“Thermohouse (ICF) – Advantages over other mediums:
1. Easy airtightness, no membranes, concrete does the sealing.
2. Any cantilevers or wide spans are part of the walls. No RSJs are required.
3. Windows are easily [made airtight] with the rebated ICF blocks.
4. Perfect for incorporating a warm roof.
5. Walls not affected by rain or frost [during build].
6. ICF blocks used to D.P.M. level ensures no cold bridging.”