Humber/Ontario Real Estate Course 2 Exam Practice

What is another significant factor influencing window energy efficiency beyond the rating itself?

1. The size of the glass panes.

2. The brand of the window manufacturer.

3. Whether the window is double or triple-paned.

4. How well a window is installed.

5. The material used for the window frame.

6. The type of drapery or blinds used.

The correct answer is: How well a window is installed.

One significant factor influencing window energy efficiency is the quality of installation. While the rating of a window is important, if it is not properly installed, it can significantly decrease its energy efficiency. This could result in air leaks, moisture buildup, and overall poor insulation. Options A, B, C, and E may also impact energy efficiency to some degree, but they are not as significant as a proper installation. For example, the size of the glass panes may play a role in insulation but it is not as important as how well the window is installed. Similarly, the brand of the window manufacturer or the material used for the window frame may affect energy efficiency but they are not as crucial as proper installation. Option F about drapery or blinds is not as relevant to the energy efficiency of the window itself, as it mainly impacts the aesthetic and privacy aspect. Therefore, D is the best answer as it highlights an often overlooked but crucial factor when it comes to window energy efficiency.