Firefighting Building Construction Roof Types

Type i fire resistive.

Firefighting building construction roof types.

Photo 7 shows a rubber membrane roof being installed on a noncombustible type ii building. All buildings shall be classified in one of the five construction types which are defined in sections 602 2 through 602 5. Buildings feature different types of external and internal construction and it is often the internal structure of a building that most determines how a conflagration should be contained. They often have exposed wood so there is no fire resistance note exceptions in the building code for fire resistance ratings of exterior walls and opening protection.

Building construction has a major impact on how firefighters battle building fires. Fire walls nonbearing exterior walls nonbearing interior partitions fire barrier walls shaft enclosures and openings in walls partitions floors and roofs are not related to the types of building construction and are regulated by other standards and codes. The most common types of roof systems in a commercial setting of type 3 construction include parallel cord truss and panelized roof systems. 7 the foreground shows the painted steel roof deck that is attached to steel bar joists.

The fire service must re examine operations related to construction types and create a new order of building classifications and groupings to help fire departments meet the challenges faced on. With fire resistive construction we see several factors that have the ability to assist firefighters. To classify for a specific construction type the building elements must have a fire resistance rating not less than that specified in table 601 and table 602. To identify if a building is of an older style firefighters should look for clues such as collar ties king s rows and arched lintels.

Types of building construction based on the combustibility and the fire resistance rating of a building s structural elements. Now coming into view in regard to building construction is green construction using renewable materials within and on the structure. A series of building photos representing typical roof construction types along with some key construction components will challenge your firefighters to name the type and to discuss the hazards.