NCIDQ IDFX Practice Exam

Which construction method is often less expensive due to tolerating misalignments and sagging?

1. Flush overlay

2. Reveal overlay

3. Concealed overlay

4. Expanded overlay

The correct answer is: Reveal overlay

The choice of reveal overlay as the construction method that is often less expensive due to its tolerance for misalignments and sagging is accurate because this method allows for a visible gap between the components, which conceals any imperfections that may arise during assembly. These visible gaps can accommodate slight variations in alignment and levelness without compromising the overall aesthetic or function of the installation. In contrast, methods like flush overlay require precise alignment and have little to no tolerance for misalignments, which can lead to higher labor costs and material waste to achieve the desired level of finish. Similarly, concealed overlays also necessitate more precision in installation as they aim for a seamless appearance, which can also drive up costs. The expanded overlay, while allowing for some flexibility, is typically more associated with a particular design style rather than focusing solely on managing misalignments. Thus, reveal overlay is favored in projects where cost is a critical consideration, as it provides a practical solution for maintaining an attractive finish even when the underlying structure may not be perfectly aligned.