Glass Lourves Window
WHY is Lourves Glass Window is great for you?
It’s not uncommon to see short, wide windows (particularly Altair Louvre Windows) installed near the ceiling and above head height. These windows are commonly known as highlight or clerestory windows and besides looking great, they also offer a number of specific benefits.
Create a thermal chimney to naturally cool your building.
Hot air rises. Inside a building this means that the air near the ceiling is generally warmer than the air near the floor. Positioning windows near the ceiling provides a way for warm air to flow out of the building which encourages cool, outside air to be drawn in through the lower windows. This ‘thermal chimney’ effect avoids warm air being re-circulated inside the building resulting in a more comfortable living space. Thermal chimneys are especially beneficial on still days when there is no breeze to generate cross-flow ventilation.
Very short, very wide windows are popular for this application and Altair Louvres are an obvious choice not only because they maximise ventilation, but also because they remain functional, unlike other window types which require more square shapes to function properly.
PRODUCT SPECIFICATION
Model No
LOURVES WINDOW
Material
Frame: 6063-T5 Extruded aluminum.
Clips: UV stabilised polypropylene
Handle: UV Stabilised acetal
Glass Thickness
5mm float glass
Accessories:
Weatherstripping
Mullions
Performance Quality Test Certification
AS2047-1999 “ Windows in Buildings”
Wind & Water Performance
Palmair Louvre Component System Single Bay
| Table Cell | 1000Pa Design Wind Speed / 150Pa Water Pass (Max Span mm) | 1000Pa Design Wind Speed / 150Pa Water Pass (Max Louvre Height mm) | 1500Pa Design Wind Speed / 200Pa Water Pass (Max Span mm) | 1500Pa Design Wind Speed / 200Pa Water Pass (Max Louvre Height mm) | 2200Pa Design Wind Speed / 200Pa Water Pass (Max Span mm) | 2200Pa Design Wind Speed / 200Pa Water Pass (Max Louvre Height mm) |
| 152mm x 6mm glass or aluminium blade | 865 | 2129 | 707 | 2129 | 580 | 1709 |
| 102mm x 6mm lass or aluminium blade | 720 | 1988 | 589 | 1988 | 468 | 1098 |
Mullion Type
| Table Cell | 1000Pa Design Wind Speed / 150Pa Water Pass (Max Span mm) | 1000Pa Design Wind Speed / 150Pa Water Pass (Max Louvre Height mm) | 1500Pa Design Wind Speed / 200Pa Water Pass (Max Span mm) | 1500Pa Design Wind Speed / 200Pa Water Pass (Max Louvre Height mm) | 2200Pa Design Wind Speed / 200Pa Water Pass (Max Span mm) | 2200Pa Design Wind Speed / 200Pa Water Pass (Max Louvre Height mm) |
| Palmair Mullion Strip | – | 1145 | – | 1005 | – | 865 |
| Palmair Box Mullion | – | 1450 | – | 1361 | – | 1361 |
Benefit 2: Ventilation, light and privacy.
Positioning windows above head height results in vertically angled sightlines. This means that the only thing that neighbours and passers-by can see through the window is your ceiling! This privacy removes the need for blinds or curtains on windows positioned up high and allows ventilation to be maximised while maintaining privacy.
Another often unexpected benefit of windows positioned up high is that they give pleasant diffused light. Being positioned up high generally results in the window being close up to the eaves of the building. As a result the eaves fully shade the windows for most of the day, resulting in a pleasant glow of diffused light rather than dazzling shafts of direct sunlight.
Benefit 3: Light, ventilation and security.
There are plenty of options for making Altair Louvre Windows more secure (see our blog post on “Impenetrable Security” for more info), but the simple fact is that a window that is out of reach is a more difficult and therefore unpopular target. This allows windows installed up high to be confidently left open, knowing that even if a potential intruder manages to climb up to and through the window, they would still face a significant drop down to the inside floor below the window so are most likely to ignore highlight and clerestory windows.
| No Of Blades | Height (mm) No W Strip | Height (mm) with W Strip |
| 3 | 292 | 297 |
| 4 | 381 | 386 |
| 5 | 470 | 475 |
| 6 | 559 | 564 |
| 7 | 648 | 653 |
| 8 | 737 | 742 |
| 9 | 826 | 831 |
| 10 | 915 | 920 |
| 11 | 1004 | 1009 |
| 12 | 1093 | 1098 |
| 13 | 1182 | 1187 |
The Palmair 152mm fixed clip louvre system provides blades fixed at angle of 48 degrees every 89mm, for permanent ventilation. The fixed louvre is used where permanent ventilation, light, privacy, or a degree of weather proofing is required. Although the fixed clip louvre does not meet water penetration requirements, the angle and positioning of the blade holder ensure sufficient cover from adverse weather conditions.
The injection mold blade holder is designed to accept 5 to 6.38mm glass, aluminium or timber blades. The recommended maximum span of the blades is 90mm, thoughened glass is also an option for higher wind road areas.
Selecting The Right Aluminium Finish
Surface finishes are either Polyester powder coated (50 mm minimum thickness) or anodised (minimum 15 mm thickness)
Unless otherwise specified all Breezway products are finished with standard powder coat formulations from leading powder suppliers. However, overtime there will be weathering off the finish, resulting in a gradual change in appeareance. This will be evident loss in gloss, chalking, color change and erosion of powder coating. Selecting the right powder for the atmospheric conditions of the site together with correct maintenance will be critical to the ongoing appearance of the finish.
The application of high durability powder will reduce this deterioration and is essential for severe industrial, coastal or tropical environment.
Note that industry accepted color variation can occur during the aluminium anodising process.
Standard Aluminium Finished
| Alumnium Finished | RAL Code |
| Natural Anodized | – |
| White Powder Coat | 9016 |
| Black Powder Coat | 9005 |
For other aluminium finish option including wod grain powder coated finishes and high performance finishes suit to severe industrial coastal or tropical environment, please contact Breezway.
Clip And Handle Color
Black
White
Misty Grey
Natural Anodized
Other clip and handle color are available but subject to minimum order quantity.
Palmair Compenent System
Gallery
Available in 102mm and 152mm to suit glass, aluminium or timber blades
Weather Strip System
Light Duty Mullion
34 x 1.5mm Louvre Gallery simply clip to Mullion
Medium Duty Mullion
35 x 24mm Louvre Gallery simply clip to Mullion
6mm Glass Blade
6mm Hollow Extruded Aluminium Blade
Recommended Specification
The louvres shall be “Palmair Louvres” by Breezway
The Louvres Gallery Channel is to be manufactured from extruded aluminium alloy 6063 T5. The blade holding clips are to be UV stabalised polypropylene and activated by extruded aluminium alloy 6063 T5 pantograph operating bars. Handles are to be manufactured from acetal.
The blade holding clips and the operating mechanism shall be replaceable.
Weatherstrip complete with coextruded seal shall be fitted to manufacturer’s specification with an approved sealant
to head and seal each lourves set.
The lourves system shall be comply to AS2047 (window in buildings) tests for window performance. Glass shall be width of 102mm or 152mm, thickness between 5mm to 6.38mm
