Which construction type is characterized as fire resistive?

Type I construction is designated as fire resistive due to the materials and methods used in its design and construction. Buildings classified as Type I utilize non-combustible materials, such as reinforced concrete and steel, which provide a greater level of fire resistance compared to other construction types.

The emphasis on non-combustible materials means that structures built with this type are designed to withstand fire exposure for longer periods, thereby offering increased safety for occupants and firefighters alike. Fire-resistive features in Type I constructions can include fire-rated walls, floors, and roofs, which are constructed to slow down the spread of fire.

In contrast, the other construction types rely more heavily on combustible materials and generally have less fire resistance. For instance, Type III and Type V constructions typically include more wood and lighter materials, which are more susceptible to fire. Type IV, while using heavy timber, still does not provide the same level of fire resistance as Type I. Thus, the distinct characteristics of Type I construction clearly define it as fire resistive.