John La Torre Jr.

Q: I am installing corrugated metal roofing. What is the best way to cut the roofing to fit a valley?

A: John La Torre Jr., a builder in Tuolumne, Calif., replies: A circular saw equipped with a metal-cutting blade will work just fine. Set the blade just deep enough to cut through the low parts of the corrugation and cut slowly. I have also had good results cutting metal roofing using an angle grinder equipped with a metal-cutting blade. Other...

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