Commercial aluminum doors and windows are made of high-quality materials, combine beauty and usefulness. In the dark days of winter, these high-performance systems feature immaculate craftsmanship to give the most superb thermal properties. When noise is a problem and safety must be considered, the windows and doors guarantee maximum protection in your air-conditioned private office. Three major functions are served including illumination, traffic guidance and permeation control at different levels for different economic uses--from hotel lobbies to complex industrial plant areas. The technical standards are equally rigorous: multi-point locking systems that log the frames for a guaranteed energy efficiency; frames with thermal break applied to keep out cold air in winter & hot in summer Applications range from office buildings and retail spaces to educational institutions and hospitals, where both the look of the doors and windows as well as their performance characteristics are important.