Rockwool SP Firestop Fixing Brackets (Small & Large)

Rockwool SP FireStop Fixing Brackets provide a robust fixing solution for securing fire-resisting slabs within cavity barrier and compartmentation systems. Manufactured from galvanised mild steel, these brackets maintain correct slab positioning, compression and edge contact to support rated fire performance in built environments.

Available in Small (SP/S) for narrower cavities and Large (SP/L) for wider openings, the brackets adapt to cavity widths for curtain-walling, floor transitions and masonry interfaces. Pre-formed with locating tabs and fixing holes, they allow efficient attachment to concrete, steel or masonry substrates. The galvanised finish offers long-term corrosion resistance in internal or sheltered conditions.

These brackets are essential within the Rockwool SP FireStop system to maintain structural continuity of fire-resisting elements. By preventing slab displacement or movement, they support the integrity of fire-stopping and compartment lines - critical for building safety, acoustic performance and airtightness.

Installation Guide:

Mark and install brackets at specified centres according to the Rockwool SP FireStop system guidance

Fix bracket securely to substrate using appropriate mechanical anchors

Insert fire-stop slab under light compression between brackets, ensuring full edge contact

Verify bracket alignment and that slab faces are undistorted

Complete system per manufacturer instructions to preserve fire-resistance rating