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.
Ulc rated concrete block wall assemblies.
Horizontal section bearing or nonbearing wall 1.
Meets the requirements of astm e1966 astm e119 and astm e1399.
The rated fire resistive periods for block walls can be determined by knowing this information and complying with table 721 1 2 item number 3 of the international building code ibc ref.
For finishes on the fire exposed side of the wall a time from table 8 is assigned to the finish.
2 h rating based on noncombustible members framed.
Ul product iq tm.
The result t ef is then added to the concrete masonry wall equivalent thickness t e and used in table 1 to determine the wall s fire resistance rating i e the equivalent thickness of concrete masonry assemblies t ea t e t ef.
These blocks while allowing for safe means of egress and fire rating should no longer be looked at as just normal grey cmu.
This is an alternative code recognized method to the underwriters laboratory ul listing service.
Ul 2079 class ii and iii movement 1 2 or 3 hour fire and hose stream.
Ulc standards develops and publishes standards and specifications for products having a bearing on fire life safety and security crime prevention energy efficiency environmental safety security of assets and facilities live working and workplace safety.
Fire rated assemblies are tested and certified in their entirety.
5 contains similar requirements but with a minimum stc rating of 45 db when tested in accordance with astm e90 for walls and floor ceiling assemblies separating dwelling units.
The equivalent thickness of concrete masonry assemblies.
You can access all current ul fire resistance rated designs using our free product iq tm on line search tool available at product iq is free to use and only requires a simple one time registration.
Fire rating up to 1 hour.
Access our all new collection of sound tested fire rated wall assemblies.
Concrete blocks of various designs caztc.
