Until the late 1940’s, the materials of choice for window frames was steel or wood. Later, aluminum, vinyl and clad wood came on the scene to displace those venerable materials. Steel windows became obsolete because aluminum offered greater versatility in cross-sectional shape due to the extrusion process.
An Interview with Historic Mike Jackson
Mark Meshulam is an window consultant and glass consultant for window replacement & renovation. Mike Jackson, FAIA, is the Chief Architect of the Illinois Historic Preservation Services Division of the Illinois Historic Preservation Agency (IHPA). He oversees the evaluation of changes to historic buildings when regulatory and benefit programs are involved. He is also a visiting professor of architecture at the University of Illinois…