Which item is identified by a 45° inspection cut?

• A. Exterior wall color
• B. Number of occupants
• C. Under roof obstructions (foam, drop ceiling, etc.)
• D. Location of utilities outside the building

Answer: (C)

A 45-degree inspection cut is used to peek into the attic space from the edge of the planned roof opening to identify anything that could block or complic the ventilation path. By beveling the cut at roughly 45 degrees, you gain a view into the space beneath the roof without fully opening it, so you can spot under‑roof obstructions like foam insulation, a dropped ceiling, wiring, or other materials. Knowing what’s there lets you choose the safest and most effective location for the final vent cut and helps you avoid hitting hidden barriers or creating hazards. Exterior wall color, the number of occupants, or the location of utilities outside the building don’t reveal interior conditions or obstructions in the roof space, so they’re not identified by this inspection cut.