Please note a likely lead time of 3-5 days as ordered in from the manufacturer to supply.
Timber Frame Cavity Barrier MP551
Timber Frame Cavity Barrier MP551 is designed to offer 60 minutes fire resistance between the outer brickwork and inner timber sheathing of timber frame constructions. It can also be used for the control of sound flanking transmission at wall junctions. MP551 is manufactured using polythene enclosed non-combustible rockfibre, in bespoke sizes designed to be compressed by 15mm within the cavity - this “made to measure” cavity barrier design provides a minimum of 1 hour fire resistance, and is crucial in sound applications where “flanking transmission” can be the weak link of an otherwise robust construction.
- Vertical Barriers are stapled at 150mm centres to the inner timber sheathing by both flanges - joints are close butted.
- Horizontal barriers are stapled (at 150mm centres) to the inner timber sheathing by the upper flange only - joints are close butted.
- MP551 is designed to be compressed by 15mm in the cavity as the brickwork is built up
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.