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PropertiesFire protection
Floor/ceiling assemblies using the Hambro system have been tested under restrained and unrestrained conditions by independent laboratories. Fire resistance ratings have been issued by Underwriters Laboratories Inc. (UL) and by Underwriters Laboratories of Canada Inc. (ULC) covering gypsum board, acoustical tile and spray-on protection systems. Reference to these published listings should be made in detailing ceiling construction. Check your UL and ULC directory for the latest updating of these listings. | | | |
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