If the roofs are made up of Asbestos Cement Sheet of other Polycarbonate materials than chances of leakages are due to joints getting loosen due to wind. Also sometimes the connecting screws get loosen up making up the holes bigger creating leakages. Another reason is that if the damaged roof tiles are not taken care of, water can seep into a roof and eventually, any water that has accumulated underneath roof tiles will seep into beams, through ceilings, and into a home.