Metal flashing needed to keep water, rot at bay - Columbus Dispatch

When a flashing is used on a roof, it is typically used to transition from roofing material to something that's not a roof. For example, you need flashing where ...

Source: http://www.dispatch.com/live/content/home_garden/stories/2011/05/22/metal-flashing-needed-to-keep-water-rot-at-bay.html?sid=101

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