Daang

My bathroom floors don't seem to have a waterproof layer before the tiles were laid on. I think the house was built in the 80s and don't know if that was the normal way of doing things. So when the tile grout is worn away which is happening too frequently under the shower area, water will seep through the concrete/cement and the water will drip from the ceiling on the floor below.

Instead of re-applying grout (using water resistant grout from pye). Should I apply some sort of penetrating sealer and some sort of waterproof top coat to seal the grout lines?

Or does grout sealer help to protect the grout so that it doesn't get worn away too quickly?

https://shopee.com.my/UFIXX-NO-LEAK-GROUT-T...0836.7447621234

This post has been edited by derail: Nov 27 2020, 04:39 PM

Check what is above, in my case it was the bathroom and all that is needed is to reapply the grout lines which is very cheap.