mechanical air louvre 40mm single bank

Product Description

The Thermosash high performance 40mm single bank mechanical louvre system for use in doors.  These louvres are commonly specified as fresh air inlets for mechanical plant and mechanical plant screening. Single bank are not waterproof, and when outdoors, will not offer a dry environment within the clad space.

Product: MAL-40S  |  [Type 7]

Profile Section:

Section Sizes

  • Single-bank 40mm

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.

Integrated Elements

Vermin / insect guards can be integrated into this single bank louvre type.


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 contact us to discuss your project early in conceptual development.

  • Specify double or triple bank - when a greater degree of weather proofing is required.


  • 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.

Relevant Projects

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UOA Engineering - 405