[BIG flash]

If u go standing seam, put seam mounted snow bars on it so people don't die from snow and ice coming off there

 

[BIG flash]

by the way, as an architect I generally love metal roofs. i just had to do a complete tear off on my own home and went with shingles though as i'm not planing to stay here much longer. if was a house I was planning to stay at, i would go metal if i could afford it..