Product Overview
The EWL is a single bank extruded weather louvre designed for high-performance rain defense, suitable for applications requiring both screening and ventilation. It features a 50mm pitch and is available in continuous runs for larger applications. The louvre can be mounted both horizontally and vertically, with versatile fixing points and pre-assembly for quick installation.

Features & Benefits

• Single bank extruded louvre system
• Aluminium mullion clips
• High performance rain defense
• 50mm pitch
• Pre-assembly for quick installation
• Versatile fixing points
• Available in continuous runs
• Horizontal and vertical mounting options

Weather Performance
The EWL louvre has been tested in accordance with EN 13030 standards. It demonstrates high rain defense effectiveness, achieving Class A ratings at various face velocities, with a coefficient of variation (CV) of 0.253 for horizontal and 0.287 for vertical installations.

Rain Defence Effectiveness

• Class A: 100% effectiveness, 0.00 l/hr/m³ rain entry
• Class B: 98% effectiveness, 1.50 l/hr/m³ rain entry
• Class C: 90% effectiveness, 7.50 l/hr/m³ rain entry
• Class D: Below 80% effectiveness, 22.5 l/hr/m³ rain entry

Aerodynamic Performance

• Class 1: Coefficient 0.40 and above
• Class 2: Coefficient 0.30 to 0.399
• Class 3: Coefficient 0.20 to 0.299
• Class 4: Below 0.20

Conclusion
The EWL weather louvre offers robust rain defense and versatile installation options, making it suitable for a variety of applications requiring effective ventilation and screening.