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Supply and installation of external wall facing based on 4mm (total thickness) STACBOND ^® A2 aluminium composite panels (Fire rating A2-s1-d0). The panels are composed of a double layer of 0.5 mm sheet aluminium (exterior and interior face) in accordance with EN 485-4:1993 with an intermediate, high mineral content core (total weight approx. 8.02 kg/m2). Exterior face of 5005 aluminium alloy in accordance with UNE-EN 485-2; lacquered on exterior face (22/40 thickness), colour to be defined by project management and finished with PVdF Kynar 500 70/30 (70% polyvinylidene fluoride, 30% acrylic resin) with 100 µ protective plastic film. Interior face of aluminium lacquered. The pre-treatments used for both aluminium faces are chromium free.
The building envelope is completed with trim for lintels, sills, jambs, thresholds and specific elements via the manufacture of special parts composed of the same panels and with joints to allow free expansion. Sill trims have a minimum fall of 17% (10º) in accordance with Code.
SUBSTRUCTURE: (The harshness of the environment must be taken into account in accordance with Code SE-AE Wind Effect to calculate the Velocity Pressure Exposure Coefficient). Installed with vertical and/or horizontal modulation, leaving 5-20 mm slots between sheets via an STB-T-RIVETED system composed of an auxiliary support structure of extruded 6063 T5/T6 aluminium alloy T- profiles(Ref. 05.19.043 ST-3), in vertical and/or horizontal, fastened together using junction pieces (Ref. 05.19.021) and levelled via "L" shaped anchors (Ref.05.19.042 ST-2-68; 05.19.045 ST2-92).

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