Does anyone have any experience with metal roofing? I'm needing to replace my 30 year Certainteed Supremes (that only lasted 11 years). I want to put a metal roof on now as it will be he last for me. I will want to tear off the old down to the sheeting which is 1X6s. There are small gaps between the 1bys and I'm wondering if that will be a problem with the metal roofing? What seems to be the best metal roofing to buy? Thanks!