WINDOW ASSEMBLY OF EXTRUDED PLASTICS MATERIAL

摘要

WINDOW ASSEMBLY OF EXTRUDED PLASTICS MATERIAL of the Invention A rectangular window frame includes vertical jamb members rigidly connected by a head member and a sill member all formed from extrusions of rigid plastics material or vinyl. The jamb members include outer portions integrally connected to inner portions, and the outer portions of the jamb members have welded mitered corner joints with the sill member and the head member. The inner portions of the jamb members have right angle end surfaces which abut the head and sill members to cover internal flash at the corner joints. The sill member has a sloping top wall which welds to internal walls of the jamb members, and the jamb and head members have inwardly projecting flanges which engage one side of an insulated glass unit retained by extruded glazing beads inserted into grooves within the frame members and a cross rail at the middle of the frame. A lower durometer or semi-rigid integral nailing flange projects outwardly from a peripheral recess formed within the frame.