• I reckon the walls I saw were at least double that (but it can get down to -40 or lower there). The houses I stayed in over there were incredibly warm with no drafts.

  • House gets knocked down and rebuilt before that becomes a problem.

    Isn't it basically

    • poured concrete basement
    • timber construction on top with big voids between the inner and outer
    • lots of insulation between the voids and on the exterior
    • oil / forced air heating - which is very dry
    • interior of the house is constantly heated, all surfaces warm, nothing to condensate against

    • house has a life expectancy of about 50 years before its knocked down and something even more cutting edge is plonked on top

  • Never noticed it to be a problem despite having a large wet room with an integrated sauna.

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