The Ontario Building Code | Sealants, Trim and Flashing
22.214.171.124. Sealants, Trim and Flashing
(2) Flashing used to protect openings="http://thehandyforce.com/windows/" title ="Window installer in Toronto">openings shall conform to Articles 126.96.36.199. and 188.8.131.52.
(4) All unfinished portions of the frame and other components of aluminum windows, doors or skylights in contact with the edges of masonry, concrete, stucco or plaster shall be protected with an alkali-resistant coating.
Section 9.8. Stairs, Ramps, handrails and Guards