Roof Flashing Techniques for Outside Corners

Make roof dormers and other outside corners leakproof

Required Tools for this Project

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

  • Hammer
  • Caulk gun
  • Tin snips

Required Materials for this Project

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

  • Galvanized metal flashing
  • Roofing nails
  • Silicone caulk