What is the recommended spacing for weep holes in exterior walls?

The recommended spacing for weep holes in exterior walls is every 24 inches. Weep holes are essential for allowing moisture that has penetrated the wall system to escape, preventing water accumulation and potential damage to the structure. Spacing weep holes at this interval ensures adequate drainage while maintaining the integrity of the wall.

This specific placement also complies with building codes and industry practices that seek to balance effective moisture management and structural durability. Weep holes should be placed above flashing systems and aligned with the drainage plane, ensuring that trapped moisture can exit without obstruction.

Other spacing options might not provide sufficient drainage capability, which could lead to moisture-related issues within the wall assembly. By following the recommended 24-inch spacing, builders can better protect the integrity of the walls and enhance the longevity of the building.