1 Hour Fire Wall Assembly

Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

1 hour fire wall assembly.

Sometimes this is also called the assembly s fire endurance. 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. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. 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.

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. Assembly is listed with intertek not ul see below. Fire resistance ratings are expressed in the number of minutes or hours a structure can withstand a fire simulation test. This assembly is fire rated for 1 hour from both sides.

Code requirements vary an addendum to the assembly allows for the use of common claddings including smartside fiber cement and t1 11 panels. This ul listed assembly is commonly used in type v multifamily construction in load bearing exterior walls. It also allows for the use of fiberglass insulation. This assembly is fire rated for 1 hour from the interior side only except when brick is the exterior facing.

Framing nominal 2x4 wood studs spaced 16 in. 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 incorporating the product or any given piece of the product. 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. Property to have a 1 hour fire resistance rating with fire exposure from the exterior of the building note.

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.