A weep vent is a small opening in brick/block walls that is designed to let out moisture, promote airflow, balance wall air pressure, prevent damp, and maintain building health.
Weep vents are crucial in preventing issues like excess water from condensation, rising damp, mould, mildew, and structural weaknesses caused by decay of mortar, bricks, and blocks.
Not all walls need weep vents, but common types like cavity walls should have them to prevent problems like rising damp, mould, and internal dampness.
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