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I was asked this question this morning.
Most UK homes built before the 1980’s are double walled brick. There a gap in-between both of a few inches. Local councils decided to remove this gap with cavity wall insulation a few years back.
The problem was….brick work on older houses is in a poor condition and filling inside the walls starts to transmit the moisture to the inner wall, causing damp & mould.
And this is the same problem with blocking up chimneys and fire places.
There no issue with over boarding a fireplace and adding a vent, but back filling a chimney flue and removing the chimney pot will lead to problems in the long term.
As a rule, there relined and capped off with a vent.
Spending a little time and money doing this right can save money later on. Damp & mould can cost thousand’s to sort out and find the cause was a lazy builder blocking up old chimney flues really frk you off.
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This topic was modified 3 years, 8 months ago by
Mr Fishy.
I think fishy has lost it.
No mids shikh ask me about this earlier.
soem older homes without double ‘leaf’ walls can even suffer badly if interior insulation is fitted to outer walls. creating problems . all properties that allow moisture or water to penetrate or form on walls etc will create issues. hence reason lofts are never sealed but insulated allowing a free flow of air . check near edge of loft and u will find they do not cover right up to edges as that stops draughts ( airflow) that remove moisture etc. it always costs far more to put things right. neighbour bought property and had mould in bedroom form behind headboard . turns out previous owner had had a chimney vent blocked . an air vent was added to allow air flow and mould problems evaporated :)
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This topic was modified 3 years, 8 months ago by
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