2 Hour Fire Rated Floor Assembly

D985 unres 4 1 2 nwc mk6g.

2 hour fire rated floor assembly. W 1 x 8 wood planking 2 layers 1 2 plywood span 10 live load 40lbs. D985 res 4 1 2 nwc z106hy unprotected future floor ceiling nwc fluted cellular ul d925. Sheathing on both sides. Insulation for sound fire rated assemblies.

D985 res 4 1 2 nwc all. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies. Fire safety caution passing a fire test in a controlled laboratory setting and or certifying or labeling a product as having a one hour two hour or any other fire resistance or protection rating and therefore as acceptable for use in certain fire rated assemblies systems does not mean that either a particular assembly system. 5 8 type x gypsum wallboard h 2 6 type s drywall screws 12 o c.

D925 unres nwc z106hy. D985 unres 4 1 2 nwc z106h. However the gypsum association manual has a new note for certain assemblies. 2x4 16 o c.

Assemblies rated from both sides. D925 unres nwc all. 3 mineral wool batts. 2 x 6 f d joists 16 o c.

Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. Ceiling provides two hour fire resistance protection for wood framing where that note is included the entire rating is provided by the gypsum and you don t need a particular floor. 2 fire rated wood frame wall and floor ceiling assemblies. Wall floor assembly guide construction designs for acoustical control the goal of all acoustically ef cient systems is to create a living or working environment that is comfortable and free from distraction or unwanted external.

Descriptions of successfully tested i joist floor as semblies are provided in table 3 for one hour fire re sistance rated floor ceiling assemblies and table 4 for two. D985 res 4 1 2 nwc mk6gf. D925 unres nwc mk6gf. 4 1 2 nwc 2hr only fluted.

The fire resistance rated assemblies described in this document as well as those listed in other sources are not species or grade specific unless specifically noted as such. D985 unres 4 1 2 nwc all. Fire protection rating is calculated from the flame side of the assembly and of course some assemblies have multiple flame sides. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

In new construction the entire floor assembly is often use to achieve the rating. The total fire rating is determined by adding each component to reach a minimum total of 60 minutes. 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.