Sourcing moisture on baseboards from a master bathroom shower that is on the other side of this wall cavity. When there is visible damage occurring on the front side of this board means there is a lot more damage behind that is unseen. When opening wall cavities, proper engineering controls and barriers need to be place before cross contamination occurs through the duct system and the HVAC to the rest of the home. Mold Assessment, Palm Beach Gardens, FL 33410