Wind

Post-Hurricane Investigations

IBHS has conducted several damage investigations following major hurricanes to assess building performance across different wind speed zones, exposures, and construction eras. All data are georeferenced and focus on details such as terrain exposure, elevation and roof structures, finishes, openings and opening protection, attached structures, and damage to these building systems. A major finding from…

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Hail

Hailstorms: Radar & Forecasting

Through an ongoing field study and collaboration with our academic partners, IBHS collects unique data from hailstorms to help improve detection, forecasting, and modeling capabilities of hail. This work will (1) allow for better prediction of the quantity and size of hailstones across a given storm area, (2) help improve loss prediction modeling, and (3) better inform claims adjusters…

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Wind-Driven Rain

Building Vulnerability to Wind-Driven Rain Entry

Research IBHS researches variables that affect water entry into buildings during wind-driven rain events such as tropical storms and hurricanes. Results inform IBHS FORTIFIED Standards and other guidance for reducing this type of damage. Demonstration In 2011, IBHS conducted a first-of-its-kind full-house examination of how wind-driven water penetrates common types of openings in residential roof…

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Wildfire

Fire-Retardant Coatings Used in Exterior Applications

Research In buildings where combustible siding has been installed, fire-retardant coatings could be used to reduce their vulnerability to wildfire exposures, particularly radiant heat and flame contact exposures. These exposures are more common in situations where close building-to-building spacing exists and a neighboring building ignites and burns, and where other combustibles (e.g., a wood pile…

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Wildfire

Ember Ignition: Decks

Research During a wildfire, attached decks can be a vulnerable component of a building. If ignited by flames or by wind-blown embers, a burning deck could then ignite the adjacent building. An underdeck flame impingement exposure is used to evaluate deck performance as part of the current California State Fire Marshal and American Society for…

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Wildfire

Ember Entry: Vents

Research Wind-blown embers are the principal cause of building ignitions. Although the importance of embers (also called brands or firebrands) has been understood for a number of years, the ability to evaluate them in a laboratory setting has been a relatively recent development. The objective of this study was to clarify the relative importance of…

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