ABSTRACT
Aluminium is widely used for a variety of industrial and commercial ducting applications. Heating and ventilating systems make good use of aluminium sheet for its light weight and durability and for its ease of handling, workability and installation. Aluminium partitioning and screening, built up on systems of extruded aluminium frames, is ideal for subdividing room space. Either permanent fix or demountable structures are available. In modern office environments suites of specially designed extrusions are finding favour as a means of incorporating trunking routes for electrical and communications cables into a planned system. Expanded mesh made from sheet, perforated and then stretched, has been popular as a decorative grille material. Slim aluminium frames combine lightness and elegance with strength and functionality. Hollow extrusions or clip-together solid sections can be used which incorporate hidden channels for the passage of electrical wiring and communications cabling.
