2 Hour Fire Rated Wood Floor Details

L003 l201 l511 l512 m500 m501 m503 m513 m514 m517.
2 hour fire rated wood floor details. Provides sound and fire control. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Urb concealed grid system and tile. Two layers 5 8 15 9 mm densglass fireguard sheathing applied vertically to min.
Sheathing on both sides. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies. Assemblies rated from both sides. Fire protection rating is calculated from the flame side of the assembly and of course some assemblies have multiple flame sides.
If the suspended ceiling system is fire rated as equivalent to the fire performance of 1 2 inch gypsum on the underside of the i joist framing it is considered an alternative to the fire protection requirements in accordance with the first paragraph in the 2015 irc section r302 13 and 2012 irc section r501 3. The total fire rating is determined by adding each component to reach a minimum total of 60 minutes. Face layer attached with 1 5 8 41 mm type s 12 corrosion resistant bugle head screws spaced 8. Table 1 one hour fire rated loadbearing wood frame wall assemblies.
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. Two hour load bearing wall systems. Base layer attached with 1 25 mm type s 12 corrosion resistant bugle head screws 8 203 mm o c. In new construction the entire floor assembly is often use to achieve the rating.
Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. 3 1 2 89 mm corrosion resistant 20 gauge 30 mils steel studs 24 610 mm o c. 3 mineral wool batts. One hour combustible floor ceiling and roof ceiling assemblies.
And wood structural panel. Drawings the industry standard for use over wood subfloors in multifamily construction. 2 fire rated wood frame wall and floor ceiling assemblies. One hour combustible load bearing wall assemblies.
The section details the procedures for calculating fire resistance of walls floor ceiling and roof ceiling assemblies. Underwriters laboratories of canada fire rated listings. Gyp crete fire ratings detail drawings. 2x4 16 o c.
276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. 5 8 type x gypsum wallboard h 2 6 type s drywall screws 12 o c. Concrete with cellular steel 3 hr. However the gypsum association manual has a new note for certain assemblies.
Lumber shall be identified by the grade mark of a lumber.