Cap flashing (counter flashing) inserted into mortar joints will cover the top edge. Bend a flap down Run the base flashing 4 to 5 in. beyond the dormer and cut the top section along the dormer edge.

Assessing a roof leak. Some overhead leaks are due to minor problems--such as a single torn shingle or a small hole in flashing--that you can usually handle with a little DIY experience and some ...

Key Takeaways. The cost of replacing chimney flashing averages about $1,000.; Costs vary depending on the type and materials used, with copper flashing being the most expensive and galvanized ...