Slate/Shakes - Class 4

  Re-New Wood
  Wagoner, OK
  Phone: 918-485-5803
  Phone: 918-485-4687
  Recycled Resin Formed Shingles - Class 4

  Royal Building Products
  Woodbridge, Ontario, Canada
  Phone: 1-800-387-2789
  Plastic Shingles - Class 4

  Silver Creek Premium Products, Ltd
  Matsqui, B.C. Canada
  Phone: 877-292-3327
  Cedar Wood Shakes and Shingles - Class 3 and 4

  South20, Inc.
  Dallas, TX
  Phone: 405-526-6743
  Wood Shakes - Class 4

  S&W Forest Products Ltd.
  Mapleridge, B.C. Canada
  Phone: 1-800-806-9663
  Cedar Wood Shakes - Class 3 and 4

  Teal Cedar Products
  Surrey, B.C. Canada
  Phone: 888-995 8325
  Web Address: www.tealjones.com
  Cedar Wood Shakes and Shingles - Class 3 and 4

  U.S. Century, L.L.C.
  San Antonio, TX
  Phone: 877-353-9742
  FlexShake, Rubber Shingles - Class 4

  Waldun Forest Products Partnership
  Maple Ridge, B.C.
  Phone: 604-462-8266
  Cedar Wood Shakes and Shingles - Class 3 and 4

  Watkins Sawmills, LTD.
  Mission, B.C. Canada
  Phone: 800-663-8301
  Cedar Wood Shakes - Class 3 and Class 4

  White Mountain Building Products
  Payson, AZ
  Phone: 928-468-0599
  Web Address: www.villageshake.com
  Asphalt Shingles - Class 4
  

2. Qualified metal [roofing] products that resist hail damage. Metal roofing materials that meet the UL Standard 2218 are eligible for an insurance discount as of May 1, 1998. They are listed below.
   • AEP-SPAN
     Dallas, TX
     Phone: 800-527-2503
     Formed Steel Panels - Class 4

     Allmet Roofing Products Division
     Division of Metals USA Building Products Canada Inc.
     Courtland, Ontario, Canada
     Phone: 800-265-9357
     Web Address: www.allnet.com
     Formed Steel Panels - Class 4

     American Roofing Industries
     Anitoch, CA
     Phone: 925-706-7537
     Stone Coated Steel Roofing Panel s- Class 4

     Berridge Manufacturing Company
     San Antonio, TX
     Phone:  800-669-0009
     Website:  www.berridge.com
     Formed Steel Panels - Class 4

     Classic Products, Inc.
     Piqua, OH
     Phone: 800-543-8938
     Aluminum Shingle - Class 4
     Steel Shingles - Class 4

     DECRA Roofing Systems
     Corona, CA
     Phone: 909-272-8180
     Formed Steel Shingles - Class 4

     Delta Building Products Ltd.
     Delta, B.C., Canada
     Phone: 604-953-1000
     Aluminum Shingle, Tile, & Shake Panels - Class 4
     Steel Shingles, Tiles, & Shake Panels - Class 4

     Fabral, Inc.
     A Euramax Company
     Lancaster, PA
     Phone: 800-477-2741
     Metal Roof Panels - Class 4

     Galvak S.A. de C.V./Galvamet Inc.
     Nuevo Leon, Mexico
     Phone: 1-888-489-1367 (Joaquin Armendaiz)
     Galvatile Steel Roofing Panels - Class 4

     Gerard Roofing
     Brea, CA
     Phone: 714-529-0407
     Formed Steel Shingles - Class 4

     Great American Manufacturing, Inc.
     Houston, TX
     Phone: 713-910-2646
     Formed Aluminum Shingles - Class 4

     Lone Star Metals
     Orange, TX
     Phone: 409-886-7488
     Steel Panels - Class 4

     Met-Tile, Inc.
     Ontario, CA
     Phone: (909) 947-0311
     Metal Roof Panels - Class 4

     METALWORKS
     Moon Township, PA
     Phone: 800-320-0101
     Formed Steel Shingles - Class 4

     Metco Supply
     Junction, TX
     Phone: 800-258-8378
     Metal Roof Panel - Class 4

     METROTILE Manufacturing - Metro Roof Products & SteelROCK (MRP)
     Oceanside, CA
     Phone: 866-638-7648
     Formed Steel Panels - Class 4

     Prime Building Components LLC
     Dublin, TX
     Phone: 254-445-3416
     Coated Steel Panels - Class 4

     Roser Co. Ltd.
     Kyongbuk, Korea
     J.T. Brown Consulting, Inc.
     Laguna Niguel, CA
     Phone: 949-362-0508
     Stone Coated Steel Panel - Class 4
     Copper Panels - Class 4

     Sawyer Metal
     Tyler, TX
     Phone: 903-531-0182
     Web Address: www.sawyermetal.com
     Metal Roof Panels – Class 4

     Southwest Metal Systems, L.L.C.
     Mineola, TX
     Phone: 903-569-8811
     Metal Roof Panels - Class 4

     Steel Building Supply
     Center, TX
     Phone: 888-598-6373
     Steel Roof Panels - Class 4

     Sweetwater Steel Co., Inc.
     Sweetwater, TX
     Phone: 800-982-3384
     Steel Roof Panels - Class 4

     Texas Energy Savers Co.
     Joshua, TX
     Phone: 817-558-2004
     Steel Roof Panels - Class 4

     Texoma Steel buildings Inc.
     Burkburnett, TX
     Phone: 800-686-0742
     Coated Steel Panels - Class 4

     Titan Metal Roofing Products
     Fort Worth, Texas
     877-848-2664
     Metal Roof Panels - Class 4

     Whirlwind Steel Building Systems
     Houston, TX
     Phone: 800-324-9992
     Metal Roof Panels - Clas

 

Hail Damage to Roofs, Research Citations

• Also see our research citations atReferences or Citations
• Argonne National Laboratory, Office of Science, U.S. Department of Energy, "Vertically Shot Bullet Landing Speed", Michael R. Rayno (Rev), Argonne National Laboratory, Building DEP/223 9700 S. Cass Ave. Argonne, Illinois 60439-4845 USA, This article provides calculations and examples of the terminal velocity of a hailstone. Web search 03/14/2011, original source: http://www.newton.dep.anl.gov/askasci/phy05/phy05051.htm
  Quoting:
  
  HAILSTONE: A spherical hailstone weighing 10 gm has a volume of 10 cm^3 since the density is 1 gm/cm^3. REALITY CHECK: The volume = 10 cm^3 = 4/3 *pi* r^3. So r^3 = 2.4 cm^3 or a radius of r = 1.3 cm or a diameter of 2.6 cm (a fairly nominal hailstone -- about an inch in diameter).
  The potential energy of a hailstone weighing 10 gm = 10^-2 kg falling from 10 km is:
  
  P.E. = m*g*h = 10^-2 * 9.8 * 10,000 (about 10^-2+1+1 = 10^0 = 1 Joule).
  
  Its velocity assuming complete conversion of the P.E. to K.E. = 1/2*m*(v)^2 gives:
  
  1 = 1/2x10^-2*(v)^2 or v^2 = 200 m^2 or about 15 m / sec
• Carrns, Ann, "Insurers Report Rising Hail Damage Claims", Inflation is adding to the cost of materials for roof and car repairs, increasing liability, The New York Times, p. B5 (Business), 23 March 2024
  
  Excerpts: Asphalt shingles, used on three-fourths of homes in North America, are considered impact resistant if they are rated a three or four by independent laboratory tests (on a scale of one to four).
  ...
  The home safety institute conducts further testing and publishes rankings (from "poor" to "excellent") of commonly available products. Metal or tile roofs can also offer hail protection.
  ...
  Impact-resistant asphalt shingles may cost more than conventional asphalt shingles - as much as 10 percent, depending on location.
  
  Watch out: depending on where you live, insurance coverage for hail damage to your home or car may be limited by a separate deductablel. Check your policy.
• TDI, Products Qualifying for Impact Resistant Roofing Credits [Website] Texas Department of Insurance - (2023) "Products Qualifying for Impact Resistant Roofing Credits", Texas Department of Insurance.
• "Roofing: Premium Credits Product Listing, Roofing Products Eligible for Discount", State Farm Insurance 5/1/2010 - Web Search 07/12/2010, original source http://www.statefarm.com/_pdf/nationwide.pdf [copy on file as /roof/State_Farm_Premium.pdf]
• HAIL DAMAGE to ASPHALT ROOF SHINGLES [PDF] Timothy P. Marshall, Richard F. Hertzog, Scott J. Morrison, Haag Engineering, Dallas TX,
• GAF Shingle & Accessor Limited Warranty - 2018 [PDF] GAF Corporation, gaf.com
  
  Note: this warranty explicitly omits warranty protection from hail damage:
  
  What Is Not Covered. Even if your GAF Products were not properly installed according to GAF’s application instructions or to standard good roofing practices, this limited warranty remains in effect.
  
  However, GAF will NOT be liable for and this warranty does NOT apply to:
  
  (2) Damage resulting from causes beyond normal wear and tear, such as:
  
  a) acts of nature, such as hail, fire, or winds (including gusts) over the applicable wind speed listed above.
  
  b) impact of traffic on the roof or foreign objects, including damage caused by objects blown onto the roof by wind.
  
  c) improper storage or handling of the GAF Products.
  
• GAF System Plus Limited Warranty The Legal Stuff [PDF] (updated 2/18) GAF Corporation, gaf.com
• Greenfeld, S.H., 1969: Hail resistance of roofing products, Building Science Series #23, National Bureau of Standards, 9 pp. Koontz, J.D., 1991: The effects of hail on residential roofing products, Proc. of the Third International Symposium on Roofing Technology, NRCA/NIST, 206-215.
• Koontz, Jim D. "The effects of hail on residential roofing products." In Proceedings of the Third International Symposium on Roofing Technology,” NRCA/NIST. 1991.
• Marshall, Timothy P., Richard F. Herzog, and Scott J. Morrison. "Hail Damage to Asphalt Roof Shingles." In 22nd Conference on Severe Local Storms. 2004.
• Marshall, T. P., and R. F. Herzog, 1999: Protocol for Assessment of Hail-Damaged Roofing, Proc. of the North American Conf. on Roofing Technology, Toronto, Canada, p. 40-46.
• Marshall, T.P, R.F. Herzog, S.J. Morrison, and S.R. Smith, 2002. Preprints, 21st Conf. on Severe Local Storms, San Antonio, TX, Amer. Met. Soc., 95-98.
• Marshall, Timothy P., Richard F. Herzog, Scott J. Morrison, and Steven R. Smith. "P 9.2 HAIL DAMAGE TO TILE ROOFING." - retrieved 11/19/2014, original source: https://ams.confex.com/ams/pdfpapers/81093.pdf?referer=www.clickfind.com.au
• Marshall, T.P., Herzog, R.F., Morrison, S.J., "Hail Damage to Asphalt Roof Shingles", Haag Engineering Co., Dallas TX, retrieved 8/8/2014 as republished (with permission ?) at stormstopperroofing.com/faq/roofing-hail-damage-asphalt-shingles/
• Morrison, S.J., 1999: Long-Term Effects of Hail on Asphalt Composition Shingles Proc. of the North American Conf. on Roofing Technology, Toronto, Canada, 30-39.

...

Continue reading at HAIL DAMAGED SHINGLES & OTHER ROOF COVERINGS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

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Also see PLASTIC ROOFING TYPES for more examples of impact resistant roof materials.

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SHINGLE HAIL DAMAGE RESISTANT PRODUCTS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

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