Installing Chimney Flashing

Leak-proof your chimney using this traditional, time-tested flashing method

Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

  • Extension ladder
  • Grinder
  • Roof harness
  • straight cutting tin snips

Diamond blade (dry-cutting), roof brackets

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

  • Galvanized step flashing
  • Galvanized coil stock
  • 26-gauge galvanized sheet steel (for prefabricated pieces)
  • Galvanized front base flashing
  • Self-adhering roofing membrane (ice and water barrier)
  • Polyurethane caulk
  • Drive-in expanding anchors