85WW Series Window Wall
Window wall system incorporating all the components of the 8500 Series but with a floating header that allows the installation of the system from slab-to-slab, in a balcony position, capable to taking deflections.
Unitized architectural product made from extruded aluminium of 6063-T6/T54 minimum alloy with polyamide thermal break. Assembled by rolling and crimping with a shear test of minimum 400 kg. Usually used at the slab-to-slab balcony area.
This product is designed as per rain screen principle, with a pressure equalization chamber to prevent water infiltration.
- Window wall allowing the installation of double or triple sealed units
- Insulated Glass Unit (IGU) options: 25mm (1”), 32mm (1 ¼”) and 38mm (1 ½”).
- Specification of the glass or a spandrel panel at the professional’s choice
All sealed units are installed from the inside with a mechanical snap-in air barrier and water barrier moulding.
The entire series of LESSARD® leaves and doors can be integrated into this product without sub-assembly.
Each unitized frame is connected to the others without a sealant. Air and water tightness is ensured by dry EPDM or silicone gaskets depending on their exposure.
Primary product designation :
SP (Special Productl)
Air infiltration/exfiltration :
A3: Maximum 1,5 l/s-m2 @ 300 Pa
In accordance with AAMA/WDMA/CSA 101/i.S.2/A-440-11, A-440S1-17, ASTM-E283
Water resistance test :
No water infiltration at 730 Pa
In accordance with AAMA/WDMA/CSA 101/i.S.2/A-440-11 by 9.3.3, ASTM-E547, ASTM-E331
Uniform load deflexion :
Deflexion limited to L/175 at the pressure determined by the current code
In accordance with AAMA/WDMA/CSA 101/i.S.2/A-440-11 (9.3.4), ASTM-E330-02
U-value in accordance with NFRC 100.