California IDEX Practice Exam 2026 – All-in-One Guide to Master Your Certification!

The choice regarding asking the electrical engineer about light reflectance is the least important coordination for an interior designer when specifying new window coverings. This is because the primary focus of selecting window coverings typically centers around aesthetics, functionality, and how the coverings enhance the interior environment. While light reflectance can certainly play a role in energy efficiency and comfort, it is not as critical as ensuring the building’s exterior appearance aligns with the owner's preferences, or verifying that the replacement plans do not conflict with the mechanical systems in the building. Ensuring that the new coverings do not adversely affect the architectural integrity or performance of the building, such as glass heating issues, is also paramount. These considerations directly impact the feasibility and acceptance of the design changes, making them more urgent than querying the electrical engineer regarding light reflectance.