Fire barriers are more restrictive than fire partitions because the size of the protective opening is limited. All support structures should have a fire-resistant rating no less than that of the fire barrier they support. 1: A fire barrier (Section 707) must have minimum of 1 hour rating, but may extend to a four hour rating depending on the occupancy type. Continuity of the fire … h PA RTY sf, WAL L) dth FIRE of BA RRIE R, IB C 707 FIRE PA RTI TION, IB C 708 of GRAPHICS CONS T RU CTI ON & CONTINUITY f oundat i on of through wa roof, 30" exte rior wall not to exter ior wall. These walls will typically have a 2 to 3‐hour fire‐resistance rating. A fire barrier wall subdivides a floor or an area and is erected to extend from the floor to the underside of the floor or roof above. Fire barriers and fire partitions can be used to sub‐divide portions of the building contained by a firewall. However, these lower rated walls must also be built according to designs established by nationally recognized testing laboratories such as UL and in Fire Compartment 6. The minimum fire protection ratings of the protective openings on fire barriers are required to be 75% of the fire barrier resistant rating. See table 707.3.10. •Fire barriers •Fire partitions –No such assembly in NFPA •Smoke barriers •Smoke partitions. Openings in a fire barrier are limited to being no more than 25 percent of the length of the wall, with a maximum single opening size restricted to 120 square feet. 2: A fire partition (Section 708) must have a minimum of a 1/2 hour rating, and that is the exception for R Occupancies. 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. So, a 2-hour fire barrier … A fire barrier wall, also referred to as a fire partition, is a fire rated wall assembly which is not a fire wall. One of its main uses is rated corridor walls (where such rating is required for corridors). Fire barriers restrict the initial flow of heat within the area of origin, which provides building occupants with adequate time to evacuate to safe areas. Another would be separating two dwelling or sleeping spaces from each other. Fire Barriers – Vertical Continuity 9. 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 fire-resistance requirements are not spelled out as explicitly withinNFPA 101. Fire Barriers – Horizontal Continuity 7. w ondoo r.com 800-453-8494 FIRE WA LL, buildings IB C 706 (IN CL. FIRE TESTED WALL ASSEMBLIES •In accordance with ASTM E119/UL263 •Resist passage of heat and hot gases •Structural integrity during the test fire •Have something left at the end of the test. These types of walls can be attached to or supported by the adjacent structure. FIRE WALL vs. FIRE fr BARRIER a vs. requ FIRE PARTITION www. Fire Barrier 8. Note that “fire walls” is a specific type of rated wall different from fire barriers, fire walls (loosely spoken without regard to the actual definition), and fire partitions. • Fire and smoke barriers/partitions • Opening protectives – Fire/smoke doors – Dampers – Fire windows • Penetration protection – Firestopping. A Fire Partition is also a 1 HR rated wall, but is not used for smoke compartmentalization. The International Building Code (IBC) breaks out fire resistance-rated wall assemblies into three categories – 1) fire partitions, 2) fire barriers and 3) fire walls. Typically, the main difference is that a fire barrier wall is not structurally self-sufficient, and does not extend through the roof, or necessarily to the underside of the floor above. Codes and Standards 5.