TCB Cavity Barrier
Fire Protection Solutions

TCB Cavity Barrier

Safety Barriers

Cavity barriers work to improve a building’s safety by preventing the spread of fire within concealed voids. By specifying and installing the TCB Cavity Barrier or PWCB Cavity Barrier, they provide essential protection whilst also helping to minimise air leakage and heat loss between the external cavity and the separating party wall. 

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ROCKWOOL TCB Cavity Barrier and PWCB Cavity Barrier products have been created to provide excellent levels of fire protection for timber frame and masonry properties. They have been designed to exceed minimum building regulation requirements for fire resistance in concealed wall cavities, having been tested and assessed for up to 60 minutes’ integrity and insulation. These cavity wall insulation products have been created from non-combustible stone wool and wrapped within a resilient polythene sleeve which acts to provide weather protection during installation. The sleeves are also colour-coded to differentiate between the two products, the TCB’s are red and the PWCB’s are white. An all in one solution, the ROCKWOOL PWCB cavity barrier also achieves the trilogy of requirements for fire safety, acoustic flanking and thermal bypass in one single product whilst providing effective perimeter edge sealing, reducing the leaking of air and associated heat loss.

 

Accreditations:

Approved by the loss Prevention Certification board (lPCb) for performance and quality. 1991 (2000 edition) / Euroclass A1 fire rating / Tested and assessed for up to 60 minutes fire resistance (integrity and insulation) in accordance with BS 476: Part 20. 

  • Fire protection - ROCKWOOL TCB Cavity Barrier and PWCB Cavity Barrier products have been developed to exceed minimum Building Regulation requirements for fire resistance within concealed wall cavities. 
  • Resilient performance – the TCB Cavity Barrier and PWCB Cavity Barrier is not affected by movement in a building, shrinkage or thermal change.
  • Durable – the barriers continue to withstand on-site handling once installed in a build.
  • A vertical or horizontal solution – ROCKWOOL Cavity Barriers can be used in both vertical and horizontal applications. In vertical applications, both flanges of the Cavity Barrier can be fixed to the inner leaf at 150mm centres, using staples or clout nails prior to compression fitting by outer cavity wall. In horizontal applications, only the top flange of the polythene sleeve should be fixed. 
  • Acoustic protection – ROCKWOOL Cavity Barriers prevent flanking noise transmission, along concealed cavities in both external and separating walls. 
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Product Properties

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Reaction to fire Euroclass A1 / Fire Resistance up to 60mins
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Product range and ancillaries

Item number External item number Country Thickness (mm) Width (mm) Length (mm) Pieces Per Pack Packs Per Pallet
164417 164417 UK 65 65 1200 45 5
164418 164418 UK 75 75 1200 35 5
164527 164527 UK 90 90 1200 25 5
164530 164530 UK 110 1200 18 5
164551 164551 UK 120 1200 15 5
164564 164564 UK 130 130 1200 12 5
164570 164570 UK 140 140 1200 9 5
164580 164580 UK 150 150 1200 8 5
164581 164581 UK 160 160 1200 7 5

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