SIDERISE CW-FB curtain wall fireboard

SIDERISE CW-FB curtain wall fireboard

Siderise Group Third party certifications:
  • Certifire Certificate

    Certifire Certificate

    Certificate type

  • QA Certificate

    QA Certificate

    Certificate type

SIDERISE CW-FB is a high performance curtain wall fireboard for use in façade assemblies that require enhanced fire resistance performance, used in conjunction with SIDERISE CW-FS.

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Cavity barriers and fire stops to maintain continuity of fire resistance by sealing the gap between the compartment floors or walls and the external curtain wall both horizontally and vertically. The method of manufacture provides a resilient lateral compression property which assists installation, ensures the requisite tight fit and thereby enhances fire integrity. The materials comprise a one-piece product having a pre-compressed non-combustible rock fibre core. The products also have integral aluminium foil facings to provide a Class 'O' rating and excellent resistance to smoke. Lamatherm CW-FS SIDERISE Perimeter Barriers & Firestops for Curtain Walling is manufactured and designed to accommodate full facade movement, due to normal use loads, wind seismic and fire conditions Can be used in conjunction with SIDERISE CW-AB Acoustic Barrier Overlay - Facades (formerly Lamatherm CW-AB acoustic barriers).

Features and benefits:

  • Third-party approved options: Certifire & Intertek certification.
  • Economical and easy to install.
  • Market leading fire resistance and smoke seal.
  • Systems can offer tested fire rating options ranging from 30 mins to 3 hours.
  • Suitable for cavities/void widths up to 600 mm.
  • Qualified acoustic performance.
  • Quality assured to BS EN ISO 9001.
  • Suitable for both horizontal and vertical applications.
  • Unique product construction provides ability to accommodate facade movement.
  • Supplied in full sheets or pre-cut in strips to suit specific void dimensions.
  • Tested to EN1364 Part 4 in accordance with ETAG026 for up to 210 minutes.

General information

Uniclass 2015

Pr_25_80_81_51 Mineral wool fire-stoppingPrimary


H11/780 Thermal insulation

P12/360 Mineral wool rigid batts

P12/40 Mineral wool rigid batts

Specification data - Mineral wool fire-stopping

Product Reference

CW-CB 30

75 mm thickness, 21 dB (Rw).

CW-FS 60

90 mm thickness, 22 dB (Rw).

CW-FS 120

120 mm thickness, 25 dB (Rw).

CW-FS 180

150 mm thickness, 26 dB (Rw) - Assessed value by either UKAS accredited Laboratories or IOA registered Acoustic Engineers.

Fixing brackets

Insert requirement, consult manufacturer's literature for more information.

Standard product features


1200 x1200 mm. Pre-cut products are available in 1 mm increments of width to provide a tight compressive fit within the cavity; contact manufacturer for more information.

Each pre-cut CW unit is supplied with fixing brackets to locate the material into position. The standard fixing brackets are supplied in 1 mm galvanized carbon (mild) steel in a flat form that is complete with a pre-notched facility for folding on site.


1200 mm.

Thermal conductivity:

0.038 W/m·K.

Digital objects
Platform Compatible Version Certified to




Revit 2016


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Third party certifications

Additional certifications:

  • Intertek: WHI20-32944302 : To EN 13501-1
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