Final answer:
Weep holes are the openings in the bottom row of brickwork that allow moisture to escape, preventing water damage and related problems within brick walls.
Step-by-step explanation:
The openings in the bottom row of brickwork that provide an exit for moisture are called weep holes. These holes are designed to allow water that has entered the wall due to rain, condensation, or other means, to escape, thereby preventing water from accumulating inside the wall cavity.
Weep holes are an important aspect of construction as they enhance the longevity of a building's brick walls by preventing water damage, mold, and other moisture-related issues.
The opening in the bottom row of brick that provides an exit for moisture is called a weep hole. Weep holes are small openings in masonry walls that allow water to drain out.
They are typically located at the bottom of the wall to allow any moisture that gets trapped in the wall to escape and prevent damage to the structure.