Terminology

1UL - Single Bank Louvre
2UL - Double Bank Louvre
3UL - Triple Bank Louvre
S - Shallow 50mm Pitch Louvre Blade
M - Medium 75mm Pitch Louvre Blade
D - Deep 100mm Pitch Louvre Blade
H - Horizontal
V - Vertical Blade
I - Inverted Blade

eg. 1UL/SHI = 50mm single bank horizontal inverted blades

When enhanced weathering is required. Two independent banks of blades positioned to allow integral rainwater capture and draining whilst providing excellent airflow. System can be used for both inlet and extract airflow requirements.

Key Characteristics

  • Uniformity of blade profile (across the Colt Universal Louvre System). Whether single, double or triple bank the external aesthetic is identical allowing the integration of different airflow and weathering requirements to be met whilst maintaining a continuous external appearance).
  • Two independent banks of blades designed to separate airborne rain from the airflow.
  • Integral drainage system to allow ‘captured’ airborne rain to be effectively removed from the airflow and drained to the cill and out to the building’s external façade.
  • Excellent airflow performance.
  • Integrated single and double doors are available.
  • Mitred corners are available to provide a continuous appearance whether internal or external corners are required.
  • Available in 50mm pitch (2UL/SH) or 100mm pitch (2UL/DH)

2UL/SH - 50mm pitch louvre

Comprising head, jamb and cill flashings with roll formed blades at 50mm pitch both externally and internally, clipped to concealed mullions at maximum 1250mm centres to provide a continuous external appearance. Inner blades set within self draining modules.

  • Aerodynamic coefficient on Inlet – 0.308
  • Aerodynamic coefficient on Extract – 0.250
  • HEVAC weathering classification – A2 (up to 1.0m/s velocity), B2 (up to 2.2m/s inlet velocity), C2 (up to 3.0m/s intake velocity) & D2 (up to 3.5m/s intake velocity)

2UL/DH - 100mm pitch louvre

Comprising head, jamb and cill flashings with roll formed blades at 100mm pitch externally and 50mm pitch internally, clipped to concealed mullions at maximum 1250mm centres to provide a continuous external appearance. Inner blades set within self draining modules.

  • Aerodynamic coefficient on Inlet – 0.260
  • Aerodynamic coefficient on Extract – 0.250
  • HEVAC weathering classification – A2 (up to 1.0m/s velocity), B2 (up to 2.2m/s inlet velocity), C2 (up to 3.0m/s intake velocity) & D2 (up to 3.5m/s intake velocity).

Contact Us

ALPS Louvres,
Unit C,
12 Downley Road,
Havant, Hampshire
PO9 2NJ

+44 (0)23 924 80055
sales@alpslouvres.co.uk

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