Lateral Stability

(1)  Except as provided in Sentence (2), chimneys shall be braced in accordance with Subsection 4.3.2. to provide stability under wind loads.

(2)  A chimney need not be laterally braced provided,

    (a)   no horizontal outside dimension is less than 400 mm, and


    (b)   the chimney extends not more than 3.6 m above a roof or the masonry wall of which it forms a part.


Article Ontario Regulation 332/12 Building Code,   Information published by for educational purposes only.