90mm Rockwool SP120 FireStop Slab (2.6m2/Pack)

Rockwool SP120 FireStop Slab with a 90mm thickness and total coverage of 2.6 m² per pack. High-density, non-combustible stone wool slab designed to provide firestopping, thermal, and acoustic performance at the junctions of compartment walls and floors. Engineered for use in curtain walling and cladding interfaces, it offers proven fire resistance and dimensional stability under load and temperature exposure. Manufactured from molten volcanic rock spun into fine fibres, the slab achieves Euroclass A1 non-combustibility and maintains integrity for up to 120 minutes fire resistance when correctly installed. The robust, semi-rigid structure ensures close friction fit within cavities and movement joints without the need for mechanical restraint. The 90mm thickness provides optimum fire-stopping depth for high-rise and commercial façade applications requiring maximum fire containment.