Structural members are protected non-combustible or limited combustible materials applies to which construction type?

Structural members are protected non-combustible or limited combustible materials applies to which construction type?

• A. Type II
• B. Type I
• C. Type III
• D. Type IV

Answer: (B)

The main idea is fire-resistive construction. In Type I construction, the structure is built with noncombustible materials and the structural members are protected with fire-resistant coverings or assemblies (protected noncombustible or limited combustible materials) to achieve higher fire-resistance ratings. This protection helps maintain structural integrity during a fire, which is the hallmark of fire-resistive design. Type II also uses noncombustible materials, but the emphasis is less on protecting structural members for fire resistance, whereas Type III, Type IV, and other types have different characteristics (exterior noncombustible walls with combustible interiors or heavy timber) that don’t fit this description.

The main idea is fire-resistive construction. In Type I construction, the structure is built with noncombustible materials and the structural members are protected with fire-resistant coverings or assemblies (protected noncombustible or limited combustible materials) to achieve higher fire-resistance ratings. This protection helps maintain structural integrity during a fire, which is the hallmark of fire-resistive design.

Type II also uses noncombustible materials, but the emphasis is less on protecting structural members for fire resistance, whereas Type III, Type IV, and other types have different characteristics (exterior noncombustible walls with combustible interiors or heavy timber) that don’t fit this description.