OSB and Waferboard Material Standard (1) OSB and waferboard cladding shall conform to CSA O437.0, “OSB and Waferboard”. Article 9.27.10.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only Similar articles Continuity of the Air Barrier System End Bearing Length of Joists and Rafters Maximum Spans for Douglas Fir – Larch Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1) Counter Flashing