Product description



  • Fire resistance: up to 1 hour
  • Sound reduction: 23dB (Rw)
  • Multipurpose
  • Easy to install
  • Available from builders merchants/insulation stockists (contact Siderise for details)
  • Cut on site


SIDERISE 1STOP multipurpose acoustic and fire cavity barrier and fire stop slab is an easy to install stonewool insulation slab suitable for use in a variety of applications.

1STOP is made out of compressed lamella stonewool held together with foil facings, giving up to 1 hour fire protection, reducing noise - 23dB (Rw) and it also acts as an effective smoke barrier.  It should be used when fire stopping is specified to comply with Building Regulations.

1STOP slabs can be cut on site to make cavity barriers and fire stops that are suitable for use:

  1. in suspended ceilings
  2. in raised access floors
  3. on tops of walls
  4. in profiled decks

The insulation slabs can be bought individually and, due to the nature of their construction, any excess insulation can be used in other applications, on different projects.

1STOP slabs are available from builders merchants and insulation stockists – please contact the SIDERISE interiors team for details of your nearest 1STOP stockists.