In my house, I have a balcony on the second floor that is inside the house.
Not one that extends outside the building.
Now here's the problem. On the balcony, there are green plastic tiles that click together and are full of holes. I don't know what they are called.
But underneath these, there is a plastic mat where the seams have come apart and there are various holes.
On the floor below, there is a damp stain on the ceiling (the ceiling was lowered, so we did not see it until now when we replaced the ceiling).
I don't know if the water can reach there, but my question is if you have a good tip on what I should do on the balcony. Should I lay a new plastic mat under these green plastic tiles?