What is the purpose of weep holes in brick veneer?

Weep holes in brick veneer are specifically designed to allow for the drainage of moisture that may accumulate within the wall assembly. The primary function of these openings is to provide an exit point for trapped rainwater or condensation that can occur behind the veneer. By facilitating drainage, weep holes help prevent water accumulation, which can lead to mold growth, deterioration of building materials, and other issues related to moisture damage.

In practice, weep holes are typically located near the bottom of the brick wall, aligned with drainage systems or areas that facilitate proper water flow away from the structure. This installation ensures that any moisture that does penetrate the veneer can escape, thus maintaining the integrity and longevity of the building. The functionality of weep holes is crucial to the overall health of a building's envelope, emphasizing their importance in modern carpentry and masonry practices.