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.
Ulc rated concrete block wall assemblies.
Fire rating up to 1 hour.
The international residential code ref.
Access our all new collection of sound tested fire rated wall assemblies.
Meets the requirements of astm e1966 astm e119 and astm e1399.
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.
The equivalent thickness of concrete masonry assemblies.
Concrete blocks of various designs caztc.
2 h rating based on noncombustible members framed.
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.
For finishes on the fire exposed side of the wall a time from table 8 is assigned to the finish.
Horizontal section bearing or nonbearing wall 1.
This is an alternative code recognized method to the underwriters laboratory ul listing service.
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.
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.
Ul product iq tm.
Refer to information under guide bxuvc.
