Q: I need to install a deck ledger board against a house with wood lap siding. Soon I’ll be doing the same on a brick home. What is the proper way to install flashing so I don’t get any leaks where ...

Pry, chisel and scrape off old metal flashings and roofing cement. Before you do anything, get your ladder, roof brackets and safety harness set up so you can work safely and efficiently on the roof.

Flashing is a good way of preventing water from entering a dwelling at the point where the roof meets the walls. To begin the installation, fold a five-by-seven piece of aluminum flashing lengthwise.