1. Flaking or chipping concrete
What to look for: Flaking or chipping of a concrete surface, typically in a parking garage or in another high-traffic area. Sometimes underlying metal rebar or rust stains will also be visible.
Why it happens: This chipping and flaking, known as concrete spalling, is usually a result of moisture penetration, which causes the rebar to rust and expand. Road salts and other harsh chemicals can also cause spalling.
Solution: Concrete spall repairs can include cleaning, smoothing and patching the affected areas, as well as resurfacing and applying a waterproof sealant to prevent future damage. Rebar assessments are also critical to ensure the underlying structure is sound.