Which maintenance practice is essential for masonry structures?

Promptly addressing cracks is crucial for maintaining masonry structures because cracks can indicate underlying issues such as moisture infiltration, structural movement, or settlement. If left unattended, these cracks can widen over time, leading to more significant problems that may compromise the integrity of the structure. Timely repairs can prevent further deterioration, protect the aesthetic appearance, and enhance the longevity of the masonry.

Maintenance practices such as regular painting might help in preserving appearance but do not directly address structural integrity issues. Frequent replacement of stones is generally unnecessary unless specific stones are damaged, and undertaking structural demolitions is not a maintenance practice but a last resort to dealing with severe structural failures. Therefore, the focus should always be on early intervention for cracks to ensure that the structure remains sound and functional.