The Exposed roof BROOF (T1) with synthetic waterproof membrane in FPO/TPO is a waterproofing system composed of a Mapeplan T M 18 BROOF (T1) synthetic membrane, mechanically fixed through induction points. The system includes a Velo Vetro DH 120 TL glass fiber separation layer, a Polydren PP non-woven polypropylene geotextile, and a cementitious or reinforced concrete structural substrate with slope. This configuration ensures high durability, weather resistance, and effective protection against water infiltration, meeting the BROOF (T1) fire classification requirements for exposed roofs.