The dual wall consists of two concrete surfaces separated by an empty space that is insulated. The insulation is all through the wall

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section, and its height can be varied as desired. Steel trusses are used to hold the concrete layers. Smooth surfaces can be produced on both sides of the walls by using a modern process. The walls are painted on the external surface to obtain the chosen color and texture. The external surface can have multiple forms and patterns of bricks, stones, and wood. The internal surfaces may be painted by using conventional paint procedures. Dual wall precast concrete panels can be used on all types of buildings including townhouses, apartments, and single family houses. These panels can be designed to obtain structural safety and strength, including aesthetic and acoustic qualities.