What is a weep hole?

A weep hole is a small opening intentionally left in the mortar joints of brick or masonry walls, typically near the bottom.

Photo of Weep Holes in a wall
A photo of Weep Hole in a wall

What is a weep hole?

A weep hole is a small opening intentionally left in the mortar joints of brick or masonry walls, typically near the bottom and is used for:
Ventilation: To allow air to circulate within the wall cavities, helping to prevent moisture build-up, mildew, and dry rot. Proper airflow extends the life of the building materials inside the walls.
Drainage: Weepholes provide an discharge route for water that enters the wall cavity through rain, condensation, or other means. Without weep holes, water can accumulate inside the wall, causing structural damage over time.

Weep holes help your walls “breathe” and “drain,” protecting your home from moisture damage and mold. However, if left uncovered, they can also become entry points for pests like insects, rodents, and snakes.

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