Wood joists wood i joists floor trusses and flat or pitched roof trusses spaced a maximum 24 o c.
1 hour rated wood roof assembly.
For details about rated truss assemblies see sbca research report 1509 01.
Wood truss council of america floor or roof fire notes 1.
In addition sbca s metal plate connected wood truss handbook is a comprehensive reference book that contains information about.
1 one hour and two hour rated assemblies that may be used in the roof cavity and that may be constructed with gable end frames.
Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr.
There is no tested assembly that matches in all regards.
Urb concealed grid system and tile.
Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly.
See full report for details.
Ibc table 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses.
12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.
Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c.
One hour roof ceiling assembly.
3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.
Wood joists supporting 1 25 4 mm nominal wood subfloor and 1 25 4 mm nominal wood finish floor or 19 32 15 1 mm plywood finished floor with long edges t g and 15 32 11 9 mm interior plywood with exterior glue subfloor perpendicular to joist with joints staggered.
These listings are short summaries to serve as a.
276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.
Descriptions of successfully tested i joist floor as.
Fire resistance rated truss assemblies.
These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.
Table 1 for one hour rated wall assemblies and table 2 for two hour rated wall assemblies.
No minimum joist size is given except that it needs to be adequate for structural loads.
Screw fastened perpendicular to lower chord of wood trusses of 2 x 4 38 mm x 89 mm.
Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.
6 usg fire resistant assemblies test certiļ¬cation test conditions and fire and sound tested assemblies listed in this selector are based on characteristics properties and performance certificationof materials and systems obtained under controlled test conditions as set forth in the appropriate astm standard in effect at the time of test.
With 1 2 wood structural panels with.
Assemblies include ducts dampers lighting or other fixtures in the tested assembly.
Ul p533 roof ceiling one layer 5 8 15 9 mm fire shield c ga rc 2603 wallboard attached to 1 2 12 7 mm resilient furring channel spaced 12 o c.
