Okay, you want meaningful pictures - here's one: very bloody meaningful and extremely expensive to boot. Or rather, to complete and replace with new tiles and different type of wall - basically, no new wall at all, but an edge tile (fiola) that prevents drainwater spilling back down onto the wall below the edge as gravity beckons it to the garden.
The moral question here is immense: should a builder's guarantee be limited to ten years? The work is being carried out because of water ingress to the apartment leading to a stained fitted carpet, this because of insufficient slope for good drainage, poor insulation of the building's main water tank which lives beneath this terrace, but the book can be bought or read in the public libraries of every country around the Mediterranean, so I won't bother writing it again for you here and now.
Hot damn! The price of dreams!
Rob C