Valley leaks
Where two roof slopes meet
Wood shakes split, cup and go soft at the butt end, and they are vulnerable to moss and trapped debris holding moisture against the timber. They need to breathe from underneath, so anything that blocks airflow shortens their life sharply. Repair means replacing individual shakes and clearing what caused the decay rather than coating over it — surface treatments applied to shakes that are already failing seal moisture in rather than keeping it out.
Green County 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 Green 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.
Only when the shakes are sound. Coating shakes that have already begun to decay traps moisture in the timber and accelerates the failure. Clearing debris and restoring airflow does more for life expectancy than any coating.
It holds water against the timber continuously instead of letting it dry between rains, and its roots work into the grain. On wood it is a genuine durability issue rather than the mainly cosmetic problem it is on asphalt.
Where two roof slopes meet
Keeping debris out of the gutter
New build and full re-roof
Clearing, repair and replacement
Vinyl, fiber cement and wood
Scheduled checks instead of emergencies
You will get a straight answer on whether Green County needs someone out today or whether it can wait — before anyone quotes you for anything.
Call (706) 696-1888