What is the hanging edge of the window sill?

Hanging edge refers to a vertical or inclined water retaining strip or railing installed on the edge of the window sill.

The hanging edge of the window sill is usually used to prevent rainwater or other liquids from flowing into the room along the window sill. It can be a simple water stop or a decorative railing.

The hanging edge of the window sill can be made of metal, wood and plastic. It not only has practical functions, but also beautifies the window sill.