130mm Mayplas Timber Frame Cavity Barrier TCB MP551 CFB (145x150mm) - pack of 10
130mm Mayplas Timber Frame Cavity Barrier TCB MP551 CFB (145x150mm) - pack of 10
Product Code:
1.2 LM (linear metre)
Thermal Conductivity:
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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.

Key points :

Designed for installation within masonry/timber frame cavities

Installed under compression

Suitable for both vertical and horizontal orientation

Specification :

Cavity Size: 130mm (15mm compression required)
Thickness: 150mm
Width: 145mm
Length: 1200m
Quantity: 10
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. 


Datasheets & Documents.