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Astroflame Cavity Fire Barrier Roll

excl tax

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Astroflame- Cavities are created in many wall constructions to aid thermal insulation performance and to provide a moisture barrier. Such constructions are common in residential, public and commercial buildings. Completely closing the cavity, for example with solid cavity barriers, can detract from its performance and can result in both thermal and moisture bridging and potential structural damage.

These wall cavities can form unrestricted chimneys which, if left unprotected, can allow fire to spread both vertically and horizontally around a building. Cavities are subject to Building Regulations and most should be fitted with fire barriers to prevent the spread of fire via the open cavity.

To combat this Astroflame as part of its continuing development of passive fire protection solutions has developed a Cavity Fire Barrier On a Roll.


Not suitable for use with rainscreen cladding or timber cladding systems.

75mm wide x 4mm thick x 6.3 metres long. Product Ref : AFCFBR75

*Please note all orders for cavity barriers must have a sectional detail showing the cavity wall make-up submitted for approval before any orders can be despatched*

Tested to BS 476 Part 20

30 Minutes Fire Rating

For cavities up to a nominal 50mm

Prevents thermal & moisture bridging

Low Profile Design

Technical Data Sheet Download
Safety Data Sheet Download

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