Flat roofs/box houses have a tendency of flooding of gutters during heavy rainny seasons, thus leading to endless leakages and decay of ceilings. This is mainly attributed to by lack of inadquate cleaning of iron sheets after finishings, shallow gutters, over nailing of the valleys and putting a small outlet on the gutter compared to the large moving volume of water, however this can be solved when extra attension is made during roofing For more call256XXXXXXXXX