Which building construction code includes buildings where the exterior walls and the floors and roof are constructed of masonry or fire resistive materials having a fire resistance rating of not less than two hours?

Which building construction code includes buildings where the exterior walls and the floors and roof are constructed of masonry or fire resistive materials having a fire resistance rating of not less than two hours?

• A. Code 6
• B. Code 3
• C. Code 1
• D. Code 5

Answer: (A)

Understanding how building construction types are classified by fire resistance helps explain this item. When exterior walls and the floors and roof are built of masonry or other fire-resistive materials with a minimum two-hour fire rating, the structure is designed to resist fire long enough to protect occupants and allow suppression efforts. That level of fire resistance across the main structural elements marks a high-protection construction category, which is why this description fits the designated category in common construction classifications used for risk assessment and insurance. The idea is that this combination provides a substantial barrier to fire spread and maintains integrity for a longer period, compared with categories that use lighter materials or offer lower fire ratings.

Understanding how building construction types are classified by fire resistance helps explain this item. When exterior walls and the floors and roof are built of masonry or other fire-resistive materials with a minimum two-hour fire rating, the structure is designed to resist fire long enough to protect occupants and allow suppression efforts. That level of fire resistance across the main structural elements marks a high-protection construction category, which is why this description fits the designated category in common construction classifications used for risk assessment and insurance.

The idea is that this combination provides a substantial barrier to fire spread and maintains integrity for a longer period, compared with categories that use lighter materials or offer lower fire ratings.