Veröffentlicht am 29. November 201326. Mai 2018 von Gerhard LinkKey Considerations – glazing, threshold and building fabric overlap I recomend following link: It is not only the door system which requires enhanced functions in order to cope with a potential terrorist incident for more info on door system alterations). The glazing, threshold and building fabric are also key considerations in the development of enhanced security and bomb blast doors….. Soures: Allegion
