Steel Design Series SDS-1

PART 1 – ULC AND cUL SPRAY-APPLIED FIRE-RATED DESIGNS
May 2017

This bulletin provides a summary of fire-rated designs featuring spray-applied fire-resistive materials (SFRM) which are valid for use in Canada and are free from ‟load restriction”.

 

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Description

This bulletin provides a summary of fire-rated designs featuring spray-applied fire-resistive materials (SFRM) which are valid for use in commercial, institutional, light industrial and residential buildings in Canada, and are free from ‟load restriction”. They include selected designs listed in the Underwriter Laboratories of Canada (ULC) Directory and those listed in the Underwriter Laboratories Inc. (UL) Directory as cUL Designs.

Tables are provided to facilitate the selection of rated floor assemblies (consisting of sprayed or bare deck supported on beams or joists), roof assemblies and columns (wide-flange or HSS). An example is also presented to illustrate the calculation of the adjusted SFRM thickness.