In the last five years, the detection of concrete deterioration has become an industry unto itself. The source of the problem is primarily attributable to the brutal environment of South Florida, particularly the coast with the humidity and calcium chloride (salt).
When the paint surface of the building is not waterproof, the concrete absorbs the moisture and the salt from the air. This causes the steel reinforcing bars to rust. When the steel rusts, it expands which causes the concrete to break away from the building, commonly called sapling.