I'm about to build a house again and this time I'm considering building with exterior walls and roof in foam plastic. This isn't new, but I've found a company that makes the walls in solid 250mm modules with milled studs. The U-value is around 0.21 and it's reasonably cheap compared to traditional methods. Now I just wonder if there is experience on the forum with this type of construction technique; there isn't much to read that I can find. Tips and advice are welcome, and if anyone has built with similar techniques, I'm more than interested in your experiences. Additionally, I'm wondering which type of heating source works best with this type of insulation?
Hoping for answers!
