9.10.16.2. Required Fire Blocks in Wall Assemblies

 9.10.16.2. Required Fire Blocks in Wall Assemblies

Concealed spaces in #walls should not interconnect with concealed spaces above or below them. Coved #ceilings that can create pathways between the wall space and either #floor spaces or #attic spaces should be fire blocked at the bottom of the cove to prevent communication between the horizontal and the vertical spaces (Figure 9.10.-37).

Quoted from Illustrated Users' Guide - NBC2015

#fireblock #concealedspace