An average of 10-13 cm thick LC terracing with some waterproofing compound is provided over the RCC slab to make the roof leak proof. The lime concrete is thoroughly beaten by several workers with wooden beaters for several days to make the roof more compact and impermeable. At the junction with the wall,

the lime roof is taken to a depth of 10-15 cm inside the wall and the corner is given a smooth and rounded shape so that water does not collect. The lime roof is provided with a slope (1 in 60 to 1 in 100) for easy drainage of rain water from the roof to the gutters provided for this purpose.
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