►  The U.S. sees about 4800 hailstorms every year.
►  The largest recorded U.S. hailstone was 8 inches
     in diameter and weighed almost 4 pounds.
►  The heaviest hailstone ever recorded was in
     northern India in 1939-7.5 pounds.
►  Hail has been know to pile up in three foot drifts.
►  Large hail has penetrated completely through
     roof structures.
►  Hail accounts for an estimated 1 billion dollars per
    year in property damage in the U.S.
►  Most hail in the United States occurs in the
    warm summer months.
 

       A hail belt exists east of the continental divide from northern Texas into Canada but hailstorms occur in every state but Alaska (see map below). This region has been responsible for most of the hail damage in terms of dollars and structures damaged.  Roofs of entire cities and counties have been damaged or totaled in a single hailstorm, costing the insurance industry, and consequently unaffected policy holders, billions of dollars. 

      Hail's destructive result coupled with the frequency of hail storms, has created a need for a new generation of superior performing roofing materials, the development of which is being driven by the insurance industry. This push for hail resistant roofing has resulted in a new category of roofing materials referred to as "impact resistant". These products must pass an industry standard test referred to as UL 2218 as certified by Underwriters Laboratories, and should be specified in hail prone areas of the country.  UL 2218 classified materials should be so labeled.

       Some roof coverings, particularly those made of metal, may resist fracture, but can be dented.  So, while they test well, hail may leave the roof dimpled, with potential failure of the metal's surface coating.  Keep this in mind when using the UL standard to gauge the quality of a roof covering. For a summary of impact/hail performance of various other roofing products click on the link.

Ce·DUR  and Hail

       Ce·DUR is one of these next generation roofing materials with outstanding hail/impact resistance, having currently passed UL 2218 testing as a Class 3 material. Additionally, Ce·DUR Shakes repair themselves of hail impact indentations during a few sunny summer weeks.  The DURATHON material is a closed-cell material that compresses at impact.  As heat is applied by normal sun exposure, this compression is relaxed, and the cellular structure returns to its original state.

Ce·DUR Shakes have
             "Self Healing" Impact Recovery Properties

        Ce·DUR Shakes also:

►  Do not fracture or split
►  Are colored throughout
►  Have no coatings to wear off
►  Carry a 1 3/4" hail warranty
►  Have superior walk-on strength