What is the tolerance range for masonry mortar joints after initial installation?

The tolerance range for masonry mortar joints after initial installation is typically specified as plus or minus 1/8 inch. This standard is important because it helps ensure both aesthetic qualities and structural integrity in masonry construction. Mortar joints that exceed this tolerance can lead to issues with moisture penetration, potential structural weaknesses, and an overall uneven appearance, which can affect the performance of the masonry system. Maintaining this tolerance is crucial for achieving a quality finish and fulfilling building codes and standards that dictate how masonry should be constructed.