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Siderise RH & RV

Siderise is a cavity barrier system specifically developed to meet the requirements to be used with drained and ventilated cladding. Their use ensures that the system will drain any moisture within the facade construction, by maintaining airflow. In the event of fire, provide an effective hot smoke and fire seal. 

Siderise cavity barriers consist of a non-combustible stonewool lamella core, with reinforced aluminium foil faces. This primary seal has a reaction to fire performance to Class 'Al'. The exposed leading edge is also sealed with aluminium foil. Whilst the base material is water repellent and non-hygroscopic, this predominantly enclosed arrangement affords an added degree of weather protection to the core material.

Siderise'Open State' cavity barriers incorporate a continuous high-performance reactive intumescent strip which is bonded to the leading edge. The intumescent material has a reaction to fire performance to Class 'E'. 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 the barrier and the rear of the cladding. 

Key Features
  • Market-leading fire resistance and smoke seal. Fast intumescent reaction times with reaction times as low as 2 minutes
  • Site modifiable 
  • Suitable for horizontal and vertical applications
  • Unique product provides the ability to accommodate facade movement
  • Simple and quick to install
  • Safe and simple
Scope of Use
  • Available for use in all corrosion zones
  • Available for use in all buildings over 60m


Limitations on Use

The use of this product needs to be specified and verified by a suitably accredited fire designer. 



Statement of Building Code Compliance

The Siderise Rainscreen Cladding Cavity Fire Barriers offer application options to ensure full compliance with NZBC C/AS2:5:8:5. The product is intended for highrise fire safety, so is suitable as a solution on buildings 0-60m and above. 

In-Service History


We have some projects already existing in NZ however as SIDERISE is fairly new to the NZ market. Overseas SIDERISE has been present and used in projects for over 30 years. 

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Importer and distributors of shingle roofing, cladding, screening and lining across New Zealand, with brands including Owens Corning, AliClad, Innowood, Aliwood, Equitone, Frontek and Alucobond.

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