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Silverliner® Open State Cavity Barrier

Verified by manufacturer 14 days ago

FSi Limited Third party certifications:
  • IFCC

    IFCC

    Certificate type

Open state cavity barrier.

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Application

Application and Use 

  •  Between the inner substrate and the external building envelope.
  • In conjunction with Paraflam® where vertical Cavity Barriers are required.
  • Where movement of air and moisture is required.
  • Systems to cover void ranges from 2–550 mm.

Description

Silverliner® Open State Cavity Barrier (OSCB) systems have been developed to protect the voids between the outer façade and the inner construction element of the building. The product is designed for use in a ventilated façade, with a 25 mm or 50 mm linear air gap to allow the movement of air and drainage of any moisture within the facade.


The aluminium foil restricts fibre migration and offers a class ‘0’ rating. In the event of a fire the intumescent outer edge of the product will expand and close the ventilation gap between the product and the facade preventing the passage of fire and smoke from one compartment to another. 


Features and benefits:

  • Third party approved - IFCC - IFCC 1672
  • Non-combustible core.
  • ‘Dry fit’ solution, no cure time.
  • Fast installation using brackets .

General information

Material

Mineral fibre

Aluminium

Foil

Length

1000 mm

Width

Bespoke

Manufacturer guidance

Width is variable depending on building requirements; consult manufacturer.

Height

75 mm

120 mm

Manufacturer guidance

Thickness.

Uniclass

Pr_25_57_06_56 Mineral wool slab insulationPrimary

CAWS

P12/360 Mineral wool rigid batts

P12/40 Mineral wool rigid batts

P12/41 Mineral wool rigid batts - ablative coated

Product range

Cavity Barriers

Specification data - Mineral wool slab insulation

Standard

To BS EN 1363-1.

Guidance for specification option:

Tested in accordance with ASFP TGD19: “Open State” Cavity Barrier used in External Envelope or Fabric of Buildings.

This test method specifies a procedure for determining the fire resistance of ‘open state’ cavity barriers when subjected to the standard fire exposure conditions and performance criteria stipulated in EN 1363- 1.

This method is applicable to non-loadbearing, horizontally oriented ‘open-state’ cavity barriers, which are used to provide fire separation within cavity voids such as those located between an external envelope and the face of a building. The tests have been undertaken to assess the ability of the Silverliner® OSCB systems to reinstate

the fire resistance rigid/aerated concrete supporting construction.

This is the standard assembly for testing such systems as performance of the barriers can then be classified.

Third-party certification

IFCC - IFCC 1672.

Thickness

75 mm.

120 mm.

Facing

Faced with aluminium foil.

Density

80kg/m³.

Guidance for specification option:

Mineral fibre.

Fire performance

Up to 120 minutes, tested in accordance with ASFP TGD 19.

Ventilation

≤ 5 minutes.

Manufacturer guidance

void closure time

Volume void

≤ 550 mm.

Guidance for specification option:

Total void size.

Air Gap Volume

≤ 50 mm.

Fixings

Three brackets per 1000 mm at 250 mm.

Guidance for specification option:

Length at 390 mm or 635 mm.

Brackets

Stainless steel.

Guidance for specification option:

1.5 mm/ 0.9 mm thickness, 390 mm or 635 mm length. For product size in excess of 300 mm (W) use 635 mm.

Sustainability data

Country of product manufacture

United Kingdom

Material

Mineral fibre

Aluminium

Foil

Third party certifications

IFCC

IFCC

IFCC 1672/S01 - Silverliner OSCB

IFCC

IFCC

IFCC1672 - Silverliner OSCB

Literature

TDS012 - V8 - SilverlinerOSCB - Sep 2024

TDS012 - V8 - SilverlinerOSCB - Sep 2024

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