29+ How To Install Metal Roofing Over Shingles. After completing construction on a new barn, the customers asked me about the possibility of putting a metal roof on their home to match the roof on the barn. Installing metal roofing over shingles is the best solution.
Adding shingles on to a roof can be challenging and dangerous.
Lets look at different issues that may arise when you install a roof over existing shingles and/or damaged plywood. A metal roof is an alternative to a shingle covered roof, but a metal roof can actually be installed over shingles. Metal or steel roofing can be installed over existing composite asphalt shingles with the addition of a framework. I'd like to use the regular ol' galvanized silver 3'.