The Ontario Sheet Metal Workers filed a jurisdictional dispute complaint in response to a grievance by the Carpenters claiming work related to the installation of sheet metal siding onto wood at a Sarnia job site.
The Ontario Labour Relations Board confirmed the employer's assignment of the work to the Sheet Metal Workers, finding that the nature of the material (sheet metal) was more significant than the base (wood), and that employer practice and efficiency favoured the Sheet Metal Workers.
The Board also made several procedural rulings, including excluding area practice evidence from the Carpenters due to a failure to provide adequate particulars, and refusing to terminate the proceedings after the Carpenters withdrew their underlying grievance.
