OSCI | Open State Cassette Insert | Façades | Products | Siderise

Siderise OSCI | Open State Cassette Insert

Siderise Open State Cassette Inserts (OSCI) are designed for use in cassette panel cladding systems.

Siderise OSCI can be used horizontally or vertically as part of a cladding system. It is applied directly to the internal surface of the cassette panel to simplify the detailing and installation of adjacent cavity barriers and/or to ensure that the ventilation air gap is dimensioned within permissible limits.

  • Tested in multiple BS 8414 & NFPA 285 System Tests
  • Can be used in combination with either RH25 or RH50 (horizontal), or RV (vertical) cavity barriers
  • Range of thicknesses and widths to accommodate a wide array of Cassette Panel Cladding Systems
  • Classified A2-s1, d0 to EN 13501-1

OSCI are positioned parallel and aligned centrally to Siderise ‘RH’ or ‘RV’ Cavity Barriers, taking into account the specification of the cladding system assembly.

Typically, this requires consideration of the specification and configuration of the cladding panels, the positioning of the support rails or similar steelwork, and/or hook-on or bracket arrangements for panel support.


For Technical Support with this Siderise Insulation solution please contact:


T:+44 (0) 1656 335819

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