Concrete Block Fire Rating Ulc

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Concrete block fire rating ulc.

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. This standard is critical for fire resistance rating acceptance as it is required by the national building code of canada nbc. Of concrete masonry to fire is well established by extensive testing to be a function of the type of aggregate used in the manufacture of the masonry units and their equivalent thickness. Aci 206 provides the definition of these two terms.

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 and other areas. You may also like innovation in the wood finishing industry. These blocks while allowing for safe means of egress and fire rating should no longer be looked at as just normal grey cmu. The requirements of astm c55 astm c73 astm c90 or astm c744 refs.

Include equivalent thickness of. Fire endurance and fire resistance. The standard used for fire resistant ratings is can ulc s101 fire endurance tests of building construction and materials. Concrete masonry is widely specified for fire walls and fire barriers because concrete masonry is noncombustible provides durable fire resistance and is economical to construct.

2 3 governs materials and assemblies used for structural fire resistance and fire rated separation of. Walls composed of hollow concrete masonry units having a nominal thickness of 8 inches or greater and having a fire resistance rating of at least 2 hours shall be classified as 4 hours when the hollow spaces are completely filled with perlite or vermiculite grout or a material such as expanded slag clay shale slate or sand. Fire rated assemblies are tested and certified in their entirety. Fire ratings of concrete and masonry structural elements considers two factors.

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. 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. Rating is 1 h when combustible members are framed into wall. 2 h rating based on noncombustible members framed into wall.

13 14 6 15 shall apply.