1 Hour Fire Wall Assembly

This ul listed assembly is commonly used in type v multifamily construction in load bearing exterior walls.

1 hour fire wall assembly.

O c double top plates single bottom plate. This assembly is fire rated for 1 hour from the interior side only except when brick is the exterior facing. A typical one hour fire rated wall assembly approved by universal laboratories consists of 2 x 4 inch wood wall studs and r 13 glass fiber insulation faced with a vapor retarding foil filling the cavities. Sometimes this is also called the assembly s fire endurance.

2 1 3 4 2. According to the engineered wood association a one hour rating indicates that a wall constructed in a manner similar to the one tested will contain flames and high temperatures and support its full load for at least one hour after the fire begins. Property to have a 1 hour fire resistance rating with fire exposure from the exterior of the building note. Warnock hersey fire resistance rated wall assemblies warnock hersey product listings standards products are certified against astm iso en can cgsb can ulc 1 hour fire resistive rated wall assemblies click the link above each design number below represents a james hardie 1 hour fire resistive wall assembly jh fcs 60 01.

Fire resistance ratings are expressed in the number of minutes or hours a structure can withstand a fire simulation test. Code requirements vary an addendum to the assembly allows for the use of common claddings including smartside fiber cement and t1 11 panels. This assembly is fire rated for 1 hour from both sides. Framing nominal 2x4 wood studs spaced 16 in.

A 5 8 inch thick type x gypsum wallboard hangs vertically to reduce the number of joints and possible fire entry points inside the studs. Fire rated wood frame wall and floor ceiling assemblies 5 ws4 1 1 one hour fire resistive wood frame wall assembly 2x4 wood stud wall 100 design load astm e 119 nfpa 251. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. Fire safety building assembly s the period of time the assembly will serve as a barrier to the spread of fire and how long fire resistance the assembly can function structurally after it is exposed to a fire of standard intensity as defined by astm e119.

It also allows for the use of fiberglass insulation.