Product description



  • Fire resistance: up to 5 hours
  • Sound reduction: up to 28dB (Rw)
  • No additional sealants / adhesives
  • No additional sub-frame required


SIDERISE cavity barriers and firestops for suspended ceilings have been developed to provide a simple and easy to install method of sealing the void formed above suspended ceilings.

The standard range has been optimized to include options of materials that are cost effectively matched to suit the specific performance criteria for all suspended ceiling void requirements.

Being specifically designed for this application, these insulation products represent a combination of fully qualified performance, practical installation and service benefits.

Note: This product was previously known as Lamatherm SC cavity barriers & fire stops for suspended ceilings.