The Ontario Building Code | Support of Floor Joists
(a) capped with not less than 50 mm of solid masonry or concrete, or
(b) have the top course filled with mortar or concrete.
(2) Capping required in Sentence (1) is permitted to be omitted,
(a) in localities where termites are not known to occur,
(c) when the siding overlaps the foundation wall not less than 12 mm.