Required photographs during installation should document which of the following?

During installation, it is crucial to document firestop locations through photographs because these elements are vital for ensuring safety and compliance with building codes. Firestop systems are designed to prevent the spread of fire and smoke through openings in walls, floors, and ceilings where cables or conduits pass. Proper documentation helps in verifying that these safety measures are installed correctly and are accessible for future inspections.

Capturing images of firestop locations provides a reliable reference for both the installation team and future contractors or inspectors, allowing them to understand exactly where these critical components are situated. This is especially important for ensuring that maintenance or renovations do not compromise firestop integrity. In contrast, while design changes, client testimonials, and cost estimates may be part of the project management process, they do not carry the same level of importance for safety and compliance as documenting firestop locations.