BT90-H1 Thermally Broken Double Glazed Louvre Series
The BT90 is a thermally broken double or triple glazed glass louvre system produced by Schneider louvres in Germany. The system utilises a heavy duty rack and pinion operating mechanism concealed within the thermally broken louvre frames allowing for either automated or manual operation to meet your specific project requirements.
The system can be configured with either double glazing (DGU) or triple glazing (TGU) sourced from local New Zealand suppliers which allows the louvres to be glazed with the same glass used in the rest of the facade. The BT90 louvre system is certified to NZS4211 having been tested to AS/NZS4420.1.
With the correct glass selection the BT90 louvre is capable of meeting the stringent H1 energy provision requirements recently introduced in New Zealand. To talk to our expert team about the installation of this product in your building, contact us today.
EBSA introduced the BT90 louvre system in response to the improved thermal performance required of facades in the National Construction Code (NCC 2019).
The BT90 utilises thermal breaks in both the perimeter louvre framing and the blade holder to achieve the best thermal rating of any louvre system on the Window Energy Rating Scheme (WERS) database.
EBSA introduced thermally broken double glazed louvres to the Australian market in 2012 and the BT90 is the single biggest advance in louvre technology based on many years of local and international experience.
The BT90 has been NATA certified to AS2047 in varying configurations and has established itself as one of the most competent systems on the market.
Model | BT90-IG32 / BT90-IG44 | |
Profiles | Frame | 90mm x 40mm Thermally broken aluminium profile |
Blade Holder | Fully framed thermally broken aluminium profile | |
Dimensions | Frame Width | min. 400mm up to 1740mm |
Frame Height | min. 300mm up to any height | |
Louvre Blade Height | min. 180mm up to 450mm | |
Glazing | Glazing Type | Insulated Glass Unit (IGU) |
Makeup | 32mm IGU (double) 44mm IGU (triple) Insulated sandwich panel | |
Profile Finish | Anodised or Powder Coated | |
Operation | Centre Pivot | |
24V Electric or Manual Operation | ||
Certification | ||
NZS4211 | Air Infiltration Test | Positive 0.02 L/s m² Negative 0.52 L/s m² |
Water Penetration Test | Up to 800 Pa | |
Ultimate Strength Test | Up to 8000 Pa | |
Deflection Test | Up to 3000 Pa | |
EN12101-2 | Smoke Vent | Certified |
Thermal Performance | U-Value | 2.355 W/m2K (subject to glass makeup) |
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