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We live in a 200 year old farmhouse with the majority of main walls being solid stone or cob and 18" thick. At the rear we have a single storey extension which was originally added in the '70's, containing our utility and bathroom. This was originally built as single skin, but we upgraded to cavity wall (adding a 2nd skin of blockwork) in 1997. We have just upgraded the loft insulation in this area, and are considering cavity insulation. However, the external wall in one area is literally built into the bank at the rear of the house. This means that there is no external access to the outer skin, so the insulation material will have to be installed through the inside. Our only experience of post-build cavity insulation is via the outside wall - can it be done from the inside?
Also, as the outside wall is against the bank, would filling the cavity create more problems than it solves, ie ingress of damp from the surrounding ground etc.
Any advice much appreciated.
Thanks
Also, as the outside wall is against the bank, would filling the cavity create more problems than it solves, ie ingress of damp from the surrounding ground etc.
Any advice much appreciated.
Thanks