Home > Companies > Siderise Group > SIDERISE RH and RV Cavity Barriers

Cavity barriers for drained and ventilated facades, available for vertical or horizontal applications. Their use ensures that the system will drain any moisture within the façade construction, whilst maintaining airflow and, in the event of fire, provide an effective hot smoke and fire seal.

Features:

  • Allows continuous ventilation and drainage behind external envelope.
  • Provides up to 120 minutes fire integrity and insulation.
  • Rapid seal closure times.
  • Fully compliant and meets ASFP and CWCT guidelines.
  • Suitable for both horizontal and vertical applications.
  • Horizontal barriers can incorporate up to 50 mm continuous ventilated air space.
  • Vertical barriers accommodate cladding movement.
  • Tested utilizing the principles of BS 476-20 and BS EN 1366-4.

SIDERISE RH Open State Horizontal Cavity Barriers (formerly Lamatherm CW-RS):

This consists of a non-combustible stonewool lamella core, with reinforced aluminium foil faces, giving an overall reaction to fire performance to Class A1. The exposed leading edge is also sealed with aluminium foil. Whilst the base material is water repellent and non-hydroscopic, this predominantly enclosed arrangement affords an added degree of weather protection to the core material.

It incorporates a continuous high performance intumescent strip which is bonded to the leading edge. In the event of exposure to fire, the intumescent rapidly expands and fully seals the purposely designed ventilation gap, formed at the time of installation, between barrier and the rear of the cladding. This offers an excellent resistance to the passage of both smoke and fire. The leading edge of the horizontal cavity barriers is encapsulated in a weather resistant polymer film.

Both options are available with either galvanized mild steel or stainless steel fixing brackets as part of the system.

SIDERISE RV Vertical Cavity Barriers (formerly Lamatherm CW-RS):

This consists of a non-combustible stonewool lamella core, with reinforced aluminium foil faces, giving an overall reaction to fire performance to Class A1. They are used to full fill the void between the external envelope and internal structure. The construction offers an excellent resistance to the passage of both smoke and fire. Additionally, by fully sealing the void, they assist ventilated facades to function by maintaining air-pressurization compartmentation.

The stonewool lamella core construction enables the vertical barriers to accommodate the serviceability movement normally associated with rainscreen facades. The leading edge compresses directly against the external envelope. No intumescent strip is required.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-45-70/465 Sleeved mineral wool small cavity barriers

NBS Specification

NBS Buliding logo
This product is associated with the following NBS clauses:

Product specification

An important note about specifying

Manufacturer

Name:

Siderise Group

Tel:

+44 (0)1656 730833

Product reference

[RH25-120/90]
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Fire rating: Integrity (E) - 120 minutes, Insulation (I) - 90 minutes. For horizontal cavity barriers for voids up to 50 mm.
[RH25-90/30]
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Fire rating: Integrity (E) - 90 minutes, Insulation (I) - 30 minutes. For horizontal cavity barriers for voids up to 50 mm.
[RH25-90/60]
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Fire rating: Integrity (E) - 90 minutes, Insulation (I) - 60 minutes. For horizontal cavity barriers for voids up to 50 mm.
[RH25-120/60]
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Fire rating: Integrity (E) - 120 minutes, Insulation (I) - 60 minutes. For horizontal cavity barriers for voids up to 50 mm.
[RH25G-90/30]
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Fire rating: Integrity (E) - 90 minutes, Insulation (I) - 30 minutes. For horizontal cavity barriers with galvanized brackets for voids between 50 - 300 mm.
[RH25G-90/60]
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Fire rating: Integrity (E) - 90 minutes, Insulation (I) - 60 minutes. For horizontal cavity barriers with galvanized brackets for voids between 50 - 300 mm.
[RH25G-120/60]
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Fire rating: Integrity (E) - 120 minutes, Insulation (I) - 60 minutes. For horizontal cavity barriers with galvanized brackets for voids between 50 - 300 mm.
[RH50G-30/30]
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Fire rating: Integrity (E) - 30 minutes, Insulation (I) - 30 minutes. For horizontal cavity barriers with galvanized brackets for voids between 50 - 300 mm.
[RH25S-90/30]
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Fire rating: Integrity (E) - 90 minutes, Insulation (I) - 30 minutes. For horizontal cavity barriers with stainless steel brackets for voids between 50 - 300 mm.
[RH25S-90/60]
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Fire rating: Integrity (E) - 90 minutes, Insulation (I) - 60 minutes. For horizontal cavity barriers with stainless steel brackets for voids between 50 - 300 mm.
[RH25S-120/60]
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Fire rating: Integrity (E) - 120 minutes, Insulation (I) - 60 minutes. For horizontal cavity barriers with stainless steel brackets for voids between 50 - 300 mm.
[RH50S-30/30]
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Fire rating: Integrity (E) - 30 minutes, Insulation (I) - 30 minutes. For horizontal cavity barriers with stainless steel brackets for voids between 50 - 300 mm.
[RV-90/30]
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Fire rating: Integrity (E) - 90 minutes, Insulation (I) - 30 minutes. For vertical cavity barriers.
[RV-90/60]
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Fire rating: Integrity (E) - 90 minutes, Insulation (I) - 60 minutes. For vertical cavity barriers.
[RV-120/120]
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Fire rating: Integrity (E) - 120 minutes, Insulation (I) - 120 minutes. For vertical cavity barriers.

Fixing brackets

[ ______ ]

Manufacturer details

Forge Industrial Estate,
Maesteg,
Bridgend,
Mid Glamorgan, CF34 0AY
Tel +44 (0)1656 730833
Fax +44 (0)1656 812509
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