Terms of the Trade: What Is Roof Flashing?

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Roof flashing is one of those simple solutions to an inevitable problem. The weather starts getting wet, rain falls on the home, and leaks through the ceiling are bound to occur at some point in a homeowner’s life. The solution is thin pieces of material, usually metal, installed over seams and joints to circumvent the passage of water either off the building or to a more waterproof area. Flashing is usually installed where the edge of a chimney, vent, dormer window or skylight meets the roof, and can be either under or over roofing material.