Roof leak detection
Finding where the water actually gets in
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.
Saybrook gets the full range — freeze-thaw cycling through winter, severe convective storms with hail and straight-line wind in spring and summer, and enough temperature swing between them to work every joint on the roof loose. Freeze-thaw is the quiet one: water finds a hairline gap in flashing, freezes overnight, expands, and opens it slightly wider, repeating through a McLean County winter until a joint that was watertight in October is leaking by March. Spring brings the loud damage, and derechos have put straight-line wind through this region at speeds that take ridge caps and whole shingle courses. Housing stock here is older than average, which means a lot of roofs where the flashing has already been through several decades of that cycle.
Saybrook has a population of about 654, and the housing stock here sets the pattern for what fails first on a roof.
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.
Finding where the water actually gets in
Damp insulation, dry ceiling
The sheathing under the shingles
Single-ply flat roof membrane
Condition assessment and report
What repairs actually cost here
You will get a straight answer on whether Saybrook needs someone out today or whether it can wait — before anyone quotes you for anything.
Call (706) 696-1888