Moisture in concrete roofs can corrode rebars and cause structural damage. Concrete is prone to cracking, crazing, scaling or spalling. Ponding water could present a series of complicated and expensive problems. The majority of all construction claims are moisture related.
Leaks in concrete roofs require coating the entire slab. Sectional repairs are often unsuccessful since moisture can penetrate bare concrete. Annual concrete roof maintenance involves inspecting for cracking, spalling and other visible problems. Be sure to perform annual inspections and repair any damage immediately. Blisters or delaminations should be cut off and repaired since they will leak over time.