Buildings shall be generally customer designed, pre-engineered structures designed to provide support for cranes, pipe work and services, The steam turbine hall shall be steel of framed construction. Supporting insulated metal cladding. The dimensions of the building shall be such as to provide generous space for the safe and proper operation and maintenance of the power plant and its equipment. All building with roots shall have falls sufficient to provide adequate run off for storm water, They shall be provided with gutter and down pipes if necessary. Battery rooms shall be fitted with sufficient ventilation louvers. Permanent access ladders or stairways shall be provided for maintenance and operation of equipment, wherever necessary. Noise, vibration and temperature levels in all building shall be within permitted limits. The constructor shall investigate the seismic activity in the project site at his own cost. The buildings and structures shall be designed accordingly to with the requirement.