Concrete Platform Over Existing Floor Fire

There is an existing 5 1 2 concrete slab between the floors requiring the separation can t seem to find in code whether this might be an acceptable separation as most of the data i m seeing seems to show we should be above 1 hr with that thickness of concrete.

Concrete platform over existing floor fire.

Single layer concrete walls floors and roofs. The equivalent thickness of different types of concrete masonry is provided in the following. Fire endurance of structures figure 5 shows the effect of fire on the resistance of a simply supported reinforced concrete. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.

An even concrete slab is very important if you plan to build anything on your slab or lay down any type of outdoor tile. Prior to the invention of this innovative unique product abandoned core holes were often left unsealed destroying the integrity of the fire rated barrier. The duration of time that an element such as beam column wall floor or roof can endure. Fire resistance rating or fire rating is defined as the duration of time that an assembly roof floor beam wall or column can endure a standard fire as defined in astm e 119 3.

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. Basements without furnaces or water heaters can. The condition of the existing slab is the primary factor that determines how long the new concrete will last. False floors also known as floating floors are not permanently attached to the floor or walls.

In existing construction these core holes are often abandoned when sleeves or conduits in a concrete floor or fire rated concrete barrier are removed. How to install a false floor over a basement slab. We have a project where an architect is questioning if a 4 1 2 slab is thick enough to provided with a code perscribe fire rating of 2 hours. Fire resistance of concrete is the ability of concrete to withstand fire or to give protection against fire.

You can purchase concrete leveling compounds at home improvement retailers to level out the floor. A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. This involves the ability of concrete structural element to continue perform a specific structural function or confine fire or both. Structural function or both.

Working on an existing renovation project in nyc that requires a 1 hr fire rating between occupancies. Concrete floor fire resistance rating eyanovich structural op 2 jun 08 17 51. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.