It's my understanding that rain barrels on downspouts are Verbotten also... yeah, go figure. I am familiar with the Longmont salvage yard, I used to work a couple blocks from there. It's a part of town that is starting to see urban sprawl. An industrial "ish" area that is being cleaned up. I'm surprised the yard lasted as long as it did. If you want good "solid" sheet metal Southern Colorado is a much better choice. Longmont isn't really all that arid in comparison, and the sheet metal reflects that. It's all relative though. Compared to Ohio, the trucks in the Longmont yard are "cherry".