About this chapter: Chapter 6 establishes five types of construction in which each building must be categorized. This chapter looks at the materials used in the building (combustible or noncombustible) and the extent to which building elements such as the building frame, roof, wall and floor can resist fire.

The 5 types of construction classifications are: Type I, Type II, Type III, Type IV, & Type V. Every building you see has been classified into one out of five types of construction. Chapter 6 of the International Building Code (IBC) outlines the requirements to correctly classify a building by its type of construction.

Building elements do not contain concealed spaces and contain systems that prevent a fire from the exterior into unprotected openings. TYPE VA (ISO 1): A wood-framed building.

Buildings and structures erected or to be erected, altered or extended in height or area shall be classified in one of the five construction types defined in Sections 602.2 through 602.5.

Type IV-HT (Heavy Timber) construction is that type of construction in which the exterior walls are of noncombustible materials and the interior building elements are of solid wood, laminated heavy timber or structural composite lumber (SCL), without concealed spaces or with concealed spaces complying with Section 602.4.4.3.

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 table noted herein provides a comparison of acceptable construction types as defined in NFPA Standard 220 and the International Building Code (IBC). Explore a searchable database of US construction and building code. Code regulations are …

There are a total of nine types of construction that span from noncombustible types to combustible types of construction, with varying degrees of each in between that are based on fire resistance.

Dec 24, 2020 · The IBC’s Five Types of Construction. Type I: Fire Resistive. The most stringent fire-resistive standards are applied to high-rise buildings, defined as those over 75 feet tall in the IBC (that would typically be a building with six or more stories).