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 before brickwork is erected and compressed into the cavity.

Designed for installation within masonry/timber frame cavities

Installed under compression

Suitable for both vertical and horizontal orientation

Cavity Size: 160mm (15mm compression required)
Physical Thickness: 180mm
Width: 150mm
Length: 1200m
Quantity: 5
Fire Resistance: 2 hour
Fire Rating: BS 476-20: 1987 

Application:

The Barrier is suitable for both vertical and horizontal positioning at the edge of cavities, around penetrations, at separating compartment lines, and to subdivide cavities.

Certification:

Tested and assessed for up to 60 minutes of fire resistance (integrity and insulation) in accordance with BS 476: Part 20.