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Smoke and fire stopping

Uniclass category Pr_25_80_81

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556 Firestop Slab


556 Firestop Slab has been developed to provide two hours firestopping in building cavities up to 300 mm wide. The system has been tested by Warrington Fire Research to BS EN 476-20.

It is manufactured using 75 mm thick high density rock fibre slab foil faced on both sides. Firestop Slab has rebated ends for a secure fit and is available in full slabs 1160 x 900 mm, or factory cut to size.

It can provide two hours fire resistance in masonry cavity voids and between the edge of a concrete floor slab and curtain walling systems.

Suitable for cavities 50–300 mm wide.

554 Firestop Strip


550 Series Firestop Systems have been developed to provide up to four hours firestopping at the junctions of compartment walls and floors. The systems have been tested in accordance with BS EN 476-20.

553 Firestop Strip is a no compression, tight fitting (extended width) strip for rectangular voids. It is used in cases where the fire resistance of a deck horizontally is less than the fire resistance of the wall itself.

  • Maximum void size to be filled: 50% of wall width.
  • Available for voids of between 10–100 mm.

556AF Access Floor Firestop Slab


556AF has been developed to provide 30 or 60 minutes firestopping in voids of up to 600 mm between raised access floors and structural floors. The system has been tested by the Loss Prevention Council to BS EN 476-20. 556AF is foil faced both sides and is available in full slabs for cutting on site or factory cut to size.

To suit individual floor void depths of between 50–600 mm. Class 0 rated with excellent smoke resistance.


Promat UK

An intumescent seal with a starting temperature of 300°C (approximately) in roll form.

ROCKWOOL Firepro Multi-Cable Firestop


A compressible fire retardant foam laminated both faces with a graphite based intumescent polymer, designed to fire stop cable bunches in electrical trunking and cable trays where they pass through fire rated walls and floors. To install, the product is simply cut to the required length and compressed between the cables and the surrounding trunking/ structure to form a tight seal.


  • Simple to install.
  • Cables can be easily added or removed.
  • No de-rating of cables required.
  • Maintenance free.
  • Dry system.

PS Intumescent Fire Pillow


Intumescent firestop pillows to prevent the spread of fire where cables and other non-combustible services penetrate fire compartment walls and floors.

PROMASEAL® Fire Pillows

Promat UK

Designed to maintain fire resistance of walls and floors at services openings, generally for cables and non-combustible pipes where frequent access is required for alterations.

SIDERISE Firestops for Tops of Walls

Siderise Group

A one-piece passive fire insulation product for sealing the cavities formed between the top of compartment walls and the underside of the construction above, preventing the spread of fire and smoke and reducing sound transmission.

ROCKWOOL Firepro Intumescent Pillows


As part of the comprehensive FIREPRO range of fire protection products, ROCKWOOL Intumescent Pillows have been tested to BS 476: part 20 to provide up to 4 hours fire protection to metal services and cables passing through fire resisting compartment floors and walls.

Intumescent Pillows are simply packed tightly in between penetrating services and the wall. In a floor, pillows are additionally supported by means of a mesh support system.

Under fire conditions, Intumescent Pillows expand several times their original volume to form an effective seal around service penetrations.

Intumescent Pillows are suitable for use with:

  • Metal pipework.
  • Cable trays.
  • Electrical trunking (inside and outside).


  • Simple to install.
  • Easy to remove and reinstate whilst changing services.
  • Maintenance free.
  • Dry system.
  • Available from 48 hours of order.

Showing 1-36 of 80