Hey folks I need a bit of help again. Check pic out on this balcony the flooring is just not good. Grout is cracked letting water, in etc. Lucky just garage under. Now issue is how can I seal this floor making it water tight without removing tiles and redoing entire floor. This is not a option customers will be moving soon. So I was thinking of fixing up grout. Then if there is like a top coat of something to make it all waterproof. Like a clear floor paint for this material..... but I have no idea what. Please if you can HELP
That's it on the left.


That's it on the left.
