What is the maximum spacing for weep holes on center?

The correct answer is that the maximum spacing for weep holes on center is 48 inches. Weep holes are essential components in masonry walls, as they allow for the drainage of moisture that may accumulate within the wall assembly. Proper spacing of weep holes is crucial to ensure that water has an exit point, which helps maintain the integrity of the wall and prevents moisture-related issues such as mold or structural damage.

Spacing weep holes at a maximum of 48 inches ensures that water can effectively escape at regular intervals, promoting better moisture control. This standard is derived from building codes and guidelines that emphasize the importance of drainage in preventing water infiltration and related problems.

Other options, such as spacing weep holes at 24, 36, or 60 inches, do not meet the established guidelines for effective drainage. Spacing weep holes too closely can lead to unnecessary perforations in the masonry, while spacing them too far apart can impede adequate drainage, increasing the risk of moisture retention within the wall assembly. Therefore, maintaining a distance no greater than 48 inches effectively balances these factors, making it the recommended practice for weep hole installation.