How many windows should be opened to comply with the standards?

To determine the correct approach to the number of windows that should be opened for inspection, it's important to focus on the concept of obtaining a representative number of windows. Inspectors aim to assess the condition and functionality of windows throughout a property without needing to open every single one. This approach is practical and aligns with industry standards which typically suggest inspecting a representative sample.

By opening one window per room, inspectors can effectively gauge overall window performance, look for signs of damage, check for proper operation, and evaluate any potential safety hazards. This method allows for an efficient inspection while still providing adequate information about the windows in the home.

The other methods proposed, such as opening all windows or selecting a random group, may not provide a comprehensive overview while still wasting time and effort. Furthermore, doing nothing unless issues are seen may lead to missed underlying problems that could affect the property's safety and value. Therefore, the chosen strategy carefully balances thoroughness and efficiency, ensuring a solid assessment of the home's window condition.