Proper Ventilation is necessary in all buildings, which are extremely susceptible to condensation and heat transfer, Generally, hot or state air will not exhaust through an opening into which wind can blow. Therefore, regular static ventilators, which allow outside wind to enter in the shed because of poor design or location on the roof, cannot be expected to exhaust because they back draft. An efficient means of extracting warm and stale air is through roof mounted turbo ventilators, which create positive draft, removes hot gases, obnoxious funes, bad odour, enchances ventilation. Adequate low level provision for the entry of fresh air at ambient temperture should be provided.