Fixing a leaking skylight requires a systematic approach that begins with protecting your home's interior and moves toward diagnosing and repairing the exterior. First, place buckets and towels under any active indoor drips to prevent water damage to your floors, furniture, and ceilings. Once the storm passes and the roof is completely dry and safe to walk on, inspect the skylight's exterior components for clogged drainage channels, cracked glass, or deteriorated metal flashing. For minor leaks caused by small gaps in old caulk, clean the surface thoroughly and apply a thick bead of exterior-grade polyurethane or silicone sealant. If the leak is severe, or if the metal flashing is rusted and improperly installed beneath the surrounding roofing shingles, you will need to hire a certified roofing professional to strip back the materials and install a brand-new, watertight flashing kit for a permanent solution.
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