Removable Roof Insulation - Ideas

This is quite an ambitious task, this renovation. This PUR rigid foam is already a good option to make the roof watertight. Also, the fact that it is waterproof is a positive aspect. This insulation material also has a long service life.

Also, thank you for your note here. I did not know that this PUR rigid foam has such good properties. I also want to insulate our roof from the inside and will do it with this PUR rigid foam.