Outdoor exit discharge requirements include all of these factors EXCEPT:
A. They must be covered or kept clear where the chance of snow or ice exists.
B. They must not dead-end.
C. They must be straight, solid, and smooth.
D. They must be made of iron or steel.
The correct answer and explanation is :
Correct Answer: D. They must be made of iron or steel.
Explanation:
Outdoor exit discharges are an essential part of a building’s means of egress system. They provide a safe path for occupants to travel from the building to a public way or a safe area in an emergency, such as a fire or evacuation scenario. According to codes such as the International Building Code (IBC) and NFPA 101: Life Safety Code, specific requirements ensure these paths are safe, functional, and accessible. Let’s examine the choices:
A. They must be covered or kept clear where the chance of snow or ice exists.
✅ This is true. In areas where snow and ice are a concern, exit discharges must be kept free from accumulation to ensure they remain usable in emergencies. The path must remain safe and not slippery or obstructed.
B. They must not dead-end.
✅ Correct. An exit discharge should not end in a location that doesn’t provide a continuous path to safety. Dead ends create confusion and can trap occupants during an emergency, which is a violation of safety principles.
C. They must be straight, solid, and smooth.
✅ True. To prevent tripping and to allow safe and easy navigation — especially for those with mobility impairments — surfaces must be stable, firm, and slip-resistant. “Straight, solid, and smooth” reflects these requirements.
D. They must be made of iron or steel.
❌ Incorrect and the correct answer to the question. Building codes do not specify that exit discharges must be made of iron or steel. The material used can vary — it could be concrete, asphalt, or other code-compliant materials — as long as the surface is safe, durable, and accessible. There’s no material-specific requirement like iron or steel in the code.
Summary: The only option not aligned with code-based requirements is D, as material choice is flexible and not restricted to iron or steel. Safety, accessibility, and clarity of path are prioritized over specific materials.