#Type 3 building construction code

The most stringent of building types when it comes to fire-resistance rating requirements, a Type I building, including its roof, must be composed of noncombustible materials like concrete and steel. It’s a hefty chapter with various charts and footnotes to review, so we’ve put together the very basic characteristics of each building type here:

#Type 3 building construction code

The International Building Code spells it all out for us in Chapter 6: Types of Construction. So how do we determine the fire-resistance rating and codes associated with a structure? There are five different building construction types, each with fire-resistance ratings (the duration for which a passive fire protection system can withstand a standard fire resistance test) that apply to the structural frame, bearing and nonbearing walls, floor, and roof. In that same vein, a building made entirely out of combustible materials must be smaller. It makes sense that the more fire-resistant a building is, the larger and taller it is permitted to be. Building materials are, unsurprisingly, often at the center of discussions about fire damage, as we saw earlier this year following the destruction of a mid-construction apartment building in Raleigh, North Carolina.