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Timber Frame Cavity Barrier 551 has been designed to prevent the passage of fire through concealed voids within the external fabric of a timber frame building.
The barrier is stapled to the inner timber substrate prior to brickwork being erected and is compressed into the cavity.
Designed for installation within masonry/timber frame cavities
Installed under compression
Suitable for both vertical and horizontal orientation
Cavity Size: 155mm (15mm compression required)
Physical Thickness: 175mm
Fire Resistance: 2 hour
Fire Rating: BS 476-20: 1987
The Barrier is suitable for both vertical and horizontal positioning to the edge of cavities, around penetrations, at separating compartment lines and to sub-divide cavities.
Tested and assessed for up to 60 minutes fire resistance (integrity and insulation) in accordance with BS 476: Part 20.