try to apply a layer of waterproofing material to my ground floor concrete before laying marble. but different hardware shops different recommendations. the cheapest is Shell Bitumen, followed by Sika 107, the most expensive is PYE multipurpose sealer.

total area arround 1000sf, Shell only $300 while PYE cost more than $1200
which one is better and value for money? please comment.

do you know whats the difference between pye and the shell one ?

bitumen is tar

your pye refer to which one

http://www.pyeproducts.com/productcat.php?...ory=pwc&lang=en

pye one usually is silicon or acrylic , thus its more expensive

should be the 1st one :Flexi Seal. any comment?

The material is not meant for secondary layer. Its the final layer. If you put it than put tiles or marbles your flooring will not stick. Make me wonder, why do you put proofing for ground floor?

This post has been edited by weikee: May 30 2012, 03:39 PM

you lay new concreate floor or removing your exiting tile and retile back???

my house at a lower ground, during raining season, water will even come out from the ground. so plan to put a layer of water proofing on top of the concrete, than followed by a layer of cement screed, than only marble.

initially i want to lay timber, and this is the suggestion by the timber supplier.

put proofing to prevent vapour. any advice weikee?

I an not the expert here, can't give you best solution. Hour about thicker concrete floor with using water proof cement? Or consult soil expert any solution on your soil condition

since u want to finish it with marble, u need to apply water proofing even your floor don't have water come out from ground.

sika 107 suit your case as u want to re-do cement screed. before install the marble, apply another layer of sealer to under side of marble to prevent any balck/dark stain come out later as the sand always got lots of dirt no matter is wash sand or mining sand.

your timber supplier is correct, water proofing is a must if want to install marble/ timber on "ground" floor

thanks, will use sika 107 and also look for water proof cement.

orientaliew, you mean the water come out from your existing concrete floor now?

i would suggest you try to find out first the source of water to your floor.is is coming from the outside pavement then goes inside. If from the pavement, then settle this issue first. Try investigate your drainage system and your outside drainage system (unless your house is lower ground from the road, then there is a bit complicated) From the way u mention the waterproofing..it does not 100% solved the issue unless you can find the source of water from the outside. Must remember the character of water, you block the water here, the water must follow to some where else. Then the water pool will shift to other place.

Just my opinion.

About The PYE is a good brand.

This post has been edited by tomjason: May 31 2012, 04:37 PM

yes, one end of the house is lower than the road. luckily the water only come out at outside, as you can see from the photo, the crack, the grass and the water mark.


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From your pic it seems like your house is a good 2-3 feet lower than surrounding ground level.

That's a major problem. Waters rises together it does not just avoid a portion your house. Even if you water proof your house 100%, when the water table rises during heavy rain if will just come rushing in from outside or even the longkang, have you thought about that?

This post has been edited by northface: May 31 2012, 09:59 PM

Sell the house. Sorry... Sell and buy another.

So long if it is not flooding Sika top is a good choice. I used it for my pond waterproofing. You got to waterproof it up to the wall some 1 foot that would be good as the joint between floor and walls are sealed as one. It is advised to have 2 coats, dont be, spend a little go for 3 coats cause sometimes the workers missed some and the final 3rd coat would be able to cover the weaknesses. 2 coats is when it is done by profesional doing it correctly according to the book where the 2nd coat tries to cover any weakness of 1st coat. But dont know who is doing for you so my advise is 3 coats.

well, too late to sell. i already started my renovation.

although i side of my house is arround 4 feet below the road, during the heaviest down pour last year, the water did not enter the compound.
however, i already plan to build sort of wall fence, and maybe redo the drainage too, to prepare for the worse.

thanks for the advice. will certainly put 2 layer of waterproofing.

Yes, look into the drainage system seriously. That is the way to solve your problem, u can't just rely on waterproofing by itself.

Oriental Liew,

1. The pic show your house is lower than the surrounding, means water will find its way to your lower house.
2. Your house is protected by drain and where the drain goes? to somewhere lower.
3. I believe if you look beyond your house there will be even lower ground where the water will flow to.
4. And if you look further there might be some houses lower than yours.
5. Are you living in hilly areas some high some low ground in PJ?

Ok, if the above are true than the most important thing for you to beware and to do is make sure the drains from your house surroundings to out of your house is never blocked. If need be make sure the drains are in good condition from your house down to some bigger drains at the lower ground, Then only then you know you have no problem to worry.

thanks stevie8.