Random question on insulation - our extension was built with block and brick. I remember at the time they used a foil roll insulation as opposed to Kingspan "boards".
The extension part of the house is always colder in winter rather than the main area. I just dug out old photos of before, during and after build and it looks like the foil insulation was installed between the layer of block and the layer of facing brick?
I am thinking that surely can't be right? You would want your insulation to surely be on the internal wall to prevent heat escaping from the room?
Sadly I can't find any specific note of the exact type of insulation that was used?
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