What type of construction is characterized by exterior walls made of noncombustible materials and interior floors and walls made of combustible materials?

The scenario described aligns with Type 3 construction, often referred to as "Ordinary Construction." In this type of construction, the exterior walls are made of noncombustible materials, such as masonry or concrete, while the interior floors and walls consist of combustible materials like wood. This combination reflects a key principle of Type 3 construction, which seeks to create a balance between fire safety and cost-effectiveness.

Type 3 buildings typically present a unique challenge for fire inspectors and firefighters due to the presence of combustible interiors that can contribute to rapid fire spread once ignition occurs. Understanding this type of construction is crucial for fire prevention strategies, inspection protocols, and determining appropriate firefighting tactics, as the exterior can contain fire while the combustibles within present significant risks.

In contrast, other construction types emphasize different material combinations and fire resistance characteristics. For instance, Type 1 construction is entirely noncombustible and designed to provide maximum fire resistance, while Type 2 construction also uses noncombustible materials but may allow for some combustible elements in interior components. Type 4 construction, on the other hand, utilizes heavy timber construction and has specific characteristics distinguishing it from the ordinary qualities of Type 3. This understanding helps in assessing fire risk and implementing sound