The Ontario Building Code | General

9.27.1.1. General

(1) Where lumber, wood shingles, shakes, fibre-cement shingles, planks and sheets, plywood, OSB, waferboard, hardboard, vinyl, aluminum and steel, including trim and soffits, are installed as cladding on wood frame walls exposed to precipitation, the cladding assembly shall comply with,

(a) Subsections 9.27.2. to 9.27.12., or

(b) Part 5.

(2) Where stucco is installed as cladding on wood frame or masonry walls exposed to precipitation, the cladding assembly shall comply with,

(a) Subsections 9.27.2. to 9.27.4., and Section 9.28., or

(b) Part 5.

(3) Where masonry serves as cladding on wood frame or masonry walls exposed to precipitation, the cladding assembly shall comply with,

(a) Subsections 9.27.2. to 9.27.4., and Section 9.20., or

(b) Part 5.

(4) Where asphalt shingles are installed as cladding on wood frame walls exposed to precipitation, the cladding assembly shall comply with,

(a) Subsections 9.26.7. and 9.27.2. to 9.27.4., or

(b) Part 5.

(5) Where an exterior insulation finish system is installed as cladding on wood-frame, masonry, cold-formed steel stud or cast-in-place concrete walls exposed to precipitation, the cladding assembly shall comply with,

(a) Subsections 9.25.5., 9.27.2. to 9.27.4. and 9.27.13., or

(b) Part 5.

(6) Where cladding materials or systems other than those described in Sentences (1) to (5) are installed, or where these are installed on substrates other than those identified in Sentences (1) to (5), the cladding materials or systems and their installation shall comply with Part 5.

9.27.2. Required Protection from Precipitation