Hello Sir, I am constructing house for my own use and have given the work to a labour contractor. The basic , structural & front elevation was designed by a free lance architect. We have just finished the Ground floor roof and left it to curing for 12 days and removed the centring on 13 day. I noticed the water is leaking in the all the sunken portions. The leakage of water is not agressive, but it drops feebly.
I am little bit concerned about this and I request your suggestion to arrest this leakage and to avoid such leakages in future (1st floor & 2nd floor Roof).
I would greatly appreciate your expert comments on this.
At the time of laying cement concrete in the roof one should see that
It should be fully vibrated.
After laying the concrete in the sunken floor, you should finish the top surface of the sunken floor concrete with floating coat i.e. give floor finish by using cement shullary.
Make RCC wall on the side of wall in the sunken foor if possible.
Make cement concrete gola in the joints of wall and sunken floor slab and finish it properly.
To finish already laid sunken floor and others, make plater on all side walls, then after drying do bitumen on the horizontal and vertical surface of sunken floor, than apply polythene sheet on surface after that lay the cinder concrete for filling the sunken floor.
See the website gharexpert construction section for more detail about laying of RCC slb in conc section
Thank you sir for your quick response, sorry I couldnt reply as I was out of town last week.
I have few queries in your suggestion. I couldnt follow the terms like "Cement Shullary", "Concrete Gola" "Cinder Concrete"
Also I came to know about Nano Spray from a news paper magazine, can you tell us anything about it?
Thanks again for your suggestion !!!
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