Thermal Cavity Barriers - TCB (Thermal Cavity Barrier) and PWCB (Party Wall Cavity Barrier) - have been developed to exceed minimum building regulation requirements for fire resistance within concealed wall cavities. Tested and assessed to BS476:Part 20 and BS EN 1366-4:2006+A1 2010, they provide up to 60 minutes fire resistance (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.