Balcony Drainage Details: Ensuring Effective Water Removal

https://persianmystic.com/index.php/Rainfall-Driven_Design:_Temporary_and_Permanent_Waterproofing_Considerations

Balconies sit at the edge of a building envelope, a small outdoor stage where weather performance meets daily use. When drainage is overlooked, water can linger on the deck, migrate into parapets, or infiltrate railing pockets and stair lands