Chimney Flashing Overview

Flashing is a thin layer of metal used to prevent water from entering through joints or projections in a roof such as chimneys, vent pipes, dormers, and intersecting walls. Typically, flashing used on modern roofs is made from aluminum or galvanized steel, but some installers choose to use flashing made from copper, lead, or a number of different alloys or synthetic materials.

Chimneys are one of the most common culprits when it comes to roof leaks, and one of the most frequent causes is a problem with the chimney flashing. When installed properly, chimney flashing directs water away from the joint where the chimney meets the roof. However, the flashing may need to be replaced if leaks are occurring around the sealed area.

Sometimes, this may be due to damage or wear-and-tear to the sealant used between the flashing and the chimney, or even degradation of the chimney itself. Often, though, these leaks are caused by problems with the flashing itself, which could require its repair or replacement. This could be due to:

  • Deterioration of the flashing over time
  • Improperly installed flashing
  • Damage to the flashing (from vegetation or animals)

If your home is experiencing an active leak near your chimney, we are happy to inspect your roof and discover the cause. We have the experience and the expertise to identify and remediate any issues with your chimney flashing, including a full replacement.


Is your home or business in need of a new roof? We specialize in installing Malarkey and GAF lifetime warranty roofs, Duro Last PVC, and standing seam metal roofs. Contact us today to schedule a free roof inspection and get a quote!

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