The Ontario Building Code | Flashing for Weep Holes in Masonry Veneer/Masonry Walls Flashing for Weep Holes in masonry Veneer/masonry Walls

(1) Flashing beneath weep holes in cavity walls and masonry veneer/masonry back-up walls shall,

(a) be bedded not less than 25 mm in the inside wythe,

(b) extend to not less than 5 mm beyond the outer face of the building element below the flashing, and

(c) be installed with a nominally horizontal slope toward the outside wythe.