2 Hour Fire Barrier Wall Construction

Lateral shear movement option available.

2 hour fire barrier wall construction.

If a fire rated door or other fire barrier component were modified the rating is no longer maintained. Fire safety building assembly s the period of time the assembly will serve as a barrier to the spread of fire and how long fire resistance the assembly can function structurally after it is exposed to a fire of standard intensity as defined by astm e119. Occupancies may be 2 hour fire walls in type iii and iv construction are required to be constructed of non. Sometimes this is also called the assembly s fire endurance.

Fire walls and fire barriershaving a required fire resistance rating greater than 1 hour. For separating group s 1 fire areas from group s 1 fire areas a 3 hour rated fire barrier is required. Building and structural firewalls in north america are usually made of concrete concrete blocks or reinforced concrete older fire walls built prior to world war ii used brick materials. 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.

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. A building s use and occupancy classification is the category in the ibc that is assigned to each building or portion thereof that reflects unique hazards sanitation egress and other code related parameters associated with that category. Fire barrier walls are typically constructed of drywall or gypsum board partitions with wood or metal framed studs. The supporting construction for a fire barrier shall be protected to afford the required fire.

Fb 17 has been tested and proven to provide up to 3 hour fire endurance rating for floor joints and up to 2 hour rating for wall joints minimizing smoke passage. Fire resistance ratings are expressed in the number of minutes or hours a structure can withstand a fire simulation test. Blanket type fire barrier for floor and wall expansion joints. For the 2 hour fire barrier the wall construction must also pass the testing agency test.

Use steel studs and two layers of 1 2 inch type c drywall on each side of the studs for a two hour fire rating on an interior wall. Mount a 1 1 2 inch fiberglass barrier inside the studs. According to the engineered wood association a one hour rating indicates that a wall constructed in a manner similar to the one tested will contain flames and high temperatures and support its full load for at least one hour after the fire begins. Available in 10 lengths and engineered for simple splicing.

Penetrations penetrations through fire walls such as for pipes and cables must be. Building code discussion group unavailable. Use special fiberglass rated for use in firewalls. Building code discussion group.