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 the 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
Width: 145mm
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 to the edge of cavities, around penetrations, at separating compartment lines and to sub-divide cavities.

Certification:

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