What is the allowed height for air traffic control towers constructed of Type IIB materials?

• A. 75 feet
• B. 85 feet
• C. 90 feet
• D. 100 feet

Answer: (B)

The allowed height for air traffic control towers constructed of Type IIB materials is indeed 85 feet. This height limitation is established by the North Carolina Building Code, which differentiates various construction types based on their materials and fire resistance. Type IIB construction is notable for being non-combustible but may not have the same level of fire resistance as other types like Type I.

Given this classification, the code sets specific height limits for buildings to ensure safety and appropriate structural integrity, particularly in areas where aviation and related activities occur. The establishment of 85 feet as the maximum height for air traffic control towers crafted from Type IIB materials serves as a balance between functionality and safety, while also considering the structural capabilities of the material. Other height options like 75 feet, 90 feet, and 100 feet exceed these regulations for Type IIB constructions, emphasizing the importance of adhering to established codes to maintain safety in construction practices related to aviation facilities.