1. Water stagnating area in a structure attack dampness, leakage etc and subjected to alternate wetting and drying cycle. Such area are more prone to early corrosion embedded steel reinforcement.
2. Concealed water supply and drainage line are the general source attracting damage to the structure. Source of leakage seepage due to concealed service has to be identify establish and recorded during the inspection.
3. Particularly the terrace floor of the building, dampness due to improper terrace treatment, it slop or inefficiency of rainwater disposal system may not be noticeable to the eye but damage continues till spilling of cover concrete takes place. Hence efficiency of rainwater disposal system should be carefully examine during such inspection and a note to this effect be recorded.
4. Dis coloration observation made during inspection should be mark on drawing and also taken as photographic record

Causes of water seepage

1. Leakage in the drainage pipe of the upper adjustment or your own flat.
2. Leakage in the water supply pipe of the upper adjustment or your own flat.
3. Deterioration water proofing of floor slab or bath tub seals.
4. Seepage of waste water and rain water through roof / external wall.