What is the purpose of weepholes?

Weepholes serve a crucial role in providing drainage for brick veneer, which is essential in preventing moisture buildup behind the cladding. When brick veneer is installed, it is important for there to be a pathway for any water that may infiltrate the wall system to exit. If water accumulates behind the brick, it can lead to various problems such as mold, damage to the structural elements, or deterioration of the masonry materials.

Weepholes are typically located at the bottom of the brick veneer, allowing gravity to facilitate the drainage of water that collects behind the veneer. This design feature ensures that moisture can escape and the wall remains dry, ultimately enhancing the longevity of the wall system and the building as a whole.

The other options, while related to construction and building systems, do not accurately reflect the primary function of weepholes. Enhancing ventilation, supporting structural weight, or directing water flow away from the foundation are considerations important to other aspects of building design, but they do not capture the specific drainage purpose that weepholes are intended for in the context of brick veneer walls.