Understanding Flue Leakages
Should a homeowner detect the scent of smoke within any section of their domicile whilst a flue in the chimney stack is operational, it is typically indicative of smoke seeping from a compromised flue.
As the flue meanders through the property, smoke and flue gases can escape from a defective flue into adjacent flues or infiltrate attic spaces and floor voids.
Indications of Flue Leakages
Indicators that flue gases are emanating from a flue encompass:
- The presence of smoke odours within rooms, and in severe instances, a visible haze of smoke.
- Dark tar blemishes on the chimney breast, both internally and externally.
- Dark smoke traces on carpet peripheries, surrounding electrical fittings, and on decorations.
- Smoke manifesting through multiple chimney pots at the chimney’s apex during flue usage.
Hazards Associated with Flue Leakages
Wood smoke harbours carbon monoxide (CO), nitrogen oxides (NOx), and carcinogenic substances like benzene, posing significant health risks upon inhalation. Gases from leaking flues can also deposit tar and creosote in attic voids, presenting a substantial fire hazard.
In the event of a chimney fire, a leaking flue will fail to prevent the fire from infiltrating the property, potentially allowing the fire to rapidly propagate from the flue into the domicile itself.
Remediation of Leaking Flues
The conventional method for mending a leaking flue involves the installation of an appropriate liner within the existing flue. The type and dimension of the liner employed will depend on the open fire or appliance served by the flue. Chimney Flue Engineers can provide and install an extensive array of flue liners, ensuring a suitable solution for most flues. For additional information on liner types, please click here.
