02392 451111
info@coltinfo.co.uk

Colt 1UL Universal Louvre fixed metal external louvre system

Colt 1UL Universal Louvre is a roll-formed or extruded single (1UL) bank system, used for screening and/or ventilation. It is very often used as plant room louvre, or indeed anywhere where plant needs to be covered up.

1UL is a single bank louvre system designed for screening or cladding applications when rain defence is not of primary importance. Where rain defence is needed, we recommend the use of either 2UL or 3UL.

Description

Colt Universal Louvre is a versatile louvre system providing either screening and/or rain defence in a wide variety of product options, materials and finishes.

Louvre blades form an aerodynamically efficient profile to achieve a high degree of rain defence. Allowance is made for thermal expansion without distortion along the length of each louvre blade. Water drains efficiently onto the cill through the mullions.

Mullions are concealed at maximum 1250mm centres and the points of support along their length are set in accordance with prevailing site wind pressures (as calculated and specified by a structural engineer).

System Types

  • Universal Louvre 1UL/SH - Single bank shallow section, front louvres at 50mm pitch
  • Universal Louvre 1UL/DH - Single bank deep section, front louvres at 100mm pitch

Configuration

  • Horizontal
  • Horizontal inverted
  • Vertical

Material

  • Aluminium
  • Mild steel
  • Stainless steel

Texture

  • Plain
  • Perforated
  • Stucco embossed

Colours / finishes options

  • Mill aluminium
  • Anodised aluminium
  • Polyester powder coated to a RAL colour, list of colours upon request
  • PVF2

Paint coverage

  • Not relevant
  • Total
  • Partial

Guards

  • None
  • Aluminium bird guard
  • Galvanised steel bird guard
  • Aluminium fly guard
  • Stainless steel insect mesh

Blanking panels

  • None
  • Single skin aluminium panel, mill finish
  • Single skin aluminium panel with external decorative polyester powder paint finish to match louvres
  • Insulated panel

Noise control

Accessories

  • None
  • Visible frame double door
  • Visible frame single door
  • Concealed frame double door
  • Concealed frame single door
  • Turret unit(s)
  • Circular panel(s)
  • Triangular panel(s)

Please contact us for more information relating to the application, specification, installation and servicing of this product.

Subscribe to the blog

© 2025 Colt International Licensing Limited. - People feel better in Colt conditions