Flaunching and chimney pots are closely connected, even though they're often thought of as separate problems. The flaunching, a sloped mortar fillet at the very top of a stack, exists largely to shed rainwater away from the brickwork while also holding the chimney pots firmly in place, so a problem with one very often points to a problem with the other on Easton's older chimney stacks specifically. Treating these two components as a single system, rather than addressing them separately as problems arise, tends to produce a more durable result overall.
Cracked flaunching is usually the first sign something's wrong. Because it sits at the top of the stack, exposed to more weather than almost any other part of the chimney, it tends to deteriorate faster than the brickwork below, and once cracks appear, water gets straight into the top of the stack rather than running off as intended by the original design. Because this pairing is so common, a contractor inspecting one is generally well placed to assess the other at the same time, without needing a separate visit or additional access costs.
As flaunching continues to deteriorate, the pots it's meant to secure become progressively less stable. A pot that rocks slightly in strong wind, or looks visibly tilted from ground level, is often a sign that flaunching failure has already progressed further than it might first appear, since the mortar holding that pot in place has lost much of its grip on the surrounding brick.
This combination matters because a pot that eventually comes loose on a chimney stack is a genuine safety hazard, particularly on Easton's terraced streets where stacks often sit above pavements or close to neighbouring properties. Addressing cracked flaunching before a pot actually works loose is considerably safer, and considerably cheaper, than dealing with the aftermath of a pot that's already come away from the stack. Getting both elements right at the same time also tends to be more cost-effective than treating them as two separate jobs spread months apart.
Repairing flaunching properly involves removing the damaged mortar and rebuilding a correctly sloped cap around the base of each pot, rather than simply patching over visible cracks, which tends to fail again within a season or two at most. Where a pot itself is cracked or damaged beyond repair, replacing it at the same time as the flaunching avoids paying for scaffolding access twice over. A properly fitted pot and sound flaunching together also make it considerably harder for wind-driven rain to find a way into the flue, reducing the chance of related damp problems developing over time.
If flaunching or a pot on your Easton chimney looks in poor condition, it's worth having both checked together rather than treating them as separate issues. Brunel Roofing Bristol offers free inspections covering the whole top of the stack, with a straightforward quote for whatever repair is needed.
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