To supersede the requirements of Sentence 3.4.4.1.(1) in regard to exit enclosures passing through floor assemblies, which are required by Subsection 3.2.2. to have a 3 h fire-resistance rating, which would otherwise require the exit enclosure to have a fire-resistance rating above 2 h, on the basis that the 2 h fire-resistance rating of the fire separation is considered to provide an adequate level of protection.