Where does moisture typically penetrate masonry walls?

Moisture typically penetrates masonry walls at cracks between the mortar and brick. This is due to the fact that these cracks create a pathway for water intrusion. Over time, even small gaps can allow moisture to seep into the wall system, especially when exposed to rain or high humidity. The joints between bricks are particularly vulnerable, as they may become compromised due to settling, temperature changes, or deterioration of the mortar itself.

Addressing maintenance at these crucial points can help prevent further moisture issues and deterioration within the wall. Other options, such as base penetration or intrusion through painted surfaces, can occur under certain conditions but are not as common or direct as the pathways created by cracks in the mortar joints. Understanding this concept is essential for effective masonry repair and water management strategies.