MULTIPLE-WALLED INSULATING UNITS OF GLASS FOR PREFABRICATING THE ENVELOPE OF A BUILDING.PREFABRICATED WALL PANELS, SEALED AROUND THE EDGES BY A METAL JOINT WHICH MAKES A COMPLETELY AIRTIGHT UNIT . THE METHOD OF INSTALLATION IS TO BOLT THE PANELS ONTO A CONCRETE FRAME (NOT SUPPLIED). THE COMPLETED PANELS COMPRISE DOUBLE AND TRIPLE GLAZED GLASS, INSULATED PANELS AND FIXINGS. GLASS IS TINTED AND REFLECTIVE.

CLASSIFICATION IS DETERMINED BY THE PROVISIONS OF G.I.R'S 1 AND 6, AS WELL AS THE TEXTS OF 7008 AND 700800.HSEN PAGE 1163 REFERS.