Prefabricated building is a non-conventional style of construction wherein, majority of the building components are manufactured in a factory that are then transported and assembled on site to form the entire building. Prefab construction is cost effective in terms of time, wages, and raw materials. Prefabricated units include PUF insulated wall panels, solid wall panels, dry wall panels, PPGI roof panels, insulated roof panels, staircases, civil plinth, flooring, truss frames, purlins, columns, and other such structures.