Silverliner® Open State Cavity Barrier (OSCB) is 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, typically used in horizontal applications at floor junctions and around window openings.
The Silverliner® OSCB allows for 25mm or 50mm linear air gap to ensure movement of air and drain any moisture within the façade.
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 façade preventing the passage of fire and smoke from one compartment to another.
The Product comes in four different versions, achieving different air gaps and fire performance as follows:-
ASFP TGD19:“Open State” Cavity Barrier used in External Envelope or Fabric of Buildings.
This test exposes the cavity barrier to a specified regime of heating and pressure specified in EN1363-1.
|Total Void Size||≤ 550mm|
|Air Gap||≤ 50mm|
|Fire Resistance||Up to 120 minutes tested in accordance with ASFP TGD 19|
|Ventilation Void Closure Time||≤ 5 minutes|
1000mm x 75mm (width is variable depending on building requirements)
1000mm x 120mm (width is variable depending on building requirements)
|Density||Mineral fibre 80kg/m³|
|Brackets||Steel - 1.5mm thickness, 390mm or 635mm length For product size in excess of 300mm (w) use 635mm|
|Fixings||3 brackets per 1000mm @250mm centres (length
390mm or 635mm)
Block, masonry, aerated concrete and concrete must be within a density range of 450 to 2300kg/m³. CP
(cement particle) board and concrete cladding must be within a density range of 450 to 2300kg/m³. Timber
must have a minimum density of 510kg/m³. All substrates must have at least the same Fire Resistance as is
required by the fire stopping system.