Vent Holes In Brick Walls

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.

Vent holes in brick walls.

This means the need to have air circulation to dry. The brick and blocklayers federation recommends that where windows exceed 2 4m in length that 1 or 2 vent holes are evenly spaced under the sill. Plasted or painted brick veneer. 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. Changing the location of the cable wire or pipe leaves a gaping hole through the brick wall where water dirt and debris enter the structure. The futility of trying to ventilate the cavity space behind the brick wall thru weep holes is illustrated by the following example. Vent openings or holes in brick other masonry veneer walls.

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. Where a brick veneer is plastered or painted the brick veneer exterior cladding is effectively a waterproof system. 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. 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.