The Rain­coat Ad­van­tage

NBM&CW - - PRODUCTS & TECHNOLOGIES -

In heavy mon­soons, would you be caught wear­ing a torn can­vas jacket? Of course not, what a ridicu­lous ques­tion! You would wear a rain­coat. So why not ex­tend the same logic to the build­ing struc­tures you work on?

It is com­mon for con­trac­tors to have clients re­peat­edly crib­bing about leak­age, even af­ter water­proof­ing has been done a year be­fore. It is also com­mon knowl­edge that con­ven­tional meth­ods of water­proof­ing like Brick­bat Coba, Mud Phuska and Lime ter­rac­ing for pro­tect­ing build­ing struc­tures from leak­age barely hold up for one sea­son of rains.

So why are we still us­ing them to wa­ter­proof cru­cial ar­eas like the ter­race? Why use only paints as a method of water­proof­ing for your ex­te­rior walls? These meth­ods are bound to fail given the hot and hu­mid weather and heavy mon­soons in cities like Mum­bai. Ex­po­sure to ex­treme heat and water can take its toll on a struc­ture. It is ob­served that, in gen­eral, water seeps through ex­ter­nal walls within the very first five years of a build­ing’s com­ple­tion. Seep­age is also caused by high wind speeds that all high-rise build­ings are ex­posed to. In fact, even the best sky­scrapers in the plush­est res­i­den­tial com­plexes have

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