Residential Attic and Exterior Fire Hazards

Report Date: March 2015

Underwriter Laboratories (UL) Firefighter Safety Research Institute recently completed a series of experiments to  evaluate tactics for fighting exterior and attic fires, and to provide the fire service with scientific knowledge of the dynamics of these fires and the effects of their mitigation tactics. The series of experiments included small-scale, full-scale, and finally field testing in 1 1/2 and 2 1/2 story acquired residential buildings. Ventilation and suppression tactics were examined.

The result of this work is a free on-line training course from UL titled Residential Attic and Exterior Fire Hazards that can be accessed here. The course includes videos, data, and interactive examples to present the results of the fire research as well as tactical considerations to firefighters of all levels. For those wishing to delve deeper, there are links to the detailed reports and data. 


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  • UL Firefighter Safety Research Institute

    UL’s Firefighter Safety Research Institute is dedicated to increasing firefighter knowledge to reduce injuries and deaths in the fire service and in the communities they serve. With a team of experts and access to UL’s leading infrastructure, equipment and vast knowledge and insights, FSRI conducts and disseminates cutting-edge research and training programs that focus on the changing dynamics of residential, commercial and industrial fires, and the impact they have on fire service tactics and strategies.

Residential Attic and Exterior Fire Hazards [on-line course]. Northbrook, IL: Underwriters Laboratories, Inc, 2015.

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