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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.

General information

Uniclass 2015

Pr_25_80_81_43 Intumescent pillowsPrimary


P12/345 Intumescent pillows

Specification data - Intumescent pillows

Product Reference

ROCKWOOL Intumescent Pillows


35 mm


50 mm

100 mm

150 mm

200 mm


300 mm


Galvanised steel mesh

2.5 mm wire diameter. (Not supplied by ROCKWOOL).

Standard product features


Will provide 4 hours fire integrity and 2 hours insulation rating as tested in accordance with BS 476-20.