Chimney and flashing leaks
Leaks around the chimney stack
Slate lasts a century or more, and what fails first is almost always the fixings rather than the slate itself — nail sickness, where the fixings corrode and slates begin to slip, is the classic failure. Repair is specialised work: slates are refixed with hooks or tingles rather than simply nailed back, and walking the roof incorrectly breaks more than the original fault. Replacement is enormously expensive, so repair is nearly always the right call on a sound slate roof.
Dekalb County sits in the metro Atlanta hail and wind corridor. Spring storm season here does two kinds of damage, and only one of them is obvious. Straight-line wind lifts shingle tabs, breaks the seal strip underneath, and drops them back down looking untouched — the roof then leaks in the next storm from a spot that shows nothing from the ground. Hail does the other kind, bruising the mat under the granules so the shingle fails months later. Housing stock across Dekalb County skews newer and denser than most of the state, which means a lot of architectural asphalt in the 10-to-20-year band where the seal strip is past its best but the roof is nowhere near replacement.
Corrosion of the original fixings, so slates lose their hold and begin slipping one after another even though the slate itself is sound. A few slips in quick succession is the sign, and it means the roof needs assessing as a whole rather than slate by slate.
Almost always. The material has decades of life left and replacement is extremely expensive. The constraint is finding someone who works on slate properly — bad access does more damage than the original fault.
Leaks around the chimney stack
Leaks appearing after wind or hail
Damp insulation, dry ceiling
The sheathing under the shingles
Full tear-off and new covering
Clearing, repair and replacement
You will get a straight answer on whether Dekalb County needs someone out today or whether it can wait — before anyone quotes you for anything.
Call (229) 235-1425