Delta Series ® Perforated Louvre

Distinctive Features:

  • Available in a wide range of colours of the Colorbond® steel, Colorbond® Ultra & Metallic and the Zincalume® standard range
  • NEW: Woodgrain range
  • Ideal for inverted louvre situations (eg: plant screens)
  • Provide blanked louvres and cladding when unperforated
  • Perforations eliminate the need for bird/vermin mesh
  • High-strength perforated steel louvre with excellent impact resistance

Attention to Detail:

  • Single Stage – 48% free open area
  • Two Stage 42% free open area
  • Perforation 69.4% free open area
  • 125mm blade pitch
  • High Security
  • Vermin Proof (11 x 11 aperture)
  • Maximum blade length: 7200mm
  • Maximum side channel length: 4000mm
  • Maximum blade span: 2400
  • High tensile Steel blades can be run without perforation for a blanked louvre application
  • Rw rating of 3

High Tensile Steel Louvres

Louvreclad’s Delta Series® is a high-strength roll formed perforated steel louvre that provides high security while allowing good ventilation. The blades are designed to lock together to make a virtually impenetrable wall. The front face of the Louvre is continuously supported by the perforated area beneath the blade, making it ideal for trafficable areas.

Stronger than extruded aluminium louvres  

Incidental impacts of up to 140 kg force on the front face will not damage the steel blades. Therefore The Delta Series® will maintain its structure much longer than extruded aluminium louvres.

Delta Series®  can also be specified without ventilation by removing the perforations. This is used for architectural features such as a building cladding, privacy screens, or where blanked louvres are required.

The Delta Series® is a fixed, single stage louvre, or by the addition of Venus® two stage louvre, it can be totally waterproof. Roll formed for consistency, strength and lower production costs, the blades are designed with 11 x 11 perforations to provide integrated vermin proofing so there is no need for bird wire or security mesh with the Delta Series®.

Removable insect screens can be fitted to the rear of the louvres if required.

Performance Tested to AS/NZS 4740:2000

Louvreclad Delta Series® Single Stage is a 125mm pitch high-strength roll formed perforated steel weather louvre system achieves a Class D2 rating making it an excellent screening and ventilation louvre for applications that require good air flow and great security.


Louvreclad Delta Series® Two Stage Louvre is a 125mm pitch(1st Stage) Plus (62.5mm pitch second stage) high-strength roll formed perforated steel weather louvre system achieves a Class A3 rating.  This makes it the optimal screening and ventilation louvre for applications that require good air flow and excellent weather resistance.

Aerodynamics Simulation

Rain Defence Simulation

Two Stage Aerodynamics Simulation

Two-stage Rain Defence Simulation

Early Contractor Involvement

Early Contractor Involvement (ECI) can save money, save time and ensure the best outcome.

Get in touch with one of our experts at design stage and ensure the success of your project.  Whether it is a highly bespoke & complex brief that requires testing & prototyping or a simple design needing clarification around detailing, to achieve a high-end premium finish, attention-to-detail is essential.

Related Projects:

Eastland Shopping Centre – Ringwood VIC

Eagle Stadium – Werribee VIC

85 Hudon Road – Albion QLD

Quest Apartments – Woolloongabba QLD

AFP Office Building – Brisbane Airport, QLD

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