The dry system is the most compact. You will need 5 cm (2 in) of space: 2.5 cm (1 in) for the insulating slab and 2.5 cm for the Fermacell layer.
The dry system is the most compact. You will need 5 cm (2 in) of space: 2.5 cm (1 in) for the insulating slab and 2.5 cm for the Fermacell layer.