Madison Roof & Leak
Lake Mills, Wisconsin

Slate roof repair in Lake Mills

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.

Call (706) 696-1888 Jefferson County

What the job involves

  • Replacement of broken slates with matched salvaged stock
  • Assessment of fixing condition across the roof
  • Check of lead work at valleys, hips and abutments
  • Access arrangements that avoid loading the slate directly

Signs you need it

  • Slates slipped out of position or missing
  • Slate fragments in gutters or on the ground
  • Several slips in a short period, suggesting nail failure

Why roofs fail in Lake Mills and Jefferson County

Lake Mills has a winter long enough and cold enough that ice damming, not storm damage, is the dominant cause of roof leaks. The mechanism is heat loss rather than weather: warm air escaping into the attic melts snow on the upper roof, the meltwater runs down and refreezes over the cold overhang, and the resulting ridge of ice backs water up beneath the shingle courses until it finds a way in. The roof itself is usually in perfect condition. Repeated through a Jefferson County winter, freeze-thaw also works every flashing joint progressively looser, and spring brings hail and straight-line wind on top. The reason this matters is that fixing an ice dam leak by working on the shingles does not work — the problem is insulation and ventilation, and that is a different job.

Lake Mills has a population of about 5,708, and the housing stock here sets the pattern for what fails first on a roof.

Questions about slate roof repair in Lake Mills

What is nail sickness?

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.

Is slate worth repairing rather than replacing?

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.

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Call (706) 696-1888
Call (706) 696-1888