Roof Ceiling Assembly

And the width not to exceed 9 3 4 in.

Roof ceiling assembly.

The same code states that floor ceiling assemblies between dwelling units or. Roof ceiling steel framed one layer 5 8 15 9 mm toughrock fireguard c gypsum board or 5 8 15 9 mm densarmor plus fireguard c gypsum panels applied at right angles to resilient or rigid furring channels with 1 25 4 mm type s drywall screws 12 305 mm o c. These ratings are based on astm standards and compliance is determined by several independent non government testing services such as underwriters laboratories inc. Concrete with cellular steel 3 hr.

Per 100 sq ft of ceiling area. I am looking for a 1 hour roof ceiling assembly for wood truss construction. Channels spaced 12 305 mm o c. Aggregate damper openings shall not exceed 45 sq in.

Two types of fire rated construction assemblies pertain to acoustical ceiling systems. Section 1207 of the 2015 ibc states that wall and floor ceiling assemblies separating dwelling units must meet a sound transmission class stc rating of 50 or 45 for field tested assemblies tested in accordance with astm e90. With the length not to exceed 9 1 4 in. However designing wall partitions ceiling systems and floor ceiling assemblies for the distinct qualities of a space will achieve the most effective sound control.

When insulation is used or. Is this possible without using channels and what ul number would i use. 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. N beam designs for floor ceiling assemblies p roof ceiling designs s beam designs for roof ceiling assemblies u or v wall and partition designs x or y column designs ii.

These listings are short summaries to serve as a. One hour roof ceiling assembly. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. General the following information is applicable to all fire resistive designs described in this directory.

Urb concealed grid system and tile. Sound is defined as a vibration in an elastic medium that is any material air water physical object that returns. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. Fire resistance assembly rating.

Max height of damper shall be 9 7 8 in. Max nom area shall be 75 sq in. Helpful documents and resources for usg s roof assemblies can be found on this page. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.