Wind, Hail, Rain, Fire: LIVE from IBHS!

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Wind, Hail, Rain, Fire: LIVE from IBHS!

July 24, 2024

Wednesday 1:00 p.m.-2:00 p.m. ET

Ever wonder why some buildings better withstand impacts from hail, wind, rain and wildfire? We took viewers on a live, exclusive tour of the Insurance Institute for Business & Home Safety (IBHS) Research Center, a nonprofit state-of-the-art research facility, to see its full-scale test chamber and wall of 105 wind turbines. A walk through IBHS’s hail lab allowed us to learn how it creates realistic hail and shoots it through a cannon to evaluate the performance of common building materials like shingles and siding. We also witnessed a full-scale wildfire demonstration to preview the latest research focused on wind-driven building-to-building fire spread. Watch the replay to learn how IBHS translates science into action to help make communities more resilient and how insurance industry support makes that possible.

Watch webinar replay

Summary

What did we learn? Here are the top takeaways from Wind, Hail, Rain, Fire: LIVE from IBHS:

Research can help government and industry leaders adapt building standards to help protect structures against extreme weather. “Research coming out of IBHS, an independent, nonprofit scientific research organization supported by the insurance industry, can be used to inform changes that will make buildings and communities more resilient,” said Roy Wright, IBHS President and CEO.

“For example, builders can improve resilience to wildfires by using double-pane tempered windows and noncombustible cladding and siding material such as stucco, Hardie board and fiber cement,” said Faraz Hedayati, IBHS Lead Research Engineer. “We look at the entire building as a system and provide recommendations that are above the building codes to reduce risk.”

“Mother Nature has changed the game on us,” said Anne Cope, IBHS Chief Engineer. “The things we thought were OK one or two decades ago are not sustainable now,” she added. “And if we’re going to get to a place of economic stability across multiple industries, we have to adapt. We’re slowly changing and moving the needle on how we’re building.”

Wind from tornadoes, hurricanes and straight-line winds is responsible for billions of dollars in losses each year. IBHS has the only laboratory in the world that can test full-scale buildings in highly realistic windstorms, using turbines to produce wind speeds up to 130 mph. One key finding: “A FORTIFIED Roof™ is more resilient in the face of strong winds that can tear asphalt shingles off, exposing the layers below,” said Cope. “A typical roof has a thin layer of felt paper stapled to the wood decking and no protection for the gaps that must be left to allow the wood to expand and contract,” she added. In contrast, the FORTIFIED Roof that Cope displayed had thicker felt paper nailed down with plastic cap roofing nails and the necessary gaps protected with flashing tape. She suggested that two practical steps homeowners can take to protect a home against wind are to get a FORTIFIED Roof and a wind-rated garage door. “The garage door is the largest opening on your home, and strong winds can blow in and pop off your roof,” Cope said. “Having a strong garage door can be a real game-changer.”

Every inch of rain that falls can pour the equivalent of nine bathtubs full of water on a typical 2,000-square-foot house. If asphalt shingles and felt paper blow off, a typical roof allows rain to leak straight into the attic through the necessary gaps in the wood decking. “If that water breaches your roof, it can do significant damage. Your ceiling is going to fall down on your couch,” Cope warned. “FORTIFIED roofing can help to route the water safely into the gutter.” In addition to underlayment nailed down with button caps and flashing tape covering gaps, a FORTIFIED Roof should have a proper starter strip and drip edge. “Those pieces together make a beautifully resilient roof,” she said. “You can reduce damage by a multiple of four when you roof the right way.” Agents and brokers can refer policyholders to FORTIFIED roofing information on the IBHS website to guide them in roofing after a loss. “The cost to install a FORTIFIED Roof can be as low as $500 extra per house for the materials,” Cope said. “This is a very inexpensive thing to do to mitigate the risk of damage.”

Different types of hail cause distinct types of damage to roofs. “Storms contain both hard and soft hail,” explained Chris Sanders, IBHS Research Project Scientist. “Hard hailstones tend to do a ‘hard bounce’ off a roof. It causes a hard shatter – an impact where shrapnel goes everywhere,” he said. Soft hailstones “are more like a snowball that sticks and shears granules off of shingles,” he added. IBHS scientists travel across the Great Plains and parts of the South to collect data from hail-producing thunderstorms to take back to the laboratory, where they simulate real-world hail events and test shingles for resilience to hail. In the IBHS hail lab, Travelers Institute President Joan Woodward shot a two-inch hailstone out of a hail cannon that flew at 64 mph into asphalt shingles. “What we’ll do from here is actually measure the dent and ridge and granular loss that occurs,” Sanders said. The IBHS website provides roof shingle hail impact ratings for the top brands of impact-resistant shingles.

Wildfires are a bigger threat than ever, but research is helping the insurance industry learn how to mitigate risks. “Wildfires rarely invaded communities decades ago,” said Wright. “But in recent years that invasion has been catastrophic.” Scientists at the IBHS Research Center recently ran a wildfire experiment on a completely furnished accessory dwelling unit (ADU), a common type of smaller housing unit found across California, Oregon and Washington.

“IBHS scientists are studying how embers attack homes and how fires use ‘connective fuels’ to spread, along with looking at building material performance and combustion thresholds,” explained Hedayati. “We’re working to analyze and understand how fire jumps from one building to the other as a function of building material, wind speed and structure separation,” he said. Hedayati advised homeowners to protect their homes now by removing combustible material within a five-foot radius of the home’s exterior, protecting vents and eliminating combustible fencing near the structure.

Speakers

Roy Wright headshot  
Roy Wright
President and CEO, IBHS

Anne Cope headshot
Anne D. Cope, Ph.D., P.E.
Chief Engineer, IBHS

 Chris Sanders headshot
Chris Sanders
Research Project Scientist, IBHS

 Faraz Hedayati headshot
Faraz Hedayati, Ph.D.
Lead Research Engineer, IBHS

Host

Joan Woodward headshot
Joan Woodward
President, Travelers Institute; Executive Vice President, Public Policy, Travelers


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