This homeowner manual addresses the ‘major a few’ need-to-know phases of the venture, and provides information and steerage that may set your intellect at simplicity: Putting new shingles above outdated ones requires a flat, even surface area. Masking an uneven roof which has a fresh floor product will look unprofessional. https://local-metal-roofing-contr98776.shotblogs.com/the-smart-trick-of-metal-roofing-contractors-that-nobody-is-discussing-42853089