We have some of these around me where there is a lot of snow and they are so so bad in that application. Neat elsewhere, though, and visually interesting.
"Bad" is a pretty serious understatement.
They create a natural spot for drift creation, say nothing of what happens when it starts melting and everything winds up in the trough.
It is remarkable how a seemingly simple architectural idea can have such practical impact. The saw-tooth roof demonstrates that straightforward, well-considered design can optimize natural lighting while minimizing complexity in construction and maintenance. Its combination of simplicity and functional efficiency makes it a highly effective solution in both historical industrial contexts and modern sustainable architecture.