1 Hour Fire Rated Exterior Wall Assembly

Type x gypsum board is wallboard to which non combustible fibers have been added. 2009 irc requires walls built within 5 of a property line or within 5 of another building on the same property to have a 1 hour fire resistance rating with fire exposure from the exterior of the building note. This assembly is fire rated for 1 hour from both sides.

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This assembly is fire rated for 1 hour from the interior side only except when brick is the exterior facing.

1 hour fire rated exterior wall assembly. Robert don t know about ca this assembly detail would be a fire area separation wall such as fire barriers shaft walls or even fire walls reference in the ibc. 1 hour rated exterior fire wall zero lot line applications description. 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. It also allows for the use of fiberglass insulation.

O c double top plates single bottom plate. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. 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. 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.

Use where wall is required to be rated from the exterior and interior sides. 1 hour fire resistance rated exterior wall assembly. 2 1 3 4 2. Framing nominal 2x4 wood studs spaced 16 in.

Fire barriers 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 and shall be securely attached thereto. 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. With stucco exterior and 5 8 type x interior. It does not appear ul has an exterior 1 hour stucco wall assembly.

One layer 5 8 inch type x gypsum wallboard or water resistant backer board or veneer base applied parallel with or at right angles to studs fastened with gwb 54 nails at 8 inches o c. I also looked at table 721 1 in cbc and there is nothing in their assemblies either for 2x4 wood studs 16 o c. According to the book commercial drafting and detailing a typical one hour fire rated wall consists of 2x4 studs spaced 16 inches from the center of one stud to the center of the next covered by 5 8 inch type x gypsum board. This ul listed assembly is commonly used in type v multifamily construction in load bearing exterior walls.