Openings in fire protective ceilings: experimental investigations of steel-supported construction

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AuthorSearch for:
TypeArticle
Journal titleBuilding Research Note
ISSN0701-5232
Volume155
Pages43
Subjectducts (hvac); fire resistance tests; suspended ceilings; openings; fire break partitions; Fire; gaine de chauffage; essai de résistance au feu; plafond rapporte; cloisonnement coupe feu
AbstractA suspended ceiling and the air space between the ceiling and the floor above proved to provide increased fire endurance. A number of questions remained with respect to the effects on fire endurance of openings in the ceiling for ducting. This paper describes two series of tests designed to demonstrate that 1) ductwork does not significantly affect fire endurance, 2) protection against vertical radiation from the top surface of a duct is adequate, and 3) duct openings through the ceiling may be quite large.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierBRN-155
NRC number1706
NPARC number20378108
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Record identifier5b254064-2ef5-43a4-93fc-0221d3658bb1
Record created2012-07-24
Record modified2016-05-09
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