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…

Read more
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…

Read more
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…

Read more
Wind

Discontinuous Metal Roofing

Research Most roofs and walls are made of layers. Often, the exterior layer is air-permeable, meaning air can pass through the different layers. When a building experiences pressure from wind, air-permeable coverings allow some pressure to pass through gaps, joints or holes to the layer beneath. This causes a partial equalization, meaning the exterior covering…

Read more
Wind

Manufactured Homes & Attached Structures

Research IBHS researches the high-wind performance of manufactured homes with attached structures to develop guidance for effective mitigation measures. This research also provides opportunity to measure full-scale wind loads on these structures, which can be used to evaluate existing building code wind loads. Demonstration IBHS, in conjunction with the American Modern Insurance Group, conducted a…

Read more