What to Know About Roof Flashing and Weather Sealing

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Roof flashing is the thin metal or rubber installed at joints and edges to prevent water from sneaking into your home. Weather sealing goes hand in hand, using caulk, tar, or modern tapes to fill gaps around chimneys, vents, and skylights. Even a tiny crack in the flashing can lead to major leaks, so it's wise to inspect these areas after heavy storms and reapply sealant as needed. Properly maintained flashing and sealing keep your roof strong and your attic dry.