Join between exposed stone and ceiling plaster

5 Oct 2020
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United Kingdom
Hi All,

First, apologies if this is in wrong thread - wasn't sure if it was decorating/ plastering etc.

In short, I'm trying to come up with a solution to neatly seal or cover the join between where the exposed stone wall meets the plastered ceiling. Photo for reference. We get occasional gumpf and bits of rubble falling down from loft above onto the cooker which makes dinner an exciting but less than pleasant affair. Plus it's draughty as anything. The uneven relief on stonework makes coving or similar tricky.

Recently moved in, and ultimately think will cover up (probably years from now), but any advice would be welcome. n.b. Dangling cable is a lighting circuit which has been rigged to power a 12kW external oil boiler on other side of the wall - that's another issue for another day though.



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Decorator's caulk will do a reasonable job, and cheap and easy. You'll need to buíld it up in a few layers to fill the big gaps. Don't use expanding foam, it will make a right mess.
Lightweight small profile coving would be easy to fit and seal .
My choice would be a hardwood trim fixed to ceiling and sealed against all.
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Thanks @freddiemercurystwin , yeah It's a lovely bit of wall exposed by the previous owners, ideally I'd love to keep it, at least partially - but It'd mean some hefty cladding insulation outside, complicated by the oil boiler being attached to exterior directly on other side of hearth. Ho hum.

There's a theme of scaffolding board absolutely everywhere about this house from prior folk, like that bit up the left hand wall in the picture (covering another huge gap), perhaps could incorporate something similar as a kind of coving as per @foxhole's suggestion, although not flexible at all so would need to caulk some hefty gaps if so. Thanks for suggestions all!

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