Thickness Of Masonry Walls Surrounding The Smoke Chamber

(1)  The thickness of masonry walls surrounding the smoke chamber shall be not less than 190 mm at the sides, front and back, except that the portions of the back exposed to the outside may be 140 mm thick.


Article Ontario Regulation 332/12 Building Code,   O. Reg. 332/12: BUILDING CODE ( © Queen’s Printer for Ontario, 2021