Every chimney shows signs of wear at some point over the years, which interfere with its function and can also be seen from the outside. If you want to renovate the outside of a chimney, however, you should consider a few things.
When the chimney becomes unsightly on the outside
A badly damaged chimney can cause unpleasant odors or pose a health hazard. Many chimneys can already be seen from the outside that they are no longer in perfect condition. Before you think about painting, you should first eliminate the problems that caused the improper function and the visual impairment. These can be, for example, the following defects:
- Also read - plastering the chimney inside and outside
- Also read - Retrofitting the chimney - these possibilities exist
- Also read - Chimney renovation with stainless steel
- Age-related signs of wear
- a sooting of the chimney
- Cracks in the chimney wall
- Damage from things getting into the chimney
Important: consult the chimney sweep beforehand
Before doing any work on the chimney, you should first consult the chimney sweep and get advice on what measures should be taken to eliminate the existing damage. It may be necessary, for example, to provide the outside of the chimney with insulation and then to clad or. to delete. In no case should you just apply any paint on the outside, especially not for chimneys or. Fireplaces unsuitable colors. Refurbishment is often necessary when an old heating system has been replaced by a new one, for example when converting from heating oil to gas. If you want to carry out a renovation on this occasion, you should also seek advice.
Sooting as the cause of an unsightly chimney
So-called sooting occurs when the chimney is penetrated by water, tar and acid. Above all, it is the acidic condensates that can impair the entire structure of a chimney. From the outside, brownish spots can usually be seen, which also produce unpleasant smells. Sooting is a serious matter, as the tar deposited on the inner wall can ignite at high temperatures. So if there is sooting, the causes should first be eliminated before you carry out a chimney renovation or a paint job.
After the renovation
The chimney must be removed by the chimney sweep after the renovation in order to ensure continued operational safety.