2UL
Product Information
Colt 2UL is a versatile double‑bank louvre system offering a balance of enhanced rain defence and strong airflow performance. Available in shallow (50 mm) or deep (100 mm) blade pitches, it’s ideal for plant room screening and architectural façades. Featuring concealed drainage via hollow mullions and a clip‑on design for thermal movement, it delivers durable, maintenance‑free performance in challenging weather conditions.
Product Highlights
- Double‑bank blade design boosts rain defence while maintaining airflow
- Available in 50 mm or 100 mm blade pitch for design flexibility
- Integral drainage into vertical mullions improves weather resilience
- Clip‑on blade construction accommodates thermal movement, simplifies install
- Corrosion‑resistant aluminium, galvanised steel, or stainless materials
- Supports architectural integration with accessories like guards and panels
Technical Information
Performance classes
- Rain Defence Classification: Class A to Class D depending on air velocity (Tested to BS EN 13030:2001)
- Aerodynamic Classification: Class 3 (Cv approx. 0.21)
- Airflow Resistance: Low to moderate resistance with enhanced weather protection
- Free Area: 57% (varies by size and pitch) using Industry standard measurement
Applications
- Rooftop plant room enclosures
- Air intake louvres for HVAC and ventilation systems
- Industrial and commercial buildings needing both airflow and rain defence
- Architectural façades requiring concealed or integrated drainage
Materials & Finishes
Materials:
- Aluminium (standard – corrosion-resistant)
- Mild or galvanised steel or stainless steel (custom options)
Finish Options:
- Mill finish
- Polyester powder coated to standard RAL colours
- Anodised aluminium
- Pre-coated steel to match cladding
Accessories
- Bird guards (galvanised or stainless steel mesh)
- Insect mesh and/or Fly Guard
- Blanking or insulated panels
- Acoustic modules available
- Doors, turrets, and support structures for larger applications
Installation
- Supplied pre-assembled or in kit form
- Designed for fast installation with concealed fixings
- Clip-on blade system accommodates thermal movement
- Low maintenance – periodic cleaning recommended to remove debris
Compliance
- Tested to BS EN 13030:2001 & HEVAC 4th Edition (Test Conditions: 13m/s wind, 75mm/hr simulated rainfall) and manufactured under ISO 9001.
- Simulated Conditions: 13 m/s wind, 75 mm/h rainfall
- Aerodynamic Classification: Cv Class 2 (approx. 0.308 inlet / 0.285 exhaust)
Rain Defence Classification:
- Class A at ≤0.5m/s inlet velocity
- Class B at 1.0m/s
- Class C above 1.5m/s
General Information
- Blade Type: Double-bank roll-formed blades
Blade Pitch:
- 50 mm (shallow)
- 100 mm (deep)
- Blade Profile: Chevron or aerofoil profile
- Drainage System: Integrated into hollow mullions for effective rainwater removal
- Free Area: Typically 57% depending on configuration (varies by size and pitch) using Industry standard measurement
- Mounting Options: Surface-mounted, recessed, or integrated into cladding
- Panel Sizes: Modular – customisable to suit building design
Panel Depth: 143mm shallow -198mm deep, not including cill projection.
Contact Us
For more information about the 2UL, or to find out how Colt can help with your project, get in touch with our team today.