Air is pulled in through one side of the home and exits the opposite side.
Vent in brick wall.
The surface area of the wall is approximately 1100 square feet while the total surface area of all the weep holes together is 18 square feet.
Weep holes in building exterior masonry walls brick or stone are a drainage system that is used in cavity wall or rain screen wall construction methods to get rid of water that has penetrated the outer wall skin or surface.
Brick vents are ideal for crawl space between floor or bath exhaust.
If you place them further up the wall you may find the draft inside the home to be excessive and there are better options to consider.
Always wear safety glasses.
These sturdy vents make an attractive accent through brick or block walls but are equally useful through any wall type.
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.