Step 1
Installation of one layer of Bituminous waterproofing membrane 4mm P200 Special Polyester mineral white, plastic roof ventilators and asphaltic mastic to all sensitive points.
Step 2
Installation of 2 layers of white polyurethane paint.
Step 3
Installation of protective membrane.
Step 4
Installation of polystyrene 5cm and fabric.
Step 5
Paving (40 cm x 40 cm)