Assertion: brick's hole | /r/HasProperty | left at the base of the brick veneer
Facets:
value: to drain moisture
type: PURPOSE
Source sentences:
text: As clay-based brick is usually not completely waterproof, the structural wall will often have a water-resistant surface (usually tar paper) and weep holes can be left at the base of the brick veneer to drain moisture that accumulates inside the air gap.