Technological improvement over the years has contributed immensely to the enhancement of quality of life through various new products and services. One such revolution was the Pre-Engineered Buildings (PEB). Through its origin can be traced back to 1960’s its potential has been felt only during the recent years. This was mainly due to the development in technology, which helped in computerizing the design. Pre-Engineered Buildings (PEB) are generally low rise buildings however the maximum eave height can go upto 25 to 30 meters. Pre-Engineered Buildings are ideal for Multi Floor Steel Buildings, Industrial Buildings (Foundry Unit, Machine Shops etc.), Warehouses, Cold Storages, Airport Terminals, Aircraft Hangars, Offices, Houses, showrooms, shop fronts, residential apartments, Low cost housing etc. The application of Pre-Engineered Buildings concept to low rise buildings is very economical and speedy. Buildings can be constructed in less than half the normal time compared to the traditional Brick & Mortar, especially when complemented with the other engineered sub systems. re-Engineered Buildings can be fitted with different structural accessories including mezzanine floors, canopies, fascia, interior partitions etc. and the building is made water proof by use of special mastic beads, filler strips and trims. This is very versatile buildings systems and can be finished internally to serve any functions and accessorized externally to achieve attractive and unique designing styles. It is very advantageous over the conventional buildings and is really helpful in the low rise building design.