ABSTRACT

Coffee Break Training: Building Construction: Part 4: How Fire Resistance Ratings are Measured   [open pdf - 0B]

"Will a four-hour fire wall really resist the spread of heat and flames for 240 minutes? Will a two-hour floor/ceiling assembly truly prevent vertical fire spread for 120 minutes while a highrise building is evacuated? The answer is definitely 'maybe' and depends upon the actual fire exposure conditions. In order to obtain an hourly fire-resistance rating, sample fire assemblies must undergo rigorous testing under controlled laboratory conditions. These conditions may not match real world environments found in buildings."

Report Number:
Coffee Break Training - Fire Protection Series No. FP-2009-48
Publisher:
Date:
2009-12-01
Series:
Copyright:
Public Domain
Retrieved From:
United States Fire Administration: http://www.usfa.fema.gov/
Media Type:
application/pdf
URL:
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