Structural audit and evaluation are required when the life of concrete and steel structures exceeds a certain time limit or when structures are exposed to physical damage that causes distress. It is also needed when prolonged exposure to deleterious and corrosive environment causes material deterioration resulting in a deficiency of the structure s ability to withstand existing loading. The need for structural evaluation also arises when the improved performance of the building structure is required to meet the desired functional change in the building structure. Building Standards Limited has the expertise and technical strength to meet the client requirement for improved structural performance in an economical and efficient manner.