Best way to waterproof ceiling?

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Deal Subedar
prodime17

I want to know whats the best, effective and long lasting way to waterproof ceiling. Here to know your Views on this

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Benevolent Benevolent
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Tlles ... use cheap tiles with proper cement/waterproofing mix

Deal Subedar Deal Subedar
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does it last long?
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Deal Captain Deal Captain
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Several paint companies provide coat based water proofing. Search in internet or ask in hardware store.

Deal Subedar Deal Subedar
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Yup, searched in internet, but im here to know a trusted solution that lasts long.
Deal Cadet Deal Cadet
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It all depends on the condition of roof + city you live.

There are many solutions but all factors are taken in consideration to get best results and durability. Feel free for advice in personal chat

Deal Newbie Deal Newbie
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One can only check and tell if it is just ceiling or side walls too.

Rather than the contractors or masons who themselves take repair jobs too, a structural engineer and civil auditor can be more neutral, unbiased.

If ceiling in one block is actually below the flooring of the block above, then even more necessary to identify the correct source/s of the issue.

For ceiling, in severe cases, re-plastering is done (with relevant chemicals being infused in the mortar).

Even more problematic situations where the column or slab rebar (reinforcing bar/ iron rods) is exposed or getting rusty then first that needs to be taken care of by changing the mortar accordingly.

Apart from local/regional chemical brands, sone of which are very good, Asian Paints' 'Damp proof', 'Damp block' are often used. While Berger (and others too) give complete solution from initial survey stage itself https://bergerpaints.com/scientific-waterproofing-solutions.
None of the brands force to use the services too. warranty registration via e-mail (after self application) can be done. Not sure how much can a brand verify proper application of the product in cases where customer gets it done by others.


Okay I just went on-line to check for Asian Paints Ultra Bock, realised that it has a bit different application https://m.youtube.com/results?sp=mAEA&search_query=Asian+paints+ultra+block.

But an important thing that came off it was that many use something called 'neeru' plaster or a thin sandwich layer https://youtube.com/watch?v=ZiXZKDDIohg for such polymer/acrylic or waterproofing coatings to properly bond with the plaster above.
This 'neeru plaster' might be a colloquial local term, but conceptually one can understand.

Problem comes when enough time is not given for wall or ceiling to dry out prior to application
                  and
rushing through the process by not adhering to proper 'curing' times will be a leading cause for things to fail.

'Curing' not just of these advanced compounds for coatings premix.. but also of plastering or other things (like the surface where tiling is done).

Speaking of tiles, if sunken areas (bathrooms, toilets) are there above the ceiling and leakages from its flooring is there, then removing those tiles and pouring in the relevant chemical infused mixture is an altogether different but very important process too.
Deal Subedar Deal Subedar
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thank you
Deal Cadet Deal Cadet
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if the seepage is from rain from roof . use zydex zycosil

https://www.amazon.in/REALTECH-Zycosil-Penetrat...

i have used it in my own house for waterproofing. excellent product.

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Deal Newbie Deal Newbie
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On an average, how much coverage was achieved?
(How many square feet per kilogram or litre?)

Assuming that the answer would be for a double coat, after giving the prescribed curing/wait time prior to the application of the second coat.
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Deal Cadet Deal Cadet
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Also the application need not be by brush or by coats. I just sprayed the liquid over the roof till saturation. And the efficacy can be seen the instant it dries up.

Deal Subedar Deal Subedar
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oh, what product is that
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