Tag Archives: NFPA 285

Exterior Wall Assemblies: Are you getting what you specified?


Exterior wall systems have received a lot of well-deserved attention as no amount of ink has been spared over the last decade writing about the critical importance of a tight, fire safe, and tested building enclosure. However, the traditional project delivery process seems designed to undermine the intent of achieving a building enclosure that meets all of these criteria even when it has been properly specified.

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Specifying NFPA 285 Testing


By Joseph Berchenko AIA, CSI, CCS

For testing certain wall assemblies, the 2012 International Building Code (IBC) requires National Fire Protection Association (NFPA) 285, Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Non-load-bearing Wall Assemblies Containing Combustible Components. (That standard’s title notwithstanding, the test is performed on both load-bearing and non-load-bearing wall assemblies.) Its successful completion demonstrates the ability of an exterior wall mockup to contain vertical and horizontal flame spread …

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