• Disagree. Least likely to be problems doing EWI on a solid wall. With cavity there's a lot that can go wrong in terms of moisture and I think much of what has already been done has caused a lot of damage to the existing buildings. Although it's also cowboy retrofit territory (see also spray foam in the loft, snake oil rising damp solutions).

  • spray foam in the loft

    My mother (bless her boomer cotton socks), had the loft in her Georgian house sprayed.

    When she came to sell, only cash buyers would be entertained, as nobody would sell a mortgage on a property that age with that insulation.

About