Recently purchased a 1950's house which has cavity wall insulation, however the bedrooms still have the largish internal wall air vents. I know that these were to help the ventilation of the property. But now the the cavity wall insulation is in, could these be removed and the gap bricked up and tidied up? We would have the top UPVC window slightly ajar but locked. Would this be sufficient for the ventilation as these vents do look a bit ugly nowadays. Thanks in advance .
If they are the vents in the frame itself at the top, no. But we plan to have the small window at the top slightly open but can still be locked in the frame.
This is quite a tricky question, as it depends upon many factors, i.e. number of occupants etc. It may be a good idea to temporarily block the vents and see how things go over the winter. Homes suffer condensation problems by fitting cavity wall insulation, loft insulation and energy efficient windows.
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