The 4000 series’ dual-sash construction — with interior and exterior panels — creates an insulating air space that helps keep your home warmer in the winter and cooler in the summer. Combined with a continuous thermal break and high-performance seals, it significantly reduces drafts and improves overall energy efficiency.
Built to handle the elements, the system is engineered to manage water and air pressure effectively. The internal cavity helps direct water away from the home while minimizing air movement inside the door, providing strong resistance against wind and water infiltration — even in demanding weather conditions. With precision-engineered joints for a tight, clean finish, the 4000 Series is built to last.
The 4000 Series Aluminum Thermal System is a high-performance, cost-effective sliding door solution engineered to meet the demanding structural and thermal requirements of high-rise condominium applications.
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Buildings using aluminum doors and windows can reduce energy consumption by up to 30%.
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Modern sliding aluminum doors can improve heat gain/loss through windows by 60% due to advanced thermal break technology.
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Aluminum can be recycled infinitely without losing its quality, strength, or value.
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