A.Todd Miller, president of Classic Metal Roofing Systems, responds: Even though I don't know of any manufacturers who recommend this as part of their standard installation procedure, painting the cut edges of steel roofing wouldn't be a bad idea.

While most manufacturers offer matching touch-up paints, all you would actually need to do is rig up some simple method (brush or roller or dip tray) and apply a quality rust-inhibiting primer or paint.

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