Product Description

Our CW600 system is a high performance American stick wall product which provides flush glazed vertical aesthetics and mechanically entrapped horizontals. This curtainwall system has been approved by Dow Corning for the application of their one-part structural silicone products. The CW600 system (and the subsequently developed CW900 system) has been designed to accommodate granite and composite aluminium panels.

The concept is best expressed in photographs and those shown will illustrate only a few of the building claddings erected by Thermosash. It is usual in both these designs for the internal head and cill linings to be part of the curtainwall. All internal aluminium has a thermal discontinuity from the external aluminium.

Section Sizes

  • 100 / 150mm Mullions
  • 100 / 150mm Transoms

Performance / Testing

Thermosash owns and operates the largest fa├žade testing facility in New Zealand where we test our systems and custom designed suites to ensure compliance with the below codes or project specific requirements:

  • AS/NZS1170 (Structural Design Actions)
  • NZS4211 (Performance of Windows)
  • NZS4223 (Glazing in Buildings)
  • NZS/AS4284:2008 (Water / Air Pressure/ Air Leakage - Meets and exceeds minimum requirements)

All the Thermosash suites are independently laboratory tested to IANZ (International Accreditation New Zealand). Test certificates are available on request.

Maximum Spanning Ability

Thermosash specifically engineers the best suite option for your project taking into consideration span, structural system, and environmental loads (e.g. wind). The spanning ability will vary depending on the above.

Thermosash Suites are recognized as having the largest spanning systems on the market due to our specific engineering capability and the customised nature of the work we complete.


The standard warranty is 10 years from the date of practical completion for these products. This covers workmanship and weather tightness, providing the subcontract includes fabrication, installation and glazing of all components, and the maintenance schedule is adhered to.


Maintaining glass, metals and stone are all particular to the environment that they are placed in: eg. marine, environmental pollution, exposure to natural washing, etc.

It is recommended by almost all material suppliers that building washing should occur every 3-6 months to prevent staining to glass and prevent environmental pollutants from corroding metals and to maintain the material warranties.

A full maintenance manual is provided on completion of a project for all the elements integrated within a project. Compliance to a maintenance schedule is essential to maintaining the quality of the installed product over time. Using Thermosash-approved facade maintenance contractor/personnel ensures the highest standards are met.

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Key Features

  • Integrates with the CW400 suite.
  • Designed to provide an alternative to the "glass box" effect of curtainwalls.
  • Enables the cladding of the building to keep pace with fast primary structure erection.
  • Designed to reduce significantly the aluminium showing on the outside of the building.
  • Provide a product which could include alternative cladding materials to glass.


We recommend using Masterspec 4211TS Curtainwall when specifying this suite.


  • Polyester powder coat - both standard and special colours available.
  • Anodised - all anodised colours available - commercial grade 20 micron finish recommended.
  • PVF2 Fluorocarbon finishes - available on request.

Relevant Projects

Telstra Clear Building - Smales Farm

Telstra Clear Building - Smales Farm


Warren & Mahoney

Arrow International


TVNZ Television Network Centre

TVNZ Television Network Centre


Warren & Mahoney


Vodafone Auckland

Vodafone Auckland



Thermosash Commercial Ltd


Dunedin Airport

Dunedin Airport


Craig Craig Moller

Arrow International