The SL2® Window System

Suitable for narrow frame applications

Featuring modern architectural lines, the SL2 Altair Louvre Window System has been developed to suit narrow frame applications and installation into concrete block construction when screening is not required. The SL2 Window System can effectively bring natural light and ventilation into the building to reduce the need for power-hungry artificial cooling systems. A build out is required to fit a screen to the outside of the SL2 Window Frame. The Easyscreen and Innoscreen Windows may be preferable if a screen is to be fitted.

SL2 Single Louvre Bay

A single louvre window bay contained within a single frame.

SL2® Window System 3D Models

INTERACTIVE ON-LINE VIEWING

SL2 Window System 3D Models

 

Online viewing of 3D models is a relatively new technology. Please note the models shown below are rendered animations only. For more technical detail please view the CAD and BIM model section below. Viewing 3D models requires a fast internet connection and reasonably high speed computer processor. Viewing may not be possible on some older computers. We recommend Google Chrome for the best viewing results.

NOTE: Whenever you see this symbol logo-mark-25x25 click on an illustration to view a 3D interactive version. Rotate the model by using your left mouse button or pan the model by using your right mouse button. Use your mouse wheel to zoom. Please note this is a rendered model only. For more technical detail please see the CAD and BIM Model section below.

1 Bay Open

1 Bay Open

Sl2 Window System Dimensions

 

1 Bay Open

SL2 Fixed Lite

SL2 Mullions

SL2 Accessories

SL2 Standard Heights

 

While Altair Louvre Windows can be manufactured in any size specified, the wind and water rating for the building project will affect the maximum allowable window height and bay width. Please refer to the Altair Product Performance Warranty for technical information.

For standard heights in the Breezway SL2 Frame please see the size chart to the right. Off Standard heights are available but this will add cost and result in a fixed louvre blade to act as a filler piece.

Please note:

  • Standard Heights are measured from the lowest visible metal to the uppermost visible metal of the frame and excludes fins.
  • Off Standard Heights that are more than 5mm greater than or less than a Standard Height will have a top fixed blade to achieve the specified height. Off Standard heights that are within 5mm of a Standard Height will not have a fixed top blade.
  • Some off-standard heights are unavailable when using the 102mm Altair Louvre Galleries with the Stronghold System. For the SL2 System these include: Standard Height + 19mm to Standard Height + 30mm.
  • Refer to the product performance warranty on possible height restrictions for different blade types.
  • Standard sizes will save money and improve lead times.

SL2 Widths

 

There are no standard Altair Louvre widths. The desired window width can be achieved through multiple louvre bays (maximum bay width is 4000mm). The bay width may be affected by Building code rules. Please discuss with your Breezway Dealer and builder.

No. of BladesStandard HeightStandard Height
152mm Blades102mm Blades
2358-
3498348
4638438
5778528
6918618
71058708
81198798
91338888
101478978
1116181068
1217581158
1318981248
1420381338
14 Ext2100-
1521781428
1623181518
16 Ext2400-
1724581608
1825981698
1927381788
2028781878
2130181968
22-2058
22 Ext-2100
23-2148
24-2238
25-2328
26-2418
27-2508
28-2598
29-2688
30-2778
31-2868
32-2958
33-3048

SL2 Standard Height Chartsmall-pdf4

Ext = Extension blades

CAD and BIM Models
NOTE: You can use your mouse to hover over the preview screen inside the table below to identify each CAD drawing prior to downloading the file. For animated renders, please see the 3D Model section above.

Altair® Louvre CAD Drawings

Breezway offers a collection of CAD drawings for the complete Altair Louvre product range.

You can also download all CAD files in this section here SL2 CAD Drawings.

NameFormatPreview

(Mouse over)

Altair 102 in SL2 52mm Surround Frame - Includes Model, Elevation View, Front View, Plan View and Specification.DWG & PDF
Altair 102 in SL2 52mm Surround Frame with Fixed Lite - Includes Model, Elevation View, Front View, Plan View and Specification.DWG & PDF
Altair 152 in SL2 52mm Surround Frame - Includes Model, Elevation View, Front View, Plan View and Specification.DWG & PDF
Altair 152 in SL2 52mm Surround Frame with Fixed Lite - Includes Model, Elevation View, Front View, Plan View and Specification.DWG & PDF

Altair® Louvre REVIT Models

REVIT models of selected SL2 Window Systems are now available through the Design Content website or can be downloaded below. REVIT models are generated and maintained by Design Content.

Please note: While sizing logic has been built into the models, Breezway’s Product Performance Warranty should be consulted to determine maximum blade lengths and maximum window heights for each project’s wind and water ratings.

While the REVIT models do not show fixed blades when off-standard heights are specified, windows at off-standard heights will be supplied with fixed blades.

You can also download all CAD files in this section here SL2 REVIT Drawings.

NameFormat
SL2 Window System.RFA & TXT
SL2 with the Stronghold System.RFA & TXT

Altair® Louvre SketchUp Drawings

Breezway now offers SketchUp models of Altair SL2 Window Systems in a variety of sizes.

Please download the zip files below to add to your library. There are a total of 55 models of each window system per file.

NameFormat
Altair SL2 Window System SketchUp Files.SKP
Blade Formulas
For allowable length of blades refer to AS1288 and Breezway Louvre Window’s Product Performance Warranty.

Breezway SL2 Window System
Actual Height / Standard HeightDim. A
Dim. B Overall HeightDim. A + 40mm
Frame widthDim. C
SL2 Frame: Glass, aluminium & rebated timber blade lengthDim. C - 102mm
SL2 Frame: Glass & aluminium Stronghold blade lengthDim. C - 98mm
SL2 Frame: Straight cut timber blade lengthDim. C - 122mm

Altair Louvre blade length tolerance

Extension Blade Formulas SL2 Frame
Glass & Aluminium Bladesx = Channel extension +20mm
Timber Bladesx = Channel extension +24mm
Size Range SL2

Blade Thickness

Note: Flatness tolerance of +/- 0.35mm per metre.

View/download SL2 Blade Formulassmall-pdf4

Installation Instructions

Technical Papers

 

An Industry Guide to the correct Installation of Windows & Doors

Installation of Windows & Doorssmall-pdf4

An Industry Guide to the correct Fixing of Windows & Doors

Fixing of Windows & Doorssmall-pdf4

Installation Instructional Videos

 

The AWA has prepared an industry guide on the correct installation of Windows & Doors in different types of construction. You can view the complete range of typical methods used via the AWA YouTube channel or please view the videos below.

Specification

Altair Louvre Window Recommended Specifications

A tight specification will help to make sure that what you specify ends up in your building thereby achieving your design objectives.

The louvre windows shall be Breezway Altair Louvre Windows

Unique features:

  • Patented drainage channels for superior water performance.
  • Patented ‘Living Hinge’ design that pulls the clips tightly against the channel when closed for superior water performance and air infiltration.
  • Low profile keylock with lock barrel housed inside the louvre channel.
  • Passed testing to 40,000 open/close cycles for long operational life.
  • Passed testing to 15,000 lock/unlock cycles for long operational life.
  • Altair Louvres have passed AS2047 testing at 3,000mm high.

The louvre windows shall be Breezway Altair Powerlouvre Windows

Unique features:

  • Patented drainage channels for superior water performance.
  • Patented ‘Living Hinge’ design that pulls the clips tightly against the channel when closed for superior water performance and air infiltration.
  • Motors are concealed within the head of the window frame.
  • Motors are easily accessible for maintenance.
  • Each low voltage motor only requires 0.25 amps to reduce transformer and wiring requirements.
  • Motors can be powered by appropriately specified transformers from any supplier.
  • Available as either a fully assembled window system or as a component system for installation into window fabricator’s framing systems.

The louvre windows shall be Breezway Altair Louvre Windows with the Stronghold System

Unique features:

  • Patented drainage channels for superior water performance.
  • Patented ‘Living Hinge’ design that pulls the clips tightly against the channel when closed for superior water performance and air infiltration.
  • Low profile keylock with lock barrel housed inside the louvre channel.
  • Altair Louvres have passed testing to 40,000 open/close cycles for long operational life.
  • Passed testing to 15,000 lock/unlock cycles for long operational life.
  • Altair Louvres have passed AS2047 testing at 3,000mm high.
  • Pinned design that mechanically retains blades within the clips to prevent blade dislodgement under human impact.

The louvre windows shall be Breezway Altair Powerlouvre Windows with the Stronghold System

Unique features:

  • Patented drainage channels for superior water performance.
  • Patented ‘Living Hinge’ design that pulls the clips tightly against the channel when closed for superior water performance and air infiltration.
  • Motors are concealed within the head of the window frame.
  • Motors are easily accessible for maintenance.
  • Each low voltage motor only requires 0.25 amps to reduce transformer and wiring requirements.
  • Motors can be powered by appropriately specified transformers from any supplier.
  • Pinned design that mechanically retains blades within the clips to prevent blade dislodgement under human impact.

View/download Altair Louvre Window Specificationssmall-pdf4