What is an Elevator Lobby Door?

What is an Elevator Lobby Door?

• A. Dwelling Unit
• B. Enclosed Court
• C. Draft Stop
• D. Elevator Lobby Door

Answer: (D)

Elevator lobby doors are the fire-protection doors that enclose and separate the elevator lobby from the surrounding spaces, such as the means of egress or adjacent corridors. Their purpose is to act as part of the fire barrier around the elevator lobby, helping to contain smoke and heat and to keep egress paths clear during a fire. These doors are typically required to be fire-rated and self-closing to effectively restrict the spread of smoke into escape routes and to prevent occupants from being trapped in the elevator lobby area. Other terms refer to different building concepts: a dwelling unit is a living space, an enclosed court is a type of exterior courtyard, and a draft stop is a component used to reduce air leakage around penetrations.

Elevator lobby doors are the fire-protection doors that enclose and separate the elevator lobby from the surrounding spaces, such as the means of egress or adjacent corridors. Their purpose is to act as part of the fire barrier around the elevator lobby, helping to contain smoke and heat and to keep egress paths clear during a fire. These doors are typically required to be fire-rated and self-closing to effectively restrict the spread of smoke into escape routes and to prevent occupants from being trapped in the elevator lobby area.

Other terms refer to different building concepts: a dwelling unit is a living space, an enclosed court is a type of exterior courtyard, and a draft stop is a component used to reduce air leakage around penetrations.