A construction defect, or defective construction, typically occurs when a builder, contractor, or subcontractor fails to follow the permitted plans, specifications, or applicable building code or regulations, resulting in a condition that reduces the value of a home and may lead to additional property damage – such as when a poorly built roof, deck, or other exterior component allows rainwater into the building where it causes rot, mold, and other damage. Some construction defects involve defective products themselves.
