Offsetting of Joints Wood Shingles and Shakes

(1)  In single-course application, joints in succeeding courses shall be offset at least 40 mm so that joints in any two of three consecutive courses are staggered.

(2)  In double-course application, joints in the outer course shall be offset from joints in the under-course by not less than 40 mm, and joints in succeeding courses shall be offset not less than 40 mm.

Article 9.27.7.4. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only