Security screen system and assembly method

A method of assembling a screen system, the method comprising:

• providing a sheet of mesh and/or other infill material with a rectangular perimeter having four edges;
• applying an insulator to front and rear surfaces of the sheet of mesh and/or other infill material along each of the four edges of the rectangular perimeter;
• applying four inner sash members to overlie the insulator along each of the four edges, each inner sash member comprising two foldable legs configured to engage the insulator on a side of the insulator opposite the front and rear surfaces of the sheet of mesh and/or other infill material;
• sliding three outer sash members over three inner sash members along three edges, each outer sash member comprising a first sidewall and a second sidewall defining a channel therebetween for receiving a corresponding inner sash member, each outer sash member including engagement features for engagement with corresponding engagement features of the corresponding inner sash member;
• and
• exerting a pushing or pulling force to move a fourth outer sash member over a fourth inner sash member in a direction toward an interior of the sheet of the mesh and/or other infill material.