Douglas Roof & Leak
Leak repair

Flashing replacement

Flashing is what seals every junction on a roof — walls, chimneys, valleys, penetrations — and it is where most leaks begin. It fails through corrosion, through movement opening the joint it was set into, and through having been installed as a surface detail rather than stepped properly into the courses. Replacing it means working into the surrounding material rather than sealing over the top, which is why it costs more than a patch and why it lasts.

Call (229) 592-0097

What the job involves

  • Survey of all flashing runs — wall, chimney, valley, penetrations
  • Removal of failed flashing rather than overlaying it
  • Correct stepping into shingle courses and masonry joints
  • Replacement of corroded fixings and sealant at terminations
  • Check of counter-flashing where it is set into mortar

Signs you need it

  • Rust streaks or visible corrosion on flashing metal
  • Leaks confined to one junction rather than the open roof
  • Sealant visibly applied over flashing by a previous repair

Where we cover

Each area has its own page for flashing replacement.

Questions

Why does flashing fail before the roof does?

It is thinner material in the most exposed position, and it sits across a joint between two things that move at different rates. On most roofs the flashing is the first component to need attention, often by a decade.

Can flashing be replaced without redoing the roof?

Yes. It means lifting and reinstating the surrounding courses, but it is a localised job on an otherwise sound roof and far cheaper than replacement.

Related work

Describe what you are seeing

South Georgia roofs take long-duration wind from tropical systems and then sit in heat and humidity the rest of the year. Water that gets in does not dry out on its own.

Call (229) 592-0097
Call (229) 592-0097