In this video, This Old House general contractor Tom Silva explains how to install a rain diverter.

Project details

Skill

Cost

Estimated Time

Roof Rain Diverter Installation Steps

  • Sand underside of flashing with 80-grit sandpaper to help paint adhere; wipe surface clean.
  • Spray-paint bottom surface and up-turned edge of flashing to match color of roof.
  • Cut flashing in half using aviation snips.
  • Use flat pry bar to loosen stuck roof shingles.
  • Lay one flashing piece upside-down (painted side facing up) on roof at an angle and slip it under the shingles; repeat for the other flashing piece.
  • Secure the flashing with roofing nails; be sure to place each nail under a shingle.
  • Cover the nail heads and seal down each shingle with caulk.
  • Spray the roof with a garden hose to test the effectiveness of the rain diverter.

More: How to Install a Rain Gutter; How to Install a Rain Chain

Tools

Tools & Materials

  • Flat pry bar
  • Aviation snips
  • Hammer
  • Caulk gun
  • Ladder