A year ago I had my floor insulated for 4000 euros...

A year ago I had my floor insulated for 4000 euros. The boys were in a hurry, one of them had a dental appointment and had to leave earlier.

In the meantime, in the crawl space, the pieces are completely detached from the floor, and I have saved 0 euros on the energy bill. (nowadays this can be measured with the different apps)