The casement + fixed window combination offers the ideal balance between ventilation, natural light, and energy efficiency. The operable casement sash opens outward on precision hinges, providing excellent airflow and easy cleaning from inside the room. Meanwhile, the fixed panel maximizes unobstructed views while maintaining exceptional thermal insulation. Both sections are built with high-quality aluminum or , depending on project requirements, and paired with low-E double glazing to reduce heat loss and improve comfort. Multi-point locking ensures a tight seal against air and water infiltration, making this window highly suitable for energy-efficient buildings. series: 100 series thermal break glazing: 5mm+9A+5mm clear tempered U factor: lower than 0.3 SHGC: lower than 0.23

The PVC Fixed Window from Xiamen KDSBuilding is designed to deliver maximum light, energy efficiency, and modern aesthetics. With no operable parts, this window provides a large, clear view of the outdoors while maintaining superior insulation performance. Crafted from high-quality PVC profiles, it resists corrosion, fading, and deformation, making it ideal for long-term use in various climates.  series: 60 series PVC opening style: fixed(non-opening) Glass: 5mm +9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.21