REPAIRS TO ROOFS CHAJJAS SUNKEN PORTIONS AND ALLIED BUILDING COMPONENTS INCLUDING TREATMENT OF LEAKAGE SEEPAGE DAMPNESS AND SURFACE DETERIORATION AT DOMESTIC AREA AT AFS TAMBARAM REPAIRS TO ROOFS CHAJJAS SUNKEN PORTIONS AND ALLIED BUILDING COMPONENTS INCLUDING TREATMENT OF LEAKAGE SEEPAGE DAMPNESS AND SURFACE DETERIORATION AT DOMESTIC AREA AT AFS TAMBARAM