2 Hr Fire Rated Block Wall

Figure 3 shows the types of control joints.

2 hr fire rated block wall.

203 mm limestone aggregate concrete masonry wall with a maximum control joint width of in. 2 hour interior wall assembly ul design no. 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. 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.

Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. Movement control joints in fire rated wall assemblies should also be rated. A fire resistance rating is based on a fire resistance period and usually given in half hour or hourly increments. It is also referred to as a fire rating fire resistance classification or hourly rating.

2 hour exterior wall assembly ul design no. These listings are short summaries to serve as a. Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies. For example for an 8 in.

2 52 3 80 4 78 5 60 e. 6 usg fire resistant assemblies test certification test conditions and fire and sound tested assemblies listed in this selector are based on characteristics properties and performance certificationof materials and systems obtained under controlled test conditions as set forth in the appropriate astm standard in effect at the time of test. Double the number of type x sheets on the wall for a simple system installed over fire resistant fiberglass insulation. 51 mm thickness can be used.

Linear interpolation from table 721 3 2 of the florida building code for exposed finish block mix 55 limestone 45 siliceous aggregates. Put two sheets together on one side or use one sheet on each side of a wall. 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. 13 mm a 1 in.

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. Fire rating 1 hr. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.