Cavity Barrier

As most buildings contain a multitude of concealed cavities and voids within walls, floors, ceilings and roofs, effective cavity barriers are essential to restrict the spread of smoke or flames. If there is a fire, the intumescent material which makes up the barrier will expand, sealing off the gaps.

Cavity barriers are typically pieces of fire-stopping material which are fitted within buildingcavities – horizontally at each floor, and vertically at each party wall. This assists with fire compartmentation.

FSi Cavity Barriers are developed to protect the voids between the outer rainscreen cladding / facade and the inner construction element of the building. The products are developed by FSi depending on the building requirements, these products are Paraflam SEB, Silverliner Rainscreen Cavity Barrier (ventilated and non-ventilated), and Tecnica SEB.

These products have aluminium foil faces thus providing a class ‘O’ rating and excellent resistance to smoke. A unique method of manufacture provides a resilient lateral compression required to ensure a tight fit.

Flexi-Coat is an ablative, highly advanced highly flexible coating for used to apply to uncoated stonewool boards to reinstate the fire resistance performance of wall and floor constructions where apertures are penetrated by single or multiple services. Flexi-Coat has been designed to be used in application where movement accommodation of +/- 25% is required. Flexi-Coat is idea for slab edge applications and movement seals.

Supplied in 10kg and 20kg pails.

Certification & Testing

  • Tested in accordance with EN1366-4:2009 – Fire Resistance – Linear Seals
  • Tested in accordance with EN1366-3:2009 – Fire Resistance – Penetration Seals
  • Classified in accordance with EN13501-2 – Fire Resistance
  • CE Marked – ETA 13-1057 & ETA 15-0434
  • Certifire – CF5094
  • ULEU Accreditation
  • UAE Certificate of compliance
  • Tested in accordance with EN10140 – Airborne Sound
  • Tested in accordance with EN1026 – Air Permeability
  • Tested in accordance with EN1027 – Water Permeability

Paraflam®SEB is a non-combustible stonewool based product used to reinstate the fire resistance performance of wall and floor constructions, including ceiling cavities, slab edge void and underfloor upgrades. Paraflam®SEB is has a foil facing which prevent fibre migration and provides an excellent smoke seal.

Certification & Testing

  • Testing in accordance with EN1366-3:2009 – Fire Resistance
  • Classified in accordance with EN13501-2 – Fire Resistance
  • CE Marked – ETA 16-0763
  • Certifire Accreditation – CF5126
  • ULEU Accreditation
  • Tested in accordance with EN10140-2:2010 – Airborne Sound
  • Tested in accordance with EN1026:2000 – Air Permeability
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Silverliner® Closed 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 “closed state”Cavity Barrier has a 30mm wide flexible intumescent edge which allows for movement in the cavity. The aluminium foil facing provides class ‘O’ rating and is an excellent smoke barrier.

  • Rigid Floors

Certification & Testing

  • Tested in accordance with BS 476pt 20/22

Areas of Use:

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

Advantages

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

We also ensure that the whole team is included in the process and that no one is left out during the turnaround. The most crucial part is ensuring some degree of financial stability during the turnaround.

Advantages

  • 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

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

Certification & Testing :

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

Tecnica®SEB is a pre-built, pre-cut, multi layered barrier designed to prevent the passage of fire between compartment floors at the edge of slabs, offering acoustic isolation and waterproofing whilst still allowing for building movement.

There are multi build-up possibilities within the product range which offer differing engineered solutions and capabilities. The products have integral aluminium foil facings to prevent fibre migration and excellent resistance to smoke. All the Tecnica®SEB Range as a stonewool non-combustible base.

A unique patented method of manufacture provides a lateral compression required to ensure a tight fit to allow building movement, the abutting edge of the product is a flexible intumescent seal.

Certification & Testing

Testing in accordance with EN1366-4:2009 – Fire Resistance
Tested in accordance with BS476pt 22
Tested in accordance with EN10140-2:2010 – Airborne Sound

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