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       STRENGTH. Steel windows and doors are stronger than any alternative material. By direct comparison, they are three times stronger than aluminum. This advantage permits the use of immense glass lights, often in spectacular openings, while maintaining narrow sightlines. Hardware fastened to steel windows and doors will not pull out, and ventilators do not distort or rack with age.   © 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.