Standard for exterior vents in wildfire-prone areas approved

摘要

ASTM E2886/E2886M, Test Method for Evaluating the Ability of Exterior Vents to Resist the Entry of Embers and Direct Flame Impingement, provides -, performance criteria for attic vents to be used for new construction in wildfire-prone areas. The California Building Code, Chapter 7A, states that attic vents used in such construction should resist the intrusion of embers and flames since the spread of embers through these vents is a major cause of the igniting of houses and other buildings during wildfires, according to the ASTM. "Embers from wildfires, not the flames from the main body of the wildfire, are the main threat that homes must resist," says ASTM member Stephen Quarles, senior scientist, Insurance Institute for Business & Home Safety. "ASTM E2886 will help users discriminate between the ember and flame resistance performance of vents."