2 Hour Fire Rated Cmu Wall Detail

Masonry grout reinforcing steel joint reinforcement anchors ties and accessories not depicted above optional.

2 hour fire rated cmu wall detail.

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. Face shell or full mortar bedding as. Ss 211 2 hour partition to steel deck. 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. Head of wall firestop system proform quick set fs 90 compound 1 side ul design u411 v438. Accepts no responsibility for proper application of the rated wall. Double the number of type x sheets on the wall for a simple system installed over fire resistant fiberglass insulation.

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. B for group h 1 h 2 or continue reading detailing concrete masonry fire walls. Put two sheets together on one side or use one sheet on each side of a wall. These blocks while allowing for safe means of egress and fire rating should no longer be looked at as just normal grey cmu.

13 mm a 1 in. By including both hose stream test procedures. 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.

51 mm thickness can be used in the joints of a 4 hour wall. For example for an 8 in. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

25 mm thickness measured perpendicular to the face of the wall of ceramic fiber in the joint can be used in walls with fire resistance ratings up to 3 hours while a 2 in. Ss 212 2 hour chase wall to steel deck. Two hour rated walls subjected to the hose stream test of astm e 119. 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.

For cored units the equivalent wall thickness is calculated by multiplying the percent solid by the wall thickness. 203 mm limestone aggregate concrete masonry wall with a maximum control joint width of in. Along with this built in fire protection. Astm c 270 masonry mortar type m or s.

Ss 503 control joints for fire.