I'm currently planning to build a 150m2 bungalow.
I was considering block and a 6" timber frame with high insulation as a construction method.
However I looked into Insulated Concrete Formwork (ICF), and I'm wondering whether it is as good as it looks.
If I build with ICF, would I need to install mechanical ventilation and heat recovery (MVHR) system due to level of airtightness?
What's the best heating system for an ICF build?