A type of door that is designed to provide a high level of security, energy efficiency, and ventilation. It features a single-hinged or multi-hinged sash that opens outward, typically with a crank handle.

Key Features:

• Made of durable aluminum materials that are resistant to corrosion and weathering
• Offers a high level of security through reinforced frames and hinges
• Can be designed with various sash configurations, including fixed, operable, and combination options
• Provides excellent weather-tightness and wind resistance
• Available in a range of sizes and shapes to accommodate different architectural styles and design requirements
• Often used as a entrance door, room divider, or patio door

Benefits:

• Provides excellent ventilation and natural light
• Offers energy efficiency through reduced air leakage and improved insulation
• Durable and low maintenance requirements reduce costs and downtime
• Available in a range of colors and finishes to match building design and architectural intent

Overall, aluminum casement  doors are popular choices for building exterior envelopes due to their durability, energy efficiency, and versatility.