145mm Isotherm Insulation
Isotherm has definitely made a difference. The winter temperature inside never dropped below 10°C at night with no heating. If I used the wood burning fireplace (7 kW Franco Belge) within in an hour the temperature goes up to 18°C or 20°C from 12°C or 14°C. We are now approaching summer, yesterday was 33°C outside and inside was 24°C. The house is definitely warmer and cooler. The installation was efficiently done, on time and in the time frame stated.