. Sathyam steel roof structures is one of the well-known manufacturers of profiled colour coated roofing and cladding sheets and steel ribs with accessories. The company also offers pre-engineered buildings. Basic building parameters: building length - whenever possible maintain equal bay lengths throughout the building. When this is not possible make all interior bays equal and make the end bays equal but shorter than the interior bays. Building width: whenever possible make building width a multiple of 3 m. To provide accurate need the pre-engineered buildings are custom designed. The basic parameters that define a pre-engineered building are: building width: no matter what primary framing system is used, the building width is defined as the distance from outside of eave strut of one sidewall to outside of eave strut of the opposite sidewall. Building length: the distance between the outside flanges of endwall columns in opposite endwalls is considered the building length. End bay length: the distance from outside of the outer flange of the endwall columns to centre line of the first interior frame column.
