Additional glazing e.g. for old and new buildings, directly attached to main window by wings made from transparent material with guide walls limiting movement and for existing buildings glazing

摘要

The glazing is directly attached to a main window by wings made from transparent material with guide walls limiting the movement. For existing buildings the glazing can be attached by special loops which can be inserted into drilled holes in a wall. The combined windows can be adjustably combined during opening for allowing air to flow into the building.