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The Importance of Maintaining your Chimney
A chimney’s function is to channel smoke upwards, out and away from our homes. We can often take for granted their importance and neglect the regular maintenance they need to ensure their build is kept intact, and their function met safely. Over time, the pointing of a chimney may split and the structure of its walls could develop cracks. After a period of 25 or 30 years, the mortar joints that bind the stone and brick will corrode; resulting in a flaking and cracking of the joints, leaving the pointing in need of repair.
What causes the cracks in my chimney? The cracks that materialise in the pointing of a chimney can often be explained by the natural process of freeze-thaw weathering. This process occurs when tiny amounts of water gather inside the smallest holes in the pointing. As the temperature falls overnight, the water freezes and expands. When the water melts, it leaves behind a larger space in the pointing for the next rainfall to seep into (and so the cycle continues). If left for too long without being repaired, the structure could become unstable.
Freeze-thaw weathering can also impair any metal object attached to the build of a property, such as a satellite dish.
What causes my chimney to leak?
Usually, the cause of a leak is defective flashings. These can be caused by:
Incorrect installation. Weathering. Lack of maintenance.
If left for a long period of time, any leaks will cause the walls of your home to become damp. If you find a leak, seek professional help as soon as possible for an emergency repair. Continue reading “Chimney Repairs”