1 Hour Roof Assembly

Lumber shall be identified by the grade.

1 hour roof assembly.

3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. C roof ceilings45 51 steel framed including steel bar joist framing steel c joist framing steel truss and steel roof deck. In fact there is no. Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly.

No minimum joist size is given except that it needs to be adequate for structural loads. Fw1 fw2 fw3 fw4 fw5 fw6 fw7 fw8 fw9 fw12 2 hour wood rafter floor assembly. 1 hour rating category illustration wh tsc fca 60 08 floor or roof suspended ceiling fixtures note 1 24 oc min 12 depth steel runner system dropped 7 1 2 1 layer 5 8 type c gypsum sheathing min 23 32 wh tsc fca 60 04 ul l529 floor or roof with insulation wh tsc fca 90 02 calculated assembly report available ul l556 showing. Wood framed including dimensional lumber engineered joist and truss.

Fc1 fc2 fc3 fc6 fc7 fc8 2 hour floor ceiling assembly. Ws4 1 1 one hour fire resistive wood frame wall assembly 2x4 wood stud wall 100 design load astm e 119 nfpa 251. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Is this possible without using channels and what ul number would i use.

2 1 3 4 2. Urb concealed grid system and tile. I am looking for a 1 hour roof ceiling assembly for wood truss construction. Concrete with cellular steel 3 hr.

D horizontal membrane 52 shaft wall used in a horizontal plane. Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.

Framing nominal 2x4 wood studs spaced 16 in. Table 1 for one hour rated wall assemblies and table 2 for two hour rated wall assemblies. Ul does not appear to list an assembly as described. As the global safety science leader ul helps companies to demonstrate safety enhance sustainability strengthen security deliver quality manage risk and achieve regulatory compliance.

Refer to our roof ceiling assembly documents which includes ul fire rated roof assemblies for easy guidance through the assembly of a roof or ceiling on your next project. Breakaway clip facings and height of wall differ between ul design u373 and whi gp wa 120 04. Sound tested with 2 x 4 stud wall with 1 2 12 7 mm toughrock fireguard c gypsum wallboard or densarmor plus fireguard c panels each side of assembly and 3 1 2 89 mm fiberglass insulation in stud space both sides. Helpful documents and resources for usg s roof assemblies can be found on this page.