When making valleys with Architectural tiles, I will see times like in photo where the tiles line up such that a lower tile is on top of a higher tile where it would seem water can intrude as it runs down hill.
Is this truly a flaw or because of the varying heights of tiles or something and layers, is it a non-issue in valleys.
Also the valleys stay wet. Is that just normal for a rainy day as more water runs down it, or indicative of holding moisture where it should be running down.
Thanks
Warm regards
Steve