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Mayplas Timber Frame Cavity Barrier 551


Timber Frame Cavity Barrier 551 has been designed to prevent passage of fire through concealed voids within the external fabric of a timber frame building.

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.

Timber Frame Cavity Barrier 551 assists in satisfying requirements of guidance documents such as Approved Document B and The Scottish Technical Handbook and will also assist in reducing flanking sound transmission at wall and floor junctions.

Features & Benefits

  • Tested and assessed to the general principles of BS 476 Part 20: 1987
  • Suitable for both vertical and horizontal orientation
  • Solutions available offering either 60 minutes or 120 minutes fire resistance performance
  • Accommodates a maximum void of 175mm
  • Designed for installation within masonry/timber frame cavities
  • Manufactured in bespoke sizes to suit the specified cavity width