One frame type for double hung windows:6063-T5 aluminum profile,Thermal Break.
Designed for comfort and efficiency, aluminum double hung windows provide excellent ventilation and natural light. When paired with double or insulated glazing, they help improve thermal and sound insulation while maintaining the strength of aluminum profiles.
series: 83 series thermal break
opening style: Double Hung and Inward Tilt
Glass: 5mm+9A+5mm clear tempered glass
Color: white
Certification: NFRC, AAMA, CE, TITLE 24, AS2047
U-Factor ≤ 0.3
SHGC ≤ 0.23
Item NO.:
KDS-W-A-DH-B007Payment:
L/C, T/TProduct Origin:
ChinaColor:
CustomizedShipping Port:
XIAMENLead Time:
25-35 DAYS
| Technical Specification – Aluminum Windows & Doors | ||
| Profile System | ||
| Classify | Technical Parameter | Other Options |
| Material | 6063-T5 Aluminum Alloy | 6063-T6 |
| Structure | Thermal break aluminum profile | Non-thermal break |
| Profile thickness | 1.6 mm | 1.4 mm, 1.8 mm, 2.0 mm |
| Finish | Powder coating | PVDF coating, Anodizing, Wood grain transfer |
| Color | White / Black / Grey | Custom RAL colors |
| Glazing System | ||
| Glass type | 5mm + 12A + 5mm Double Glazing | Single glass, Triple glazing |
| Glass color | Clear | Tinted, Blue, Green, Grey |
| Gas filling | Argon | Air, Krypton |
| Special function | Tempered glass | Low-E, Laminated, Soundproof, Security glass |
| Hardware & Operation | ||
| Hardware brand | Chinese top brand | Roto, Siegenia, Kinlong |
| Main hardware | Lock, handle, hinge, roller | Heavy-duty hardware set |
| Locking system | Multi-point locking system | Single point, Crescent lock |
| Operation | Sliding / Casement / Tilt & Turn/awning/single&double hung | Folding, Lift & Slide,fixed |
| Sealing | EPDM gasket | Silicone, PVC gasket |
| Performance Ratings | ||
| U-Factor | ≤ 0.35 | ≤ 0.28 with triple glass |
| SHGC | ≤ 0.25 | Low-E glass for better SHGC |
| Wind load | ≥ 3000 Pa | ≥ 4500 Pa |
| Water tightness | ≥ 450 Pa | ≥ 500 Pa |
| Air tightness | ≤ 0.5 m³/(m²·h) | ≤ 0.3 m³/(m²·h) |
| Manufacturing Service | ||
| Size range | Width: 500–3000 mm Height: 500–3000 mm | Customized size |
| Application | Residential & Commercial | High-rise, Villa, Apartment |
| Warranty | 5 Years | Excluding human damage |
| Certification | CE, NFRC, AS2047, TITLE 24, AAMA | ISO9001 |


Good processing performance: aluminum profiles can be processed into large size and complex section shape, and high dimensional accuracy, aluminum alloy glass and aluminum windows processing technology is relatively simple, easy to achieve modernization.
Strong corrosion resistance: aluminum alloy oxide layer does not fade, do not fall off, do not need to paint, easy maintenance, no maintenance.