LEED AP Building Design and Construction (BD+C) Practice Exam

If the BUG rating method is used for uplight requirements, what must be done for light trespass requirements?

1. The same method must be applied.

2. Any method can be used.

3. Only calculation methods are applicable.

4. The method must depend on project size.

The correct answer is: Any method can be used.

When assessing light trespass requirements, it is important to understand that the BUG (Backlight, Uplight, and Glare) rating method is specifically designed to evaluate and mitigate issues related to uplight and backlight from exterior luminaires. However, for light trespass, different methods can be utilized. This is due to the nature of light trespass itself, which focuses on the unwanted illumination of neighboring properties rather than the source of that light. Thus, it allows project teams the flexibility to choose from various methods for assessing light trespass, which could include photometric calculations, field measurements, or qualitative assessments, as long as they meet the intent set by the LEED guidelines. The flexibility provided in selecting the method underscores the aim of accurately measuring and mitigating light trespass impacts based on the specific context and requirements of the project, rather than being strictly tied to the methods used for uplight assessment.