Calibel is the board made up of rockwool and plasteboard. It is a single object and it is so easy and faster to workwith. Whenever you need a desired dimension of board you just can cut it as easily as you do for plasterboard.
This product is worthy as it has the fire resistance, sound resistance and thermal resistance. This has the thermal resistance of 2.35 m².K/W.
It just can be stick with the concrete using a adhesive plaster as in the picture below.
Using this kind of product instead of using plasterboard and glasswool lot of time can be saved and also the cost.