2 Hour Rated Ceiling Assembly
Determine the existing or planned building elements including structural.
2 hour rated ceiling assembly. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Urb concealed grid system and tile. Selecting the right ul fire rated assembly.
One of our current projects is a change of occupancy where the change will require a 2 hour rating between the main level a 2 occupancy and the r 2 occupancy above. 3 1 2 corrosion resistant 25 gauge 18 mils steel studs 24 610 mm o c. Establish the hourly rating needed to meet code requirements.
Additional layers of gypsum board are permitted to be added to any assembly. Rated steel column assemblies. Table 4 for two hour rated floor ceiling assemblies.
3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Elements of buildings the fire resistance rating classifies the ability of an assembly to confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies. The purple book ii.
Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. Fc series floor ceiling assemblies fc 201 2 hour floor ceiling assembly g514 detail no. Rated steel beam assemblies.
Two layers 5 8 15 9 mm densglass fireguard sheathing applied vertically to min. Addi tional tests are being conducted and the tables will be updated periodically. The addition of insulation to any one or two hour fire resistance rated floor ceiling or roof ceiling assembly is permitted provided that one additional layer of gypsum board of the same type specified in the design is added to the ceiling.