Steel Roof Tips
I recently had to re-roof an old house, and chose painted steel. To reduce the footprint created, I was careful to use both sides of the diagonal cuts and generally avoid scrap, and I used sawmill scrap for the strapping.
Information on how to put steel over shingles is hard to come by. The manufacturers don't want to discuss anything but all-new work, and the YouTube videos are somewhat contradictory. Doing it this way, I was able to do it all myself without risking disaster, and the old roof is still there for backup and insulation, etc.
If I were doing another house, I'd know a lot more about how to do the strapping in ways to make the rest easy, and various other tricks. Let me know if you have queries.
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