We bought a vacation place a few weeks ago, and I have a stove to install. Some brief searching hasn't shown me much for what to use to penetrate a metal roof. I found a silicone boot from Selkirk, but I'm not sure if that's what I need. We're taking a U-Haul full of crap in a couple of weeks, and I may be able to get the stove in, if I can gather what I need in time. It isn't corrugated, it looks like this. I think. I have only seen it once when it wasn't snow covered.