The Ontario Building Code | Panel Cladding
9.27.8.4. panel Cladding
(1) Plywood applied in panels shall have all edges supported.
(2) Not less than a 2 mm gap shall be provided between panels referred to in Sentence (1).
(3) Vertical joints in cladding referred to in Sentence (1) shall be protected with batten strips or caulking when the plywood joints are not matched.
(4) Horizontal joints in cladding referred to in Sentence (1) shall be lapped not less than 25 mm or shall be suitably flashed.
In Plain Language
Panel cladding of this material must be installed as set out in this article.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.