anybody done waterproffing for your roof / tanki area before?? My hse starting to see cracks on the simen slaps and end up the wall got water stains / some kind of bubble on the paint...

i was browsing thru website, there is many options... i saw in fb also that got one company use hydro mambrane torch technology can tahan lazak up to 10 yrs compare to cheaper option of using coating base... true or not i not sure anyone can advise?

This post has been edited by achong09: Mar 19 2021, 09:05 PM

your tanki there got use concrete floor err?

tot what so canggih name, its bitumen sheet
not sure which is cheaper, but my contractor use this

they did 2 layer with 1 day drying in between, then cover with 1 layer cement after drying for 2 days.

step 1: check if tangki got bocor

step 2: check if nearby pipes got bocor

rather than waterproofing that area, 1st thing is you gotta fix the leak

😨😨😨

Some says flat roof not suitable for our climate.

i did membrane torch for my house ....the good contractors will tell u it is overkill n not required for house and u decide haha ....

i decided screw it ..just put it so i dont have to worry

expensive thing can buy almost 2 iphones

make good the slab surface and apply few coats of surface type waterproof coating will do..

Don't DIY. I used the Dunlop bitument thing to fix a small leak. But that damn thing never dries. On a hot day it'll melt and slowly flow down.

Find the leak, if it's the tangki or the pipe first

Roof top ah ... constant sun - bitumen waterproofing membrane.

slanted roof kan ada

Flat concrete slab in our weather is a really bodo design. The only way to get rid of leaks permanently is to put another zinc roof over the concrete slab.

If flat roof use sika 107

only used pentes t200.
2 years+ now, still no leak

i used this Pentens fleseal t-200 for my concrete roof leaking, so far no issue already.

Why your house so many problem?

Must be talam made house.

non shrink, ponding test, then cementitious waterproof (cheaper) or membrane waterproof.

membrane waterproof has 2 kinds, one you just apply and leave to dry.

the other you'll have to finish with a blowtorch.

the blowtorch one is better but you'll probably not like the price.

cementitious waterproofing not more than rm200.

you can even buy the sealing tape and waterproofing powder and do it yourself.

but remember you'll have to do the non shrink grouting first.

okay, i typed too much.

if you're up for the challenge..

I recently did for my house.

Using Aliphatic Polyurea, around RM7000...