Installing thermal insulation between the rafters only is a construction workmanship error in the Polish climate conditions. Given the weather conditions in Poland, hybrid insulation systems are the best where the in-rafter thermal insulation is installed with an under or over the rafter system. The under the rafter variant can reduce the roof overall thickness, while the over the rafter variant saves the attic space.
You will need the following to install the Thermano panels on your pitched roof:
You can order your tape with the Thermano panels from Balex Metal.
Trim the Thermano panels with a small dimensional excess to the size that will match the rafter spacing.
A panel trimming size is recommended that will leave a small gap to be filled with low pressure foam.
Once the foam has cured, trim off the excess and seal the joint between the Thermano panel and the rafter with the aluminium sealing tape.