Flashings. Consider replacing your chimney flashings if they are covered with roofing cement, or you notice stains in your attic. Correct installation of metal flashings is critical to preventing water entry and eventual wood decay to the adjacent wood framing. Install in steps (ie. step flashings) that are inserted one inch into the chimney mortar joints. Install counter flashing over the step flashings for the best results. If a new roof is planned for your house, have the contractor replace the existing flashings.

Flues. Ceramic flue tiles take a beating from wet weather and exhaust gasses from your boiler or furnace. If the environment is harsh enough, pieces of tile can fall out and become lodged in the lower portion of your chimney. Install a rain hood (with screen) to prevent moisture (and animals) from entering (and nesting in) your chimney. If it doesn't have flue tiles, consider an after market flue system that protects the masonry from deterioration.

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