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07/22/2010

New Study Examines Shingle Performance in Hurricanes

How well do asphalt shingle roofs stand up in tropical storms?

 
New Study Examines Shingle Performance in Hurricanes

The Institute for Business & Home Safety (IBHS) released its latest research study, “Surviving Nature’s Fury:  Performance of Asphalt Shingle Roofs in the Real World,” which investigated damage from Hurricanes Gustav and Ike in 2008. Roof cover damage is the most frequent source of hurricane-related insurance claims not related to storm surge. The findings examined how well asphalt shingle roofs perform during a hurricane.

“IBHS’ analysis examined damage levels at relatively low wind speeds as a function of the age of the roof, the adoption and enforcement of modern building codes, and investigated the validity of questions concerning whether the current approach to the design of shingles that reduces uplift loads is adequate,” said Timothy Reinhold, IBHS’ senior vice president of research and chief engineer. 

The study uncovered several key findings:

  1. Damage occurred even in fairly light winds – peak gust wind speeds were less than 90 mph in the areas where houses were studied. This demonstrates that it does not take a major hurricane with high wind speeds to substantially damage a roof.
  2. A significant number of roofs installed between 1998-2001 experienced damage of up to 5% of the roof area. However, damage dropped dramatically for roofs built after 2002. It is possible that the newness of the roof covers or building code changes in 2002, which added a check for roof cover wind rating, could account for this drop.
  3. Newer shingle roofs installed after the Texas Department of Insurance adopted the 2000 International Building Code in February 2003 exhibited much less wind damage from the wind speeds produced by Hurricane Ike than older roofs in the same area. This could be attributed to a combination of age and code/product changes.

“This study just begins to address the issues associated with shingle performance in high winds,” said Reinhold. “More research is needed both in terms of field investigations for events, where new wind-rated products are exposed to higher wind speeds, and in a controlled environment, where effects of aging and wind speed can be investigated on demand for a variety of products.”

The full version of the study is available in the summer issue of IBHS’ Disaster Safety Review: http://www.disastersafety.org/resource/resmgr/PDFs/DSR_summer_2010_web.pdf

 


Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

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Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
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Add highly responsive multi-zone comfort to any building project, in any climate. Our CITY MULTI H2i R2- and Y-Series VRF systems give you flexibility to fit the needs of any building. Enjoy 100% heating capacity at 0°F outdoor ambient, and 85% heating capacity at -13°F outdoor ambient.  For more information, log on to www.mitsubishipro.com


Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.

Add highly responsive multi-zone comfort to any building project, in any climate. Our CITY MULTI H2i R2- and Y-Series VRF systems give you flexibility to fit the needs of any building. Enjoy 100% heating capacity at 0°F outdoor ambient, and 85% heating capacity at -13°F outdoor ambient.  For more information, log on to www.mitsubishipro.com

 
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