1 Hour Fire Rated Wall Assembly With Plywood

Lp flameblock is an icc es evaluated component of 1 and 2 hour fire rated wall assemblies and roof deck applications.

1 hour fire rated wall assembly with plywood.

The section details the procedures for calculating fire resistance of walls. 2 1 3 4 2. Two layers of 5 8 inch fire rated gypsum on the interior with steel framing or frt wood framing frt plywood exterior sheathing and 5 8 inch exterior fire rated gypsum such as gp densglass see u371. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.

Go to work with a building solution that meets building code requirements for fire resistent construction while increasing structural ratings. It combines flame spread and burn through resistance to give your customers. O c double top plates single bottom plate. To confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies.

Framing nominal 2x4 wood studs spaced 16 in. Architects and contractors can spend a lot of time hunting for miscellaneous fire rated assemblies in wood construction. Ratings for these two hour assemblies are from both sides. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

Lp wall assembly for this application has been allowed by building code officials common applications. This assembly has been modified by adding pyro guard plywood to the exterior side of the wall. 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. Fire rated assemblies are tested and certified in their entirety.

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. 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. Section 703 3 of the ibc allows. Assembly 15 1 6 which can be found in ibc table 720 1 2 is also shown.

Type x gypsum board is wallboard to which non combustible fibers have been added. Figure 1 is a modified version of ul design u301.