One thing we noticed when on the Slovenian leg of our vacation is that a lot (most even) roofs in small towns have these little triangular-shaped brackets on them (photo) and some had additionally or instead brackets holding up flat panels near the edge (photo).
No one in the immediate vicinity could say what those roof features were for. (I was imagining that they were for roof-cleaning elves to clip their safety lines into while they worked.) Does anyone know what the deal is?
They look like they’re meant to keep snow from sliding off the roof. You can see similar things (although not in so great a number) on roofs here in the Northeast. Especially above doorways, where you don’t want the snow sliding off onto people when they slam the door shut.
“Snow dogs”. Not sure about the second image, but I imagine they serve the same purpose, although an additional use may be to prevent snow from overloading the rain guttering.
It’s to keep the kids from skateboarding down them.
With a metal roof, when you heat the building up, if there is lots of snow on the roof, it can let loose in one enormous load. That could be dangerous if you were exiting the building, say. The baffles break up the big load so it falls more like lose snow, less like an iceberg.