MAL-156T

mechanical air louvre 156mm triple bank

100Mm Louvre Triple

Product Description

The Thermosash high performance 156mm triple bank mechanical louvre systems integrate into the Thermosash range of curtainwall and commercial window systems for façade mechanical air inlet and extract requirements. These louvres are commonly specified as fresh air inlets for mechanical plant and mechanical plant screening. A Triple bank will offer a greater degree of weather proofing than a single bank.

Product: MAL-156T  |  [Type 4]

Section Profile

Section Sizes

  • Triple bank 156mm

Variation to basic design

  • Extended sill
  • Insulated backpan for plenum attachment
  • Hinged frame
  • Front and rear security bars
  • Filter racks
  • A variety of vermin / bird / insect screens to all louvre types

Performance / Testing

  • BS EN 13030:2001*

Weathering data - performance tested

*BS EN 13030:2001 is a European standard specifying a method for measuring performance of louvres subjected to simulated rain and wind pressures, with and without airflow through the louvre under test.
Face Velocity - resistance to ingress of rain Classes A - D (classes indicate highest water resistance to least water resistance).
Coefficient entry / discharge - resistance to airflow Classes 1 - 4 (classes indicate least air resistance to highest air resistance).

Maximum Spanning Ability

The spanning ability will vary depending on span required, structural system, and environmental loads (e.g. wind). Thermosash specifically engineers the best design options for your project.

Integrated Elements

Thermosash Mechanical Air Louvres integrate into the Thermosash range of curtainwall and Commercial window and doors systems.

Low-Carbon Aluminium

Thermosash partners with a local NZ-owned extruder achieving a lower carbon footprint than the global average - offering reduced upfront carbon emissions. (find out more about our Sustainable Aluminium).

Thermosash manufacture all of our own façade components in New Zealand, and primarily source materials were available from the New Zealand market to reduce transport distances and emissions from freight. We recycle 100% of all our metal waste.

Warranty

10 years from the date of practical completion.
Min 5 years for design, engineering, quality of materials, fabrication, installation and performance.
Warranty is provided in the form of a site-specific producer statement (PS3 Construction).

Warranty commences from the date of practical completion of the contract works.
All warranties are subject to service and maintenance requirements.

Maintenance

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

  • Performance Classification BS EN 13030:2001
  • High performance frame system with drainable frame, collects and removes water
  • Architecturally styled hidden mullions allowing continuous line appearance, span varies based on site wind load and blade selection.
  • Aluminium powdercoated / anodised construction for low maintenance and high corrosion resistance
  • Seamless integration with Thermosash systems

Brochures

Thermosash Mechanical Air Louvres Product Disclosure - documents package

2026

Thermosash Mechanical Air Louvres - Brochure

September 2025

Specification

Due to the potential unique and high-performance design requirements, a bespoke specification will be created by a mechanical or facade engineer consultant.

When integrated with Thermosash suites and referencing the inclusion we recommend:

Masterspec 4521TS Thermosash Commercial Windows & Doors

or for integration into our curtainwall systems: Masterspec 4211TS Thermosash Curtain Walling 

Please call us to discuss your project early in conceptual development.

Finishes

  • Extrusions are high performance polyester powdercoated or anodised, prior to manufacturing.
  • Polyester powder organic coating in accordance with WGANZ PQAS and AS 3715, and AAMA 2604.