How to Install Corrugated Metal Roofing: A Step-by-Step Guide with Tips and Warnings. This video provides a step-by-step guide on how to install metal roofing, specifically corrugated metal roofing and standing seam metal roofing. The first step is to prepare the roof surface by removing any old roofing, rotten wood, and adding roofing felt to the entire surface. Then, the number of sheets of corrugated metal needed should be calculated and the first sheet should be placed in a corner of the roof, flush against the surface. The sheet should then be nailed to the wood of the roof, with about 20 nails per sheet, in the valley between the ridges. The second sheet should be placed alongside the first with an overlap of 3 to 4 inches and secured together using hex screws and washers. The same process should be repeated for the other sheets, overlapping on every side except for at the edges of the roof. Ridge caps should be secured to the bottom lip of the roof, overlapping both with each other and with the sheets using hex screws and nails. The roof should be tested for any loose spots or places where water can seep in. Additionally, the video provides metal roofing tips such as using caulk in between overlapping sheets and accurate measurement for screw placement. The materials needed include sheets of corrugated metal, metal ridge caps, roofing felt (if needed), nails, hex screws, washers, hammer, and drill.

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