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…

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…

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…

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…