This assembly is fire rated for 1 hour from the interior side only except when brick is the exterior facing.
1 hour fire rated wall thickness.
51 mm thickness can be used in the joints of a 4 hour wall.
Figure 722 2 1 3 1 shows thicknesses of ceramic fiber blankets to be used to insulate joints between precast concrete wall panels for various panel thicknesses and for joint widths of 3 8 inch 9 5 mm and 1 inch 25 mm for fire resistance ratings of 1 hour to 4 hours.
Glass fibers are added to the board to help it retard fire.
Lp flameblock is an icc es evaluated component of 1 and 2 hour fire rated wall assemblies and roof deck applications.
Most type x drywall has a one hour fire rating.
For example for an 8 in.
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.
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.
203 mm limestone aggregate concrete masonry wall with a maximum control joint width of in.
Go to work with a building solution that meets building code requirements for fire resistent construction while increasing structural ratings.
13 mm a 1 in.
25 mm thickness measured perpendicular to the face of the wall of ceramic fiber in the joint can be used in walls with fire resistance ratings up to 3 hours while a 2 in.
It combines flame spread and burn through resistance to give your customers.
Once rockwall panels have been installed according to the specific intertek warnock hersey certification guidelines the assembly provides 1 2 and 3 hours of fire resistance with a 4 5 and 6 core thickness respectively.
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.
Also because it is denser than normal gypsum and paper drywall it takes longer for the fire to degrade it.
The thickness of this drywall is 5 8 inch including all layers.
If the designer wants to exceed those limits then the required rating for the window wall assembly is 60 minutes tested to astm e 119.
When specified for these 1 hour fire rated assemblies lp flameblock sheathing reduces dead load and wall thickness versus common alternatives.