The termite enter building and structure undetected from below damaging the foundation and spreading to upper floors through joints wall cavities and the inter space of brick and stone work, electrical parts and also spread through drainage line. This way not only wood but even the RCC columns and beams cannot resist termite attack. Iron when rusts expands and provides channels for termite to enter upper floors. Some species of termite are highly destructive to wood work which eat up and hollow out wooden structure. Some are even capable of penetrating the sheathings of electrical wires thus causing short circuit and fire.