Leakage in Attic After Wind-Driven Rain
Possible cause: Leaky or inadequate shingle underlayment or deteriorated flashing.
Leakage in Attic After
Possible cause: Inadequate shingle underlayment allows water from ice dams to leak into attic.
Blistering and/or Peeling of
Interior and/or Exterior paint
Possible cause: Excessive temperature or high humidity due to poor attic ventilation.
Stains on Interior Ceilings and Walls
or Mold and Mildew Growth
Possible cause: Inadequate or faulty shingle underlayment allowing leakage or inadequate ventilation.
Sheathing, and/or Siding
Possible cause: Poor attic ventilation.
or Curled Shingles
Possible cause: Shingles have reached the end of their useful life.