Marassi Residences will consist of two 11-storey residential towers. Each elegant or modern unit will offer contemporary high quality finishes, with its own balcony. Air infiltration -, water penetration – and structural tests have been carried out for the façade contractor Aluminium Services at Al Tuttaim Exova in Dubai. These tests were carried out for Aluminium Services and were in accordance to ASTM E283, E331, E330 and AAMA 501.1. As a result of the high demands regarding the overall U value the doors, sliding doors and – windows, folding doors were executed according the latest thermally broken (tb) systems of EFP.