Roof Damp Flashings
Renew Flashing
Take out the defective to and rake out joints of brickwork to a suitable depth and replace with new stepped lead cover flashings in code 4 lead wedged and pointed in cement/sand (1:3) mortar finished with joints struck flush.
Roof Damp Flashings
https://plumobsidian.github.io/p/8afe1ad2899d459b8dd2048a7c277662/