Retrofit safety system for house doors has a metal frame, drill resistant metal frame, cross brackets, acoustic protection and door panel dividing door into three zone whereby foam is filled as acoustic protection and for heat insulation

摘要

The retrofit safety system for house entry door has protection having a metal frame (1), a drill resistant metal plate (2), two cross brackets (4) fitted in the frame, acoustic protection (3) and a door panel (5) dividing the door into three zones. These are press fitted, one over the other, on one side of metal frame mounted with rubber profiles. Foam is filled for acoustic protection and heat insulation.