What is a common issue with windows that may be flagged during an inspection?

Fogging between panes is a significant issue that inspectors often flag because it indicates a failure in the window's sealing. When double or triple-pane windows lose their seal, moisture can enter the space between the panes, leading to condensation and fogging. This not only affects the window's aesthetic appeal but can also reduce energy efficiency as the insulating properties of the window diminish. Furthermore, fogging can be a precursor to other issues, such as mold growth within the window assembly.

The presence of fogging suggests that the window may need to be repaired or replaced to restore its effectiveness and appearance. This makes it a critical observation during an inspection, as it directly relates to the performance of the window and the comfort of the home’s occupants.