Another approach is to use the 1/3 to 2/3 method mentioned above—that is, to install a vapor retarder on the inside of the existing wall (if there isn't one there already) and add insulation and support structure to the inside.
Drugačiji pristup je korištenje prethodno spomenute metode 1/3 do 2/3, tj. instalirati usporivač pare s unutarnje strane postojećeg zida (ako se tamo već ne nalazi) i dodati izolaciju te pojačati strukturu prema unutra.