What could be a consequence of improper flashing installation?

Improper flashing installation can lead to significant issues, primarily by increasing the risk of water infiltration. Flashing is designed to direct water away from critical areas of a building’s exterior, such as around windows, doors, and roof joints. When flashing is not installed correctly, water can seep into these vulnerable areas, potentially causing damage to the building structure, including mold growth, wood rot, and deterioration of insulation. Additionally, water infiltration can lead to costly repairs and decrease the overall durability and lifespan of the building.

The other options suggest benefits or neutrality that would not occur with improper flashing. Improved insulation would not result from faulty flashing; instead, insulation may become less effective if water damages it. Enhanced structural integrity is dependent on proper moisture control, which is undermined when water intrudes due to improper flashing. The idea that there would be no impact at all is also incorrect because building integrity is structurally compromised when water penetration occurs, leading to various forms of subsequent damage.