One Hour 1 Hour Fire Rated Wall Detail

Framing nominal 2x4 wood studs spaced 16 in.

One hour 1 hour fire rated wall detail.

2 1 3 4 2. Type x gypsum board is wallboard to which non combustible fibers have been added. Just start with half the rated wall against the existing wall add the studs or built it on the ground and stand it than add the other layer of sheet rock. Just build a one hour wall against the exiting.

Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. Tested a number of wood frame fire resistance rated as semblies see photos. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. It also providesbetter substrate for securely fastening exterior facing materials.

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 the interior side only except when brick is the exterior facing. 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. Corridor walls required to be fire resistance rated shall comply with section 708 for fire partitions.

Air space between liner panels and adjacent wood or metal framing. Not sure if i will describe it correctly but find a ul or other approved one hour listed design. 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. Lumber shall be identified by the grade mark of a lumber.

Descriptions of successfully tested lumber wall assemblies are provided in table 1 for one hour fire resistance rated wall assemblies and table 2 for two hour fire resistance rated wall assemblies. Ul m503 cul m503. Code requirements vary an addendum to the assembly allows for the use of common claddings including smartside fiber cement and t1 11 panels. Sound tested with 2 x 4 stud wall with 1 2 12 7 mm toughrock fireguard c wallboard or densarmor plus fireguard c panels and 3 1 2 89 mm fiberglass insulation in stud space.

1 hour fire rated construction non loadbearing acoustical performance reference construction detail description test number stc test number index wt. Fire partitions shall have a fire resistance rating of not less than 1 hour. 7 alternate based on 2 1 2 gauge steel studs and 1 2 face layer laminated ga wp 105153ngc 2318 based on 2 glass fiber. Corridor walls permitted to have a 1 2.