Chimney Flaunching Repairs in Lawrence Hill

Few homeowners in Lawrence Hill actually know the word flaunching, yet this small band of mortar at the top of the stack is often the first line of defence against water getting in around the pots. It holds each pot securely in place and is shaped to shed rainwater away from the flue openings rather than letting it collect and seep down inside the chimney, doing its job unnoticed for years until it eventually fails.

Sitting at the very top of the stack, flaunching is exposed to more weathering than almost any other part of the roof, taking the full brunt of sun, frost and driving rain with no protection from surrounding structure at all. It's not unusual to find flaunching on older terraced properties across Lawrence Hill that has cracked, crumbled, or separated from the pots it's meant to be securing, often without this being visible from the ground unless someone knows exactly where to look and precisely what to look for.

The knock-on effects of failed flaunching aren't always where you'd expect. Water getting past a cracked fillet tends to track down inside the flue itself, sometimes appearing as damp on a chimney breast in a room some distance away from the actual chimney, which can make the cause genuinely confusing to pin down without a close inspection of the stack rather than a guess based on where the damp eventually shows up indoors, well after the water has already found its way in.

Repairing flaunching is typically a more contained job than full repointing or a rebuild, involving raking out the failed mortar around each pot's base and reforming a fresh fillet with the correct slope to shed water properly away from the open flue. It's sensible to have the rest of the stack checked at the same visit, since cracked flaunching is often an early sign that a chimney is due some wider attention rather than just an isolated fault that can be dealt with entirely on its own.

Even chimneys that are capped or no longer in use still need sound flaunching, since a disused flue with failed flaunching can let water into the stack and eventually the roof structure below just as readily as an active one still in daily use. It's an easy repair to overlook simply because it's out of sight, and it's often only found once a homeowner asks about a seemingly unrelated issue somewhere else entirely on the roof.

If you've noticed cracking around your chimney pots, or damp appearing without an obvious external cause, flaunching is worth checking early rather than simply waiting for it to worsen over another winter. It's a small job to have looked at and a straightforward one to put right once identified properly. Brunel Roofing Bristol inspects and repairs chimney flaunching across Lawrence Hill, with a free quote provided before any work goes ahead.

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