mechanical air louvre 156mm triple bank

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 integrated 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

Performance / Testing

  • BS EN 13030:2001

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.

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

Integrated Elements

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


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.

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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


Thermosash Mechanical Air Louvres - Brochure

November 2023


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 using Masterpec 4211TS Curtainwalls and 4251TS Commercial Windows.

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


  • 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.