We’re thinking of using Skirl on a house we are building in Montana. Being from the west coast we don’t see a lot of Skirl being used around here. Can someone with experience tell me how it holds up to severe weather (think snow and ice), how it “weathers” over time, and what kind of maintenance it will need? Powerwash and seal once a year? Once every 3-5 years? Any help would be appreciated! 
What the heck is Skirl? A web search turned up nada for me re: building products.
Here you go: Skirl
I was sure this was going to be about bagpipes. Oh, well.
Lots of folks in the Colorado high country swear by this: Penofin