2 Hour Floor Ceiling Assembly
Face layer 1 2 12 7 mm toughrock fireguard c gypsum board or 1 2 12 7 mm densarmor.
2 hour floor ceiling assembly. Fc1 fc2 fc3 fc6 fc7 fc8 2 hour floor ceiling assembly. D925 unres nwc z106hy. Fc 202 2 hour floor ceiling assembly.
Wood and gypsum floor ceiling and wood roof assemblies 1 hour floor ceiling assembly. D985 unres 4 1 2 nwc z106h. Concrete with cellular steel 3 hr.
Fc4 fc9 1 hour wood rafter floor assembly. D985 unres 4 1 2 nwc mk6g. D985 res 4 1 2 nwc z106hy unprotected future floor ceiling nwc fluted cellular ul d925.
Fw1 fw2 fw3 fw4 fw5 fw6 fw7 fw8 fw9 fw12 2 hour wood rafter floor assembly. 4 1 2 nwc 2hr only fluted. I joists are required to comply with the latest version of astm d5055 standard specification for establishing and monitoring struc tural capacities of prefabricated wood i joists.
D985 unres 4 1 2 nwc all. D985 res 4 1 2 nwc mk6gf. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.
D925 unres nwc mk6gf. And 6 from floor or ceiling. However the gypsum association manual has a new note for certain assemblies.