>>7832612>Wouldn't the rain stop against the wall?No, they have a slight angle to the top of them so rain would run off away from the building.
>There is literally no point in having these ledges if you can just tilt your window.Aside from rain protection such canopy/awning can also be used for sun protection, particularly around the middle of the day when the sun is at it's highest point in the sky and thus the light/heat are at their strongest.
