Hardboard Cladding Material Standards
(1) Factory-finished hardboard cladding shall conform to CAN/CGSB-11.5M, “Hardboard, Precoated, Factory-Finished, for Exterior Cladding”.
(2) Hardboard cladding that is not factory finished shall conform to Types 1, 2 or 5 in CAN/CGSB-11.3-M, “Hardboard”.
Article 9.27.9.1. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only