Texlon® ETFE technology combines between two and five layers of ETFE foil to form air pressure stabilised cladding panels or a single layer system. ETFE (ethylene tetrafluoroethylene) foils can be transparent, coloured or printed.
The number of layers used in a panel depends on project specific requirements for structural and thermal performance. In addition to the number of foil layers, surface coatings and treatments and embodied pigments can also be utilised to fine tune g-values and U-values for any system. Different specifications can therefore deliver a wide range and combination of visual transparency, solar control and thermal resistance.
ETFE foils are extruded in rolls typically 1,550mm wide and between 200m and 500m long. The thickness of individual foil layers can vary between 80 µm and 300 µm depending on the mechanical performance required for given loading conditions.
Each layer of a Texlon® ETFE cladding panel is made up of smaller elements cut from the foil rolls to a predetermined design by a computer controlled plotting machine and welded together to form a single sheet.
The required number of layers are then sealed one to another and by welding them around the perimeter to a strip of foil folded over a ‘keder’ rod or rope. This perimeter assembly provides the means of structural connection between the ETFE panel and the perimeter framing.
The Texlon® ETFE system can be used wherever there is need for a high performance, long life, building envelope.