Fire Rated Acoustical Ceiling Assemblies

These ratings are based on astm standards and compliance is determined by several independent non government testing services such as underwriters laboratories inc.

Fire rated acoustical ceiling assemblies.

Two types of fire rated construction assemblies pertain to acoustical ceiling systems. Concrete with cellular steel 3 hr. Urb concealed grid system and tile. Refer to the material safety data sheet for each product for complete health and safety information.

The space above ceilings in hospitals is generally not used as a return air plenum because of the numerous service lines running through it. Fire resistance assembly rating. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. No ceiling or suspension system product alone constitutes a fire rated assembly.

Fire safety caution passing a fire test in a controlled laboratory setting and or certifying or labeling a product as having a one hour two hour or any other fire resistance or protection rating and therefore as acceptable for use in certain fire rated assemblies systems does not mean that either a particular assembly system. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Roof ceiling assemblies are one of the types of fire resistance rated construction assemblies having acoustical ceiling systems as a component. All new fire rated roof ceiling assembly files.

Ul tests rate an entire assembly. Elements of buildings the fire resistance rating classifies the ability of an assembly to confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies. Design details our cad and revit library of design drawings of wall intersections joints and other construction details. You can use only the specific type size and minimum thickness of fire guard ceilings or suspension system identified in each assembly.

Floor ceiling assemblies ceiling system lighting. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Substitution of any components is not recommended or supported by usg. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.

7 usg acoustical assemblies components acoustically rated systems have been comprehensively tested for sound control. Roof ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum roof support structure and roof assembly including deck insulation and roofing system. Ceilings usg acoustical ceiling panels. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

This table is a guide.