Texas Insurance Claim Hail Study 2011
A series of severe thunderstorms with hail passed through portions of the Dallas/Fort Worth metropolitan area on May 24, 2011 causing significant damage. Several studies were conducted to study the impact of hail on roofs.
The Roofing Industry Committee on Weather Issues, Inc. (RICOWI) completed the second Hail Investigation Program (HIP), including seven inspection teams that examined over one hundred roofing systems during a four-day period in June 2011. The purpose of the project was to document the effects of hail impact on a variety of roofing products, and to describe roof assembly performance and modes of damage for substantiated hailstone sizes. This program provided an opportunity for IBHS staff to participate in the damage surveys and lend their expertise to the investigations. Participating IBHS staff included Senior Engineering Director Remington “Rem” Brown, P.E.; Lead Research Engineer and Director of Hail Research Dr. Tanya Brown; and Senior Engineering Manager, Commercial Lines Chuck Miccolis.
Read the full RICOWI Hail Field Investigation.
These thunderstorms caused an estimated $876.8 million in property and automobile damages. IBHS conducted a separate study utilizing property claims and policy-in-force data to evaluate the resiliency of building systems subjected to hail in this event. The study also provided a comparison between radar-estimated maximum hail sizes and damage levels seen in the claims data, to facilitate building relationships between the perceived radar-estimated risk and ground-truth damage data.
See the IBHS Claims Analysis Study of the May 24, 2011 Hailstorms in Dallas-Fort Worth.
Texas Insurance Claim Hail Study 2003
Like most residents of the southern U.S. Great Plains States, those who live in the Dallas-Fort Worth metropolitan area can expect damaging hail of one-inch diameter or greater every three to five years on average. While hailstorms are generally not a great threat to human life, the extensive damage they cause to automobiles, crops, roofs, etc., carries a multi-billion dollar annual price tag. A large part of this cost is due to damage to residential roofs.
In order to further its hail mitigation efforts and provide more insight into typical costs associated with hail impact on various roofing types, the IBHS conducted a study—using insurance claims data from a hailstorm on April 5, 2003—to investigate trends in insured losses and damages to single-family homes with respect to roof type, hail size, impact-resistance status, and other variables.