2 x 10 16 o c span 12 14 live load 40lbs w 3 4 wood sheathing ceiling 3 8 gwb.
Roof ceiling fire rated assemblies.
Roof ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum.
No ceiling or suspension system product alone constitutes a fire rated assembly.
These assemblies need to meet fire and smoke safety and environmental sustainability requirements.
The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.
Have a question about assemblies.
Fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.
Concrete with cellular steel 3 hr.
Two types of fire rated construction assemblies pertain to acoustical ceiling systems.
2 x 8 16 o c span 12 live load 40 lbs w 3 4 t g plywood ceiling 1 2 non rated gwb.
Urb concealed grid system and tile.
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.
Floor ceiling assemblies ceiling system lighting hvac outlets and other penetrants.
Roof ceiling and floor ceiling construction assemblies which are tested and assigned hourly ratings mandated by building codes or other building safety requirements.
3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.
722 6 2 1 fire resistance rating of wood frame assemblies.
Overview fire rated wall floor and ceiling assemblies provide the necessary fire and smoke barriers to create compartmentalization during a fire safeguarding against the spread of fire and smoke within a building or to and from a building.
Helpful documents and resources for usg s roof assemblies can be found on this page.
Floor ceiling.
Roof floor ceiling time assembly ff file no.
Fire rated assemblies are tested and certified in their entirety.
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.
Ul tests rate an entire assembly.
The fire resistance rating of a wood frame assembly is equal to the sum of the time assigned to the membrane on the fire exposed side the time assigned to the framing members and the time assigned for additional contribution by other protective measures such as insulation.
Fire partitions shall extend from the top of the foundation or floor ceiling assembly below to the underside of the floor or roof sheathing slab or deck above or to the fire resistance rated floor ceiling or roof ceiling assembly above and shall be securely attached thereto.
