Needed to reject a weekend with our walking friends. The floor insulation was urgent because the floor heating and the chape was planned for next week. The insulation is a resol foam, plates of 10 cm in 2 layers, totaling 20 cm insulation.
Pressure resistant resol foam is somewhat better for the environment than PUR/PIR. It is classified as 2a according to NIBE.
As it as all very urgent, we asked some help from Dirk M and Geert D. Luckily, without them I would never got the time to fix everything before Monday morning !