TABLE 722.6.2(5) TIME ASSIGNED FOR ADDITIONAL PROTECTION

[drawman]

Does table 722.6.2(5) Time assigned for additional protection apply to floor-ceiling assemblies, or only to wall assemblies?

The language of the 722.6.2(5) chart states "Add to the fire rating of wood stud walls". However chapter 722.6.2.5 Additional Protection states that, "Table 722.6.2(5) indicates the time increments to be added to the fire resistance where glass fiber, rockwool, slag mineral wool or cellulose insulation is incorporated in the assembly."

 

[Yankee Chronicler]

Only to walls

 

[drawman]

That's what I assumed, but wanted to get a second opinion.