File:Fse-cavity-barrier-v3.svg

Fse-cavity-barrier-v3.svg (SVG file, nominally 900 × 600 pixels, file size: 7 KB)

Summary

Cavity barriers at each floor level in an external wall cavity (left) and a firestop in the slab edge gap of a curtain wall (right). Based on Ministry of Business, Innovation and Employment (2025b), pp. 47 to 48, and McAllister et al. (2008), p. 44.

Original vector illustration for Cavity barrier, level 2 Intermediate.

Source basis: Ministry of Business, Innovation and Employment (2025b), p. 47 (3.5 m vertical spread criterion, scenario VS) and p. 48 (paragraph 4.6.2.6, cavity barriers at each floor level); McAllister et al. (2008), p. 44 (firestop between floor slab and curtain wall on impaling pins); National Research Council of Canada et al. (2005), p. 1.6-6 (spaces behind exterior cladding as concealed spaces)
Alt text: Vertical section of an external wall over three floors with a ventilated cavity behind cladding, closed by a cavity barrier at each floor slab.

Licensing

New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:16, 2 November 2026		900 × 600 (7 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Cavity barrier

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Short title	Cavity barriers at each floor level in an external wall cavity (left) and a firestop in the slab edge gap of a curtain wall (right). Based on Ministry of Business, Innovation and Employment (2025b), pp. 47 to 48, and McAllister et al. (2008), p. 44.
Image title	Vertical section of an external wall over three floors with a ventilated cavity behind cladding, closed by a cavity barrier at each floor slab. Source basis: Ministry of Business, Innovation and Employment (2025b), p. 47 (3.5 m vertical spread criterion, scenario VS) and p. 48 (paragraph 4.6.2.6, cavity barriers at each floor level); McAllister et al. (2008), p. 44 (firestop between floor slab and curtain wall on impaling pins); National Research Council of Canada et al. (2005), p. 1.6-6 (spaces behind exterior cladding as concealed spaces)
Width	900
Height	600