The Ontario Building Code | Joints between Tiles and Bathtub
9.29.10.5. Joints between tiles and Bathtub
(1) The joints between wall tiles and a bathtub or shower shall be suitably caulked with material conforming to CAN/cgsb-19.22-M, "Mildew Resistant Sealing Compound for Tubs and tile".
Section 9.30. flooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring
9.30.1. General
In Plain Language
Joints between tile and a bathtub must be treated as set out in this article, sealing this common gap where water can otherwise get behind the tile.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.