If you're able to’t see any telltale move marks, search for ‘shiners’ poking from the underside from the roof. A shiner is often a nail that skipped the framing member once the roofer nailed down the roof decking. Diligently cut a rectangle-shaped segment which contains the entire harmed roofing material. https://lorenzoruxcc.blogstival.com/55761617/the-definitive-guide-to-roofing-supplies