Results of Fire Resistance Tests on Full-Scale Gypsum Board Wall Assemblies

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TypeTechnical Report
Series titleInternal Report (National Research Council Canada. Institute for Research in Construction); no. IRC-IR-833
Physical description88 p.
AbstractThis report presents the results of 22 full-scale fire resistance tests conducted at the National Fire Laboratory on insulated and non-insulated full-scale gypsum board protected wall assemblies. Three assembly arrangements were studied: symmetrical installation 1x1 (one layer of gypsum board on both the exposed and unexposed sides), asymmetrical installation 1x2 (one layer of gypsum board on the exposed side and two layers of gypsum board on the unexposed side), and symmetrical installation 2x2 (two layers of gypsum board on each of the exposed and unexposed sides) on wood and on light weight steel studs. Two gypsum board types, Type X and regular, were considered. Three 12.7 mm thick regular gypsum boards were evaluated with different masses per unit area: 7.82 kg/m2 with no glass fibre in the gypsum core, 7.35 kg/m2 with glass fibre in the gypsum core and 7.27 kg/m2 with no glass fibre in the gypsum core. The insulations tested were glass, mineral and cellulose (blown dry and wet spray) fibres. The effects of resilient channel installation, insulation types, types and thicknesses of gypsum board, symmetrical and asymmetrical installation of gypsum board and stud types on the fire resistance rating of wall assemblies were investigated.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-14234
NPARC number20378755
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Record identifier04796605-f0cd-4d65-8c98-ff1b51f1cca6
Record created2012-07-24
Record modified2017-07-05
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