While you should never fill weep holes with solid material such as caulk wood or mortar you can put strips of fiberglass screen wire or scouring pad in.
Vent holes in brick walls.
Brick wall weep holes and recommends their use in.
This article explains the purpose of drainage openings rain screens in solid brick walls and in some brick veneer walls.
This means the need to have air circulation to dry.
In this case the drainage and ventilation of this large brick wall is left to 30 small weep holes spaced at 2 foot intervals along the bottom course of the wall.
This article discusses ventilation in the cavity behind brick or other masonry walls in veneer wall construction and the use of intermediate and wall top air vents or intermediate drains in some veneer wall designs.
The small vertical slots near the bottom of brick walls are known as weep holes and are used to allow any moisture from condensation to drain out of the wall as well as air to circulate.
Damaged brick veneer walls due to omission of or clogged weep openingsweep holes in brick walls.
The futility of trying to ventilate the cavity space behind the brick wall thru weep holes is illustrated by the following example.
Plasted or painted brick veneer.
Vent openings or holes in brick other masonry veneer walls.
Weep holes in brick walls provide rain screen drainage definition explanation of brick wall weep holes or weep openings.
Homeowners drill holes in brick walls for a variety of reasons including running cable electrical wires or pipes through the wall.