In America,double hung vinyl windows is popular for home and commercial buildings to save space. Offering superior ventilation control compared to single hung windows, PVC double hung windows allow both upper and lower sashes to operate independently. The tilt-in design simplifies glass cleaning and maintenance. PVC frames deliver outstanding durability, resisting moisture, insects, and extreme weather conditions. With excellent insulation performance, these windows improve energy efficiency while requiring far less upkeep than traditional wooden window systems. series: 82 series PVC color : white opening style: Double Hung Glass: 3mm+12A+3mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.21 Visible Transmittance: 0.41 Air Leakage: 0.15

KDSBUILDING supply factory direct sale upvc sliding window 016. PVC sliding windows provide an efficient solution where space optimization is essential. The sliding system eliminates swing clearance while maintaining good ventilation. High-quality PVC profiles ensure energy savings, sound insulation, and durability, making these windows a popular choice for apartments, hotels, and commercial buildings. series: 60 series PVC opening style: Top sliding and bottom fixed Color: White Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

KDSBUILDING supply factory direct sale upvc sliding window 003. Designed for long-term reliability, PVC sliding windows offer stable performance and modern appearance. The multi-track design allows flexible opening options, while the insulated PVC profiles enhance energy efficiency. These windows are ideal for apartments, offices, and large-scale housing projects. series: 60 series PVC opening style:  sliding  Color: white Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23 Visible Transmittance :  0.41 Air tightness :  0.15 Nail Fin Design  :  NO Window Screen :  With removable screen Grille design : Yes

KDSBUILDING supply factory direct sale upvc casement window 11. PVC casement windows are engineered for comfort and durability. The casement structure ensures tight closure and excellent sealing, reducing heat loss and noise. The PVC frame is resistant to rust and decay, requiring minimal maintenance, and is ideal for homes, offices, and commercial buildings. series: 60 series PVC opening style:  casement Color: white Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23 Visible Transmittance :  0.41 Air tightness :  0.15 Nail Fin Design  :  NO Window Screen :  no Grille design : no

The function of pvc door window is good insulation,watertight,wind resistance and anti-thief. With reliable performance and classic design, PVC casement windows are a popular choice for residential projects. The hinged opening provides easy operation and ventilation, while insulated PVC profiles reduce heat transfer and noise. They are durable, cost-effective, and simple to maintain. series: 60 series PVC opening style:  casement and top fixed Color: white Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23 Visible Transmittance :  0.41 Air tightness :  0.15 Nail Fin Design  :  NO Window Screen :  no Grille design : no