The video documentation shows how a time-saving, convenient and energy-efficient installation and sealing of windows in the external thermal insulation composite system could be realised in the passive house project "new WALLDORF LOFTS" with the IN FRONT OF WALL INSTALLATION SYSTEM ISO-TOP WINFRAMER "TYPE 1" and the multifunctional sealing tape ISO-BLOCO ONE. For energy reasons, the installation position of the window elements was moved forward to the outside, into the area of the thermal insulation. The ISO-TOP WINFRAMER "TYPE 1" in front of wall installation system, which has been comprehensively tested and approved by ift Rosenheim, was therefore used for the thermal insulation-optimised window installation of the premium condominiums. See the advantages of ISO-TOP WINFRAMER "TYPE 1": https://www.iso-chemie.eu/en/sealing