Roofs are the most exposed areas of a structure, especially in extreme weather conditions. The absence or inadequate waterproofing in these areas can lead to severe problems like leakages in cuttings and dampness in the parapet. The continuous exposure to climatic changes can cause wear and tear of the roof which in turn causes leakage and damage. Thus, it is important to avoid cracks in slab and waterproof it to prevent these problems. Furthermore, if there is a leaking tank on the top, it will be like adding salt to the wound.
Crack: RCC shrinks over a period of time causing crack in the roof. This paves a way for water infiltration into the structure.
Slope of the Roof: Leakage persists when there is not a proper slope for water drainage. A flat RCC slab laid to slope of 1 in 40 is good enough to drain the entire rainwater for regions with normal rainfall and 1 in 20 for regions with heavy rainfall.
Improper Maintenance: Improper maintenance can lead to water infiltration. Since water can’t run off, it seeps into the surface.