1 Hour Rated Roof Assembly

I am looking for a 1 hour roof ceiling assembly for wood truss construction.

1 hour rated roof assembly.

The addition al layer of gypsum board shall be. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. In fact there is no. 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.

See full report for details. These listings are short summaries to serve as a. Helpful documents and resources for usg s roof assemblies can be found on this page. Report number 1 hour rating category illustration construction 24 oc min 18 depth resilient channel 16 oc 1 layer 5 8 type c gypsum sheathing min 15 32 ul l546 floor or roof with damper duct fixtures insulation and metal trim note 1.

6 usg fire resistant assemblies test certification 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 exterior glue applied at right angles to top of joist or top chord of trusses with 8d nails. Search for georgia pacific assemblies by selecting an assembly type hourly rating stc rating or product type above or type part of a assembly name. Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c.

Face layer attached with 2 3 8. Ibctable 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses. Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly. Ther batt or loose fill to any 1 or 2 hour fire resistance rated floor ceil ing or roof ceiling system having a cavity deep enough to accept the in sulation is permitted provided that one additional layer of either 1 2 inch or 5 8 inch type x gypsum board is applied to the ceiling.

No minimum joist size is given except that it needs to be adequate for structural loads. Is this possible without using channels and what ul number would i use. Ul does not appear to list an assembly as described.