Ss 211 2 hour partition to steel deck.
2 hour fire rated cmu wall detail.
51 mm thickness can be used in the joints of a 4 hour wall.
Along with this built in fire protection.
Table 1 required fire wall fire resistance ratings ref.
Each sheet of 5 8 inch type x drywall is rated to resist fire for one hour so two layers will produce a two hour firewall.
For example for an 8 in.
B for group h 1 h 2 or continue reading detailing concrete masonry fire walls.
These blocks while allowing for safe means of egress and fire rating should no longer be looked at as just normal grey cmu.
Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.
Accepts no responsibility for proper application of the rated wall.
Concrete masonry wall.
203 mm limestone aggregate concrete masonry wall with a maximum control joint width of in.
Head of wall firestop system proform quick set fs 90 compound 1 side ul design u411 v438.
Expanded slag or pumice 4 7 4 5 4 4 4 2 4 0 3 8 3 6 3 4 3 2 3 0 2 7 2 5 2 1 1 9 1 5 a fire resistance rating between the hourly fi re resistance rating periods listed may be determined by linear in terpolation based on the equivalent thickness value of the concrete masonry unit.
Westbrook block is a proud producer of underwriters laboratories ul approved fire rated cmu in both light weight and normal weight densities in 2 3 and 4 hour configurations.
Ss 210 2 hour partition to concrete slab.
Offered by concrete masonry fire separation walls will help contain the fire until it can be controlled.
By including both hose stream test procedures.
Masonry grout reinforcing steel joint reinforcement anchors ties and accessories not depicted above optional.
1 groupfire resistance rating hr a b e h 4 i r 1 r 2 u3a f 1 h 3b h 5 m s 13 h 1 h 24b f 2 s 2 r 3 r 42 a walls shall not be less than 2 hour fire resistance rated where separating buildings of type ii or v construction.
Astm c 270 masonry mortar type m or s.
Ss 212 2 hour chase wall to steel deck.
For cored units the equivalent wall thickness is calculated by multiplying the percent solid by the wall thickness.
Put two sheets together on one side or use one sheet on each side of a wall.
Face shell or full mortar bedding as.
Ss 503 control joints for fire.
These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.
13 mm a 1 in.
Head of wall firestop system firestop sealant.
A 2 hour rating can be achieved by a wall with an equivalent thickness of as little as 3 1 5 inches when expanded slag or pumice is used or 4 1 2 inches when siliceous gravel is used as the aggregate.
