This thing does not work for bathroom.

I think water is the most troublesome issue for a building. Especially for apartment. Electricity or wiring are still ok. But water and piping and water proof is a real problem.

how high should the waterproof be applied?

my tile guy told me they will waterproof the floor and about 2 feet up the wall. and 3 feet around the shower area. is this enough?

It looks like a good product. Can it be used at external area?

Shower are 1800mm height, non shower area 150mm high skirting enough.

Can anybody share a reliable waterproofing contractor around klang valley?

I'm getting quotation from 2 contractors to apply waterproofing on my bathroom. 1 contractor said no point to waterproof the wall area but only the floor & another contractor said otherwise & need to waterproof the wall area up to waist length (~80-90cm). Am confused which is correct.

At shower area, better to do wall too.
Other area do up turn enough already.

water mark outside bathroom, is that an indication that the waterproofing is in adequate?

Water mark doesnt mean is waterproof problem.
May be is piping problem.
If really wan to check. Stop using for 3 day. If water mark gone, open back all water. Water mark coming back within 10 minute. percentage for piping problem is high.

It actually happened at two corners of the bathroom. It also appear at the very bottom just above the top of skirting.

Hi awdarr, mind to share how much the contractor quoted you & using what method. Im facing similar bathroomwater seepage

10 years later, for others' reference.

All contractors I came across says 1 foot. Many years ago, I research and found an Australian (i think it was Govt site) that says 6 ft or all the way to the ceiling. I did mine 6 ft near the faucet and somewhat lower near the door (finished entire bag of waterproof also not enough to cover 1 layer, beginning to feel the $$$ pinch). Behind the scene talk, sub-contractor told me he did 4 ft for his PDRM project.

Why 1 foot? Because everyone wants it cheap. Contractors already trained to do 1 ft. 6 ft means more materials and labor hours and most people not willing to pay. They end up going to a cheaper contractor who manage to convince them 1 ft is sufficient and the honest contractor lose business. I myself has been slammed so many times telling people minimum 6 ft and 1 ft is enough.

+1 Sika. If i dont have memory leak, Sika's HOWTO says 1 layer vertical and 1 layer horizontal. So you count the cost between 1ft x 1 layer and 6-10 ft x 2 layers lah.

Edit :
https://ncc.abcb.gov.au/editions/ncc-2022/a...a-waterproofing

Maybe they will tell you that is Australia. Madani needs only 1ft.

This post has been edited by beLIEve: Dec 30 2023, 06:35 PM