RESTORING casement WINDOWS

Frank Lloyd Wright was fond of using wood casement windows in Prairie School houses, including the 1916 Ross–Eifler House, in Glencoe, Illinois.

“A steel window provides the most light per square foot of any window made; plus, without wood, they are fireproof and strong.”
—John Seekircher, “Repairing Wright,” OHJ June 2002

that break the plane of the house, starting with the incursion of mosquitoes, gnats, and flies and culminating with rain (even snow!) that blows inside. A casement window can be damaged by the force of water or wind warping or knocking it out of alignment. Once a casement is warped even slightly, it may not close securely, leaving the house vulnerable to leaks and drafts. Whether the