- Priming layer (oxidised bitumen, solvents and resins based primer, applied by brush or spraying in quantity of ~250 g/sqm)
- Vapour barrier with NOVABIT 3 mm membrane (NOVABIT 4 mm orNOVALL-I 3 mm for special situations), fully bonded on the perimeter and verticals up to 10 cm above the level of the thermal insulation, and semi-bonded on the sloped area;
- Thermal insulation layer (when possible, spot welded by torching directly on the vapour barrier, or bonded with oxidised bitumen).
- Single layer waterproofing system, made of NOVATECNO MINERAL 4.5 Kg membrane, torch applied, fully bonded on the thermal insulation;
- Tiles, directly laid on the membrane, with cementitious mortar strips
In case of special situations characterised by significant thermal cycles, elastomeric membranes must be used: ISOGUM-P MINERAL 4.5 kg