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

9.10.16.1. Required Fire Blocks in Concealed Spaces

 9.10.16.1. Required Fire Blocks in Concealed Spaces

Attic spaces are known to contribute to fire spread. Fire can enter such spaces through the overhanging #soffits or from #openings in the attic #ceiling. #Fire can also originate within the #attic as a result of improper #electrical installations (e.g., loose connections or overheated recessed lights). To reduce the speed of fire travel through large unoccupied attic areas and roof spaces, fire blocking is required at suitable intervals (not more than 20 m (65 ft.)), so that the individual open areas are kept reasonably small (at least 300 m2 (3 220 ft.2)). In the case of truss roofs, sheet type fire blocking is usually fastened to the sides of trusses at suitable intervals.

Quoted from Illustrated Users' Guide--NBC2015

#fireblock #concealedspace #atticspace #roofspace

How are plans reviewed? —#011

 How are plans reviewed? —#011

Sprinkler systems are expensive. Not all #designers understand when sprinkler systems are required in a #building. The plans examiners would never tell us that it is not required if it is shown on the #plans. Ask a true Building  Code consultant before installing it.

#sprinklersystem #plansexaminers #buildingcodeconsultant

9.10.16.1. Required Fire Blocks in Concealed Spaces

 9.10.16.1. Required Fire Blocks in Concealed Spaces

A building’s overhanging #eaves and #appendages, such as exterior #passageways, #balconies and #canopies, create spaces where fire can spread horizontally within concealed spaces. Vertical fire blocks are, therefore, required at horizontal intervals of not more than 20 m (65 ft. 7 in.), and at locations where the construction extends across the ends of fire separations, such as in row housing with gambrel-type #roofs (Figure 9.10.-32). This requirement applies to both #sprinklered and unsprinklered #buildings.

Quoted from Illustrated Users' Guide--NBC2015

#fireblocks #concealedspaces #fireseparation #rowhouse

Quiz for #architects, plans examiners and building inspectors

 Quiz for #architects, plans examiners and building inspectors

What is special on the #roof of this #building? What was the purpose of the architect by designing it in this way? Are there any #Code violations?

#plansexaminer #buildinginspector #buildingofficial #buildingcode