Construction Types - Definitions TYPE I-A--Fire Resistive Non-combustible (Commonly found in high-rise buildings and Group I occupancies). 3 Hr. Exterior Walls* 3 Hr. Structural Frame 2 Hr. Floor/Ceiling Assembly 1 ½ Hr. Roof Protection TYPE I-B--Fire Resistive Non-Combustible (Commonly found in mid-rise office & Group R buildings).
TYPE III OR ORDINARY CONSTRUCTION OBJECTIVES At the conclusion of this module, the students will be able to: 1. Identify and describe the characteristics of ordinary (NFPA Type III) construction. 2. Identify the strengths and concerns for ordinary construction. 3.
board. One difference between a heavy timber type IV building and type III construction is that a heavy-timber type IV building does not have plaster walls and ceilings covering the interior wood framework. The details of type IV construction shall comply with the provisions of 602.4.1 through 602.4.7.