How Ontario Building Code (OBC) Requirements Shape Cladding Material Selection
Under the 2024 Ontario Building Code (O.Reg. 163/24), buildings required to be of noncombustible construction face strict limits on cladding materials. Combustible cladding is generally only permitted where the building is not more than three storeys, or is sprinklered throughout — and even then, the exterior wall assembly must be tested and pass under CAN/ULC-S134, […]





