North Carolina Home Inspector Practice Exam

In which part of a double hung window is water damage most likely to occur?

1. Upper sash

2. Lower sash

3. Window frame

4. Sill

The correct answer is: Lower sash

Water damage is most likely to occur in the lower sash of a double-hung window for several reasons. The lower sash is positioned closer to the ground, making it more susceptible to water intrusion from rain or melting snow. Additionally, if the window is not properly maintained, debris such as leaves and dirt can accumulate in the window tracks, preventing proper drainage and allowing water to pool at the bottom. Another contributing factor is that the lower area of the window, including the sill and frame, often experiences stress from prolonged exposure to moisture and condensation. This increased moisture can lead to rot and deterioration of materials used in the lower sash area, which can compromise the integrity of the window over time. While the window frame and sill can also experience water damage, the lower sash is where the effects of moisture are most pronounced following periods of heavy rain or poor drainage conditions. This understanding emphasizes the importance of regular maintenance and inspection of these elements in ensuring the overall health and longevity of double-hung windows.