I wanted to know which all Italian marbles are best suited for exterior cladding?

Anita Vitrified tiles by themselves do not particularly allow the walls to breathe, and hence are prone to cracking. That being said they do not collect moss either. If you are however set on using these tiles, I suggest you use them in a mosaic fashion, where smaller tiles or broken pieces are used. This will allow the wall to breathe, though the moss collection might be more due to the greater amount of grating.

Would like to suggest you to go for Natural and local as far exterior cladding goes.

Tks Prasath, on " balcony also can think invisible grill " can you give me some more details with some photos for me to understand better