Lantz boggio architects used lp flameblock fire rated osb sheathing as a code compliant component of both 1 hour and 2 hour ul listed fire rated wall assemblies.
1 hour fire rated wall assembly with plywood.
Ratings for these two hour assemblies are from both sides.
O c double top plates single bottom plate.
These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.
Assembly 15 1 6 which can be found in ibc table 720 1 2 is also shown.
What you ll eventually learn is that the easiest place to design your own 1 hour assembly is section 721 6 of the international building code.
Framing nominal 2x4 wood studs spaced 16 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.
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.
Type x gypsum board is wallboard to which non combustible fibers have been added.
This assembly has been modified by adding pyro guard plywood to the exterior side of the wall.
Lp flameblock is an icc es evaluated component of 1 and 2 hour fire rated wall assemblies and roof deck applications.
Lp wall assembly for this application has been allowed by building code officials common applications.
The section details the procedures for calculating fire resistance of walls.
2 1 3 4 2.
Go to work with a building solution that meets building code requirements for fire resistent construction while increasing structural ratings.
Figure 1 is a modified version of ul design u301.
Fire rated assemblies are tested and certified in their entirety.
It combines flame spread and burn through resistance to give your customers.
Section 703 3 of the ibc allows.
The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.
Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.
Architects and contractors can spend a lot of time hunting for miscellaneous fire rated assemblies in wood construction.