Silverliner® Ventilated Open State Cavity Barrier

Silverliner 01

Silverliner® Open State Cavity Barrier has been developed to protect the voids between the outer facade and the inner construction element of the building in the case of a fire. This “open state”Cavity Barrier allows for a 25mm gap to ensure movement of air and moisture within the building. The aluminium foil facing provides class ‘O’ rating and is an excellent smoke barrier.

  • Rigid Floors

Areas of Use:

  • To provide fire protection in cavities between the inner construction element and outside facade
  • Where “open state” voids specified
  • Assumed working life 25 years
  • For internal use


  • Very fast installation, with bracket fit system
  • For use in voids up to 350mm wide
  • Stone based, none combustible core
  • Dry fit solution, no curing time

Certification & Testing

  • Tested in accordance with DIN 4102 B2 ASFP Open State Cavity Barrier Test TGD 19

Open State


Cavity Barrier TDS Jan 2023
Technical Data Sheet (TDS)
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Silverliner Cavity Barrier PID Sept 2018
Product Information Document (PID)
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Silverliner Open State Cavity Barrier SDS Aug 2017
Safety Data Sheet (SDS)
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