Broken flue cap repair

A damaged flue cap can be repaired by just about anyone, if you follow some simple instructions. The procedure itself is simple, but time consuming.

Tools and materials needed

  • Caulk
  • Caulk applicator
  • Pair of pliers
  • Trowel
  • Cold chisel
  • Chimney brush
  • Hammer
  • Screwdriver

Tighten screws

Problems with a flue cap can be as common as the loosening of the screws that keep it in place.

All you have to do is tighten the screws back using a screwdriver. If the cap is mounted using adhesive, you need to reapply a layer of adhesive and secure it into place. Informing yourself using the producer’s manual will help you in most situations.

Caulk flue cap leaks

If the flue cap has leaks in it, you just need to caulk the leaks using a caulking gun. Consulting a manual is strongly recommended. When the caulk dries, the leaks shouldn’t be a problem anymore.

Solving dents

A copper or steel flue cap can suffer dents over time. You can use a hammer to straighten the dents out or even just pliers if the dents are small. If the dents are too serious and seem impossible to repair, it is strongly recommended to replace the cap.

Damaged mortar

A mortar based flue cap will suffer from deterioration over time. Using a hammer and a chisel, break the damaged mortar, and then apply new mortar using a trowel. Consulting a manual related to thisĀ  is highly recommended.

Cap screening

Flue caps that have a screening that protects the flue from dirt, and debris. It can clog and reduce draft efficiency so it must be cleaned to a suitable state.

Repairing a flue cap, regardless of the issue can be solved with a little information and practice.

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