ROCKWOOL® SP Firestop OSCB 44
Specifically designed for use only in conjunction with ROCKWOOL RAINSCREEN DUO SLAB®, SP Firestop OSCB 44* forms an open-state cavity fire barrier within the building façade, allowing for an open cavity of up to 44mm for ventilation and drainage. This product provides up to 120 minutes integrity and insulation.
Designed for use only in conjunction with ROCKWOOL RAINSCREEN DUO SLAB, SP Firestop OSCB forms an open-state cavity fire barrier within a rainscreen cavity. The product comprises of a continuous intumescent strip fixed to the leading edge of a foil faced stone wool barrier, encapsulated by a weather-resistant polythene sleeve. Fully tested to ASFP TGD 19, the combination of non-combustible insulation with an effective intumescent supports the construction of safe façade systems and aids the design of high-rise buildings over 18m in height. Installed horizontally and designed to ensure an appropriate open air space is maintained, SP Firestop OSCB is suitable for cavity widths up to 425mm (OSCB 44).