HOME ABOUT US MEMBER COMPANIES THE MANY REASONS TO USE STEEL WINDOWS AND DOORS SPECIFICATIONS / INSTALLATION PRODUCTS REPLACEMENT VS. RESTORATION RECYCLABILITY STATEMENT FAQ's CONTACT US     NARROW SIGHTLINES STRENGTH VERSATILITY LIFE CYCLE HISTORIC REPLACEMENT FACTORY FINISHES INSTALLATION CLASSIC HARDWARE THERMAL PERFORMANCE FIRE RATING SECURITY PRODUCTS SPECIAL APPLICATIONS       LIFE CYCLE. Because steel windows and doors are inherently more durable than almost any alternative material used in construction, their life cycle is unsurpassed. In Europe, classic architectural examples over a century old contain original steel windows and doors. In the U.S., steel windows, which remain highly functional after three generations, have been replaced in certain cases only to make use of new glazing, finishing or ventilator technology. So steel windows and deterioration are essentially contradictions in terms.   © The Steel Window Institute (2006) Contents are the property of the Steel Window Institute, its members or others who have licensed the information. All rights reserved.