an opening for drainage in veneer joints or in the structural components supporting the veneer.

Voids between the bricks on the first row that contact the foundation. These voids in the vertical joints are in place to allow any condensation that may collect on the inside of a brick wall to escape. These weep holes may also be located above a window.

Number of small holes in a wall allowing water to drain from it. This makes the walls able to withstand water pressure.

Slots of holes in the sill member of the window frame to provide outdoor release of infiltrated water.

Small holes used to permit moisture to drain that has gathered inside a building component.

holes built in or cut into retaining walls in which water will seep through to alleviate the damaging effect of the water to the wall; holes found in the bottom of stucco weep screed; the openings at the bottom edge of windows that allow water to drain out of the window channel (weep holes are designed to allow the relief of moisture or water)

Small openings whose purpose is to permit drainage of water that accumulates inside a building component (e.g., a brick wall, skylight frame, etc.)

Small holes in storm window frames that allow moisture to escape

Small openings designed to allow water to escape that might otherwise accumulate in a window's sill.

Openings in flashings, etc., to permit drainage and reduce pressures. (Usually field drilled holes)

Small holes in a retaining wall purposely installed to drain off excess water, preventing water from building up behind the wall.

Small holes made in a wall, allowing water to drain from it and making the walls able to withstand water pressure.

Spaces or small openings left in a masonry wall to allow water to drain from behind the wall.

Openings made in mortar joints to facilitate drainage of built-up water. Home Improvement Encyclopedia

Small holes in a retaining wall or other wall where it may be necessary to drain off excess water to avoid pressure build-up.