What type of construction is classified as Type I?

Type I construction is classified as non-combustible construction. This classification indicates that the materials used in the building's structure have a high resistance to fire. In Type I structures, both the structural elements and exterior walls are made of non-combustible materials, which are designed to withstand high temperatures and prevent the spread of fire. This type of construction is typically found in high-rise buildings and commercial structures where fire resistance is critical for safety and longevity.

The reasoning for distinguishing Type I construction focuses on its ability to protect occupants and contents in the event of a fire. The non-combustible nature of the materials helps delay the onset of structural failure, allowing for more time for evacuation and fire suppression efforts. This makes Type I construction among the safest options in urban settings where fire hazards are a concern.

Other types of construction, such as Ordinary Construction, Heavy Timber Construction, and Wood Construction, involve materials that are more likely to ignite and burn, which can compromise the building's integrity more quickly in a fire scenario.