Subgrade foundation walls are subjected to ground moisture and rainwater collecting against the walls. This moisture seeps through the porous basement walls and into the home.
Moisture has collected on the floor and damaged the existing tile. Staining on the wood studs also indicates that moisture has been seeping through the walls as well.
Efflorescence is the white powdery substance on the basement walls. It is a result of moisture seeping through the foundation walls and pulling the minerals in the block with it. As the moisture evaporates into the air, the crystallized minerals are left behind. This is a clear indicator that moisture is a concern in the space.
Moisture staining on the walls and floors tells us that water has been seeping into the basement and is evaporating, increasing the relative humidity in the space. Upstairs, homeowners may notice musty odors or excess humidity indicating that moisture is a concern in the basement.
This is a walkout basement, and the homeowners noticed that moisture was entering the basement and causing some damage.