The Ontario Building Code | Installation
9.26.17.1. installation
(1) Concrete roof tiles shall be installed according to CAN/CSA-A220.1-M, "installation of Concrete Roof tiles".
9.26.18. Roof Drains and Downspouts
9.26.17.1. installation
(1) Concrete roof tiles shall be installed according to CAN/CSA-A220.1-M, "installation of Concrete Roof tiles".
9.26.18. Roof Drains and Downspouts
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