About Sheet Metal Workers' & Roofers' Local 30

Local 30 was chartered as a local of the Sheet Metal Workers’ International Association in 1896. Following a merger with another trade union in the United States, the name of the union was changed to International Association of Sheet Metal, Air, Rail and Transportation Workers (SMART) in 2011. Currently, Local 30 has approximately 4500 members in the sheet metal, roofing and siding and decking industries in the Greater Toronto Area. Our skilled tradesmen and women work primarily in the ICI sector of the construction industry, both on job sites and in production shops.

Sheet Metal

Primarily, sheet metal workers fabricate and install ductwork for air handling systems. 


Roofers remove and install all types of roofing and apply vapour barriers, insulation and waterproofing.

Siding & Decking

Siders and deckers install any and all materials used for sheeting, cladding and roof decking.


Production workers manufacture and assemble production items in sheet metal shops.