Is it a bad idea to put a metal roof on my house?

We have been installing metal roofing since 1987, and have had no problems with them. Because the roofing is against roofing felt and a solid deck, the effect of ringing is dampened to almost none. Even better if your planning on using some insulation under the deck. Long term, the only thing that can go wrong with a metal roof is after 25 years or so, the paint might begin to start chalking, so ultimately you may need to repaint the roof. It is cheaper than say tiles, or slate, but if you have a lot of valleys, or its cut up, you might get a labor add-on for those areas. But still, there is no downside to a properly installed metal roof. It will last forever!