Fire Barrier Wall Definition

The supporting construction for a fire barrier shall be protected to afford the required fire resistance rating of the fire barrier supported.

Fire barrier wall definition.

However in general the life safety code does require smoke barriers to have a minimum hourly fire resistance rating while smoke partitions typically do not require any specific fire resistance rating. 4 1 fire barriers and fire walls fire barrier wall or fire partition wall an interior wall that serves to restrict the spread of fire but does not qualify as a firewall. The term barrier and partition are frequently thrown around to describe passive smoke and fire management systems. However when it comes to building codes the ibc is actually quite particular.

Firewalls are strong walls built to resist fire for up to four hours remaining erect even if other parts of the building. Such fire barriers shall be continuous through concealed space such as the space above a suspended ceiling 707 5 1 supporting construction. The facts about firewalls. 4 3 2 1 1 2 3 3ª 1 1 2 1 1 2 fire barriers having a required fire resistance rating of 1 hour.

Note that in this definition multiple stories can be included in the calculation for fire area if each floor ceiling assemblies separating each story are not rated horizontal. Ideally firewalls and fire barriers are used together to make a structure as safe as possible. In fact it will rarely extend through the roof or the underside of the floor below the structure. The fire area is the combined area of the floor in between fire walls fire barriers exterior walls or horizontal fire barrier assemblies within a building.

Fire barrier walls are typically continuous from an exterior wall to an exterior wall or from a floor below to a floor or roof above or from one fire barrier wall to another fire barrier wall having a fire resistance rating equal to or greater than the required rating for the application. In looking at the code requirements for fire barrier and fire partition the code for fire partitions is less strict. Fire barriers are continuous through concealed spaces. Shaft exit enclosure and exit passageway walls 11 other fire barriers 1 3 4 fire partitions corridor walls 1 0 5 1 3ᵇ 1 3ᵇ other fire partitions 1 0 5 3 4.

The fire resistance requirements are not spelled out as explicitly withinnfpa 101. A fire barrier wall refers to a type of fire rated wall assembly. Fire walls and fire barriershaving a required fire resistance rating greater than 1 hour. This type of structure is not self sufficient.

In reference to the term barrier the ibc is very specific that a barrier must have a minimum 1 hour fire resistance rating.