When rainwater pours directly down the inside of your chimney flue during a storm, it typically indicates a missing or damaged chimney cap, an absent spark arrestor screen, or a cracked clay tile liner. The chimney cap acts as an umbrella over the flue opening, preventing precipitation from falling straight down into your fireplace or wood stove. Without a cap, heavy rain saturates the smoke shelf and firebox. You can troubleshoot flue water intrusion easily by looking up into the damper or inspecting the chimney top from a safe ground position with binoculars. You can verify that your corrective action is successful when installing a heavy-duty stainless steel chimney rain cap and sealing any flue cracks stops water from entering your home during future storms.
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