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QUOTE(dvinez @ Apr 19 2011, 05:40 PM)
Hi guys, i am come across a thread there that mention resin injection can fix leaking.
Anyone mind to further explain it or can provide opinion whether it will fix my current problem ?
I did toilet/back extension with flat concrete roof by a noob person, it have leaking problem sometime when raining really heavily. however sometime it does not.
I consulted another contractor and he suggest I do awning to cover the concrete roof, somehow i come across this thread and I wonder whether this method will work.
He also told me the problem occur because the contractor do the extension in wrong way.
If there is no solution, it will cost a lot of money and time if Im going to redo/hack it.
He said the contractor do Picture A method, correct method should be Picture B. Last picture show leaking.
Thanks.

Anyone mind to further explain it or can provide opinion whether it will fix my current problem ?
I did toilet/back extension with flat concrete roof by a noob person, it have leaking problem sometime when raining really heavily. however sometime it does not.
I consulted another contractor and he suggest I do awning to cover the concrete roof, somehow i come across this thread and I wonder whether this method will work.
He also told me the problem occur because the contractor do the extension in wrong way.
If there is no solution, it will cost a lot of money and time if Im going to redo/hack it.
He said the contractor do Picture A method, correct method should be Picture B. Last picture show leaking.
Thanks.

resin injection/ pressure grouting not permanent solution,
try this :
cheap solution
Apr 19 2011, 08:08 PM

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