The Ontario Building Code | Clearance
9.27.10.4. Clearance
(1) At least a 3 mm clearance shall be provided between OSB and waferboard cladding and door or window frames.
9.27.11. Metal
9.27.10.4. Clearance
(1) At least a 3 mm clearance shall be provided between OSB and waferboard cladding and door or window frames.
9.27.11. Metal
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