The right slope is the Best form of water-proofing, as sloped roof does not allow the water to stay, and hence seepage of water does not occur. The story in real world is not that simple. Flat or sloping roofs has to bear the rigorous of nature more than any other part of the building as it is exposed to :
1. Sunlight: Head on/Slant rays both can lead to uneven expansion and contraction and also reduce the life expectancy of the slab or roof material.
2. Rainfall: Rain meets the roof first and on a day of heavy downpour test the water repellence, as well as out-flow capacity of the roof based on the rainfall/hr to the proper provisioning of gutters, drain outlets to effectively flow the water without having to collect on the roof surface there by leading to leakage issues due to absorption.
3. Dew drops: Dew drops are a poet’s delight, but when the same dew drops enter the minor pores of the terrace slab and crystallize inside the thickness of the slab and expand, they can increase the size of the cracks and lead to greater leakage in the monsoon season.
While nature is working 24/7, 365 days of the year, the roof designed to withstand the rigorous of nature and give us protection as well as sound sleep, buckles due to shortsightedness in the design, specification or effective execution of the construction of structure. Roof being no exception, worse of all a structure having low design intent, poor specification and faulty execution is a night mare which can seldom be corrected and even if corrected has a huge cost associated to it.
Roof top services , like water tanks, cooling towers, solar heaters, wind mills, swimming pools, party lawns, further add to the complexity of the roof, making it mandatory to provide sound construction and state of the art water-proofing so that the building can withstand and serve the different requirement of the building as roofs, sloping or flat can increase or greatly reduce the strength and or life of the building.
While we construct bottom up, Nature works from top- down, head to toe. Construct better, Waterproof even Better. For terrace waterproofing solutions connect with the leading waterproofing contractors in Thane and Mumbai.
