In exposure protection for a residential fire near a neighboring structure, which action best exemplifies proper practice?

• A. Shutting down power to the incident building only.
• B. Opening the neighbor's windows to relieve smoke.
• C. Vent the exterior to relieve heat near the neighbor.
• D. Applying water to the exterior of a neighboring home to prevent ignition.

Answer: (D)

Exposure protection is about preventing the neighbor’s home from catching fire by reducing heat transfer to the exterior. The best move here is to apply water to the exterior of the neighboring home. Wetting those surfaces absorbs heat, slows radiant heat transfer, and helps keep the siding and any openings below ignition temperatures, creating a protective cooling barrier as operations continue.

Shutting down power to the incident building alone doesn’t shield the neighbor from heat and embers. Opening the neighbor’s windows can pull smoke and heat into the interior, increasing risk. Venting near the neighbor can spread heat and embers toward the exposure rather than protecting it.