Hi sifu,

My house roof slab is leaking and have approached contractor to inspect and give quotation, 2 contractors provide 2 different options,1 suggest to touch membrane water proofing, and 1 suggest with chemical coating.

Both pricing are about the same, which one you think will be better to take?

I've fix the WC issue but I am not sure how to know if it was fixed, when i touch the corner of the store room wall, it smells kinda musty, by the way that bathroom was rarely use.

Hi, I wanna seek advice on what to do with the leaking probs in my house... really headache, dunno what to do. Dun understand technical stuffs either.

I have 2 spots leaking at home that needs rectifications. This was due to terrible job by developer. I have given up lodging complaints as the problem persists despite XX times they try fixing it, couldnt solve the prob.

First spot: leaking at the car porch... the reason I suspect is due to cracks on the roof... see pics below...






2nd spot: water marks on plaster ceiling downstairs... leaking from bathroom upstairs. There are some pipes hidden in the plaster ceiling, unable to open up and see. So, not sure if it’s waterproofing issues or piping issues...


Should I engage plumber or waterproofing specialist? What are some solutions I can look into? Any advice would be appreciated... thank you very much in advance.

Haha..... not every project oso of this quality ba...

Got also. The Pye one is pink color if I remembered it right. It is liquid form and fill the crack before hardened but remain flexible like silicone, but in this case where to pour?

The contractor did not do good job. The water proofing substance is mixed with cement. Nowadays there are ready made mixture. I think the main problem with your is at the corner where the floor and bathroom wall met. Usually the contractor did not do water proofing on the wall side. It need water proffing like at least 6" from floor. Normally this is the place where leak took place.

Well of course you can try any product that you think will give you longer term solution.
we are also still learning and just suggesting some alternatives to think about.

Personally i have used these elastometric product on cracks and with 2 coats (applied criss cross on the cracks)  + 2 coats of paint (my choice nippon weatherbond) can easily lasts 5-8 years unless the wall has other structural problems.

That one I apply to outdoor cracks only before painting.
indoor walls as no water factor if there is cracks can just use putty to fill and repaint.

already paint 2 layers using water proof painting on top the car porch slab. unfortunately, beneath the car porch slab still leakings....2/3 days after raining time. possible water may come from elsewhere??

after new year, i will paint the third layer and hope for miracles. in btw, the waterproof paint brand i used is sikacoat. any comment?

Haha... good one.
But just a note, not necessary more layer of waterproof will work better.
In some scenario, when the layer is too thick. It may bubble and when it pop, waterproof layer will leak.... 

Thanks. I cannot avoid the contractor because they are developer’s contractor and the house is under DLP. But then of course I don’t trust developer’s contractor because I know their solution is to find cheapest way to hide the problem until DLP ends

Hi, would like to seek opinion / experience from lowyat members.

Recently I noticed that my water meter reading has been running though there is no water usage at home and I have off the tap to tank.

Likely it's due to underground pipe leakage. Is re-piping the only solution?

Thanks

I have paint peeling and a crumbling on an nterior wall, the other side of the wall is the exterior wall. I'm assuming it is water seeping from rain.
And another problem,  the wall behind the ensuite toilet is also having the same paint peeling problem.
We have done the treatment (can't say what it was) once but it is now back.

Photos are condition of the unit below after 3 months. The specialist send by management say need hack wall to check isit piping issue or not but my specialist said confirm not piping issue but is my tiles waterproofing failing.

He suggest doing water grouting rather than spending tons of money to hack tiles to redo waterproofing for a newly owned house.

He giving one year guarantee on the water grouting.

Is water grouting gonna solve this issue?