Underwriter Labatories Fire Resistance Ratings Concrete Walls

International vault products are manufactured to the most stringent security standards including the burglary resistance standards set forth by underwriters laboratories.

Underwriter labatories fire resistance ratings concrete walls.

For finishes on the fire exposed side of the wall a time from table 8 is assigned to the finish. Underwriters laboratories is a nonprofit organization dedicated to advancing the ul mission through the discovery and application of scientific knowledge. We test assemblies to international standards establishing an hourly rating to provide evidence of compliance to code requirements. Suitable fire resistance rated constructions can be identified by using our.

Aci tms 216 1 14 code requirements for determining fire resistance of concrete and masonry construction assemblies lists the minimum equivalent thickness of single layer concrete walls to meet fire resistance ratings ranging from 1 to 4 hours see table on following page. These values are for solid walls or slabs. 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. Fire resistance rated designs are used to achieve code compliant installations where the building codes require hourly rated designs.

The fire resistance rating of reinforced and plain concrete walls floors and roofs depend on equivalent thickness of the element and can be found out using table 3.