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The roof serves as a protector, as privacy and security for residents of the building below.
There are various forms of roof designs with different materials. Variations in roof shape design in residential houses are generally flat roofs, gable roofs, roof shields, roasted roofs, domed roofs, cone roofs, hyperbolic roofs, arc roofs, umbrella roofs and membrane roofs.
The choice of roof design is influenced by the material used, the availability of material in the local area and the personnel / experts who will make it. Roof truss material commonly used such as concrete roof truss, steel roof truss, wooden roof truss, iron roof truss to light steel roof truss.