In Type VB construction without a sprinkler system, what is the maximum height allowed above grade plane?

• A. 85 feet
• B. 65 feet
• C. 50 feet
• D. 40 feet

Answer: (D)

In Type VB construction, which refers to buildings that are constructed using non-combustible materials but are not equipped with a sprinkler system, specific height limitations are established to enhance safety. The maximum height allowed above grade plane is 40 feet.

This limitation is crucial because Type VB structures are typically considered less fire-resistant compared to other types of construction that may include better fire ratings or active fire protection systems like sprinklers. By restricting the height to 40 feet, the North Carolina Building Code aims to mitigate fire risks and ensure more manageable conditions for evacuation and fire fighting efforts.

The other options present higher maximum height allowances, which are not applicable in the context of Type VB construction without sprinklers, as they could pose increased safety risks in the event of a fire. Therefore, adhering to the 40 feet limit is essential for maintaining safety standards within this construction type.