9.10.16.2. Required Fire Blocks in Wall Assemblies

 9.10.16.2. Required Fire Blocks in #Wall Assemblies

#Furring or #strapping can also create spaces that allow fire spread. These should also be blocked off at each #floor level and at the #ceiling level if the ceiling #membrane provides part of the required fire resistance (Figure 9.10.-38). Since furring can be installed either horizontally or vertically, both the horizontal and vertical spacings of fire blocks are limited (20 m (65 ft. 7 in.) and 3 m (10 ft.), respectively).

Quoted for Illustrated Users' Guide - NBC2015

#fireblock #fireresistance

How are plans reviewed?—#012

 How are plans reviewed?—#012

Believe it or not, this happens everywhere, from small privately owned #AHJ to big #municipalities.
#buildingcode #buildingpermit #plansreview

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

9.10.16.2. Required Fire Blocks in Wall Assemblies

 9.10.16.2. Required Fire Blocks in Wall Assemblies

This Article indicates where fire blocking is required in #walls. Wall assemblies that have concealed spaces greater than 25 mm (1 in.) in depth created by #furring and spaces between the #studs require fire blocks every 3 m (9 ft. 10 in.) vertically and every 20 m (65 ft. 7 in.) horizontally, unless the exposed construction materials within the space are #noncombustible, have a flame-spread rating of not more than 25, or are filled with #insulation. The value of the flame-spread rating of the combustible materials determines the permitted extent of the concealed space between fire blocks. The materials to be considered include all construction materials regulated by the NBC, including the framing and building services that are located in the concealed space. 

In balloon frame construction where the stud spaces are continuous through two or more storeys, the spaces between the studs have to be blocked off at each level to restrict fire spread (Figure 9.10.-36).

Quoted from Illustrated Users' Guide - NBC2015
#fireblock #concealedspace #flamespreadrating #wallassemblies #balloonframe

9.10.16.2. Required Fire Blocks in Wall Assemblies

 9.10.16.2. Required Fire Blocks in Wall Assemblies

This Article indicates where fire blocking is required in #walls. Wall assemblies that have concealed spaces greater than 25 mm (1 in.) in depth created by #furring and spaces between the #studs require fire blocks every 3 m (9 ft. 10 in.) vertically and every 20 m (65 ft. 7 in.) horizontally, unless the exposed construction materials within the space are #noncombustible, have a flame-spread rating of not more than 25, or are filled with #insulation. The value of the flame-spread rating of the combustible materials determines the permitted extent of the concealed space between fire blocks. The materials to be considered include all construction materials regulated by the NBC, including the framing and building services that are located in the concealed space.

In #platform frame construction, many of these requirements are met as a result of normal framing practices. This is illustrated in Figure 9.10.-35.

Quoted from Illustrated Users' Guide - NBC2015

#fireblock #concealedspace #flamespreadrating #wallassemblies

9.10.16.1. Required Fire Blocks in Concealed Spaces

 9.10.16.1. Required Fire Blocks in Concealed Spaces

The framing of an opening for #stairs through a wood joist floor normally requires a #framing member for structural integrity at the top and bottom of each #stairway and, in so doing, provides a fire block as seen in Figure 9.10.-34.

Quoted from Illustrated Users' Guide - NBC2015

#fireblock #concealedspace #woodjoist