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Double-Hung Windows
SUNGYE
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Parameter | Specification |
|---|---|
Frame material | Anodized aluminum alloy |
Frame wall thickness | 1.8 mm |
Frame width | 60.5 mm |
Sash width | 80 mm |
Sash width range | 450 mm – 850 mm |
Sash height range | Up to 1450 mm |
Maximum sash weight | 70 kg |
Glass configuration | 5G + 18A + 5G |
Thermal break material | PA66 GF25 |
Hardware brand | SUNGYE |
Balance system | Constant Force Stainless Steel |
The window frame is constructed from anodized aluminum profiles with a 1.8 mm wall thickness. PA66 GF25 thermal breaks are integrated within the 60.5 mm frame profile to create a thermal barrier between interior and exterior aluminum surfaces. The sash profile measures 80 mm in width, designed to accommodate insulated glass units.
The standard glass configuration consists of 5 mm glass + 18 mm air space + 5 mm glass (5G + 18A + 5G). The air cavity contains argon gas fill. Low-E coating is applied to the glass surface to reduce solar heat transfer. A stainless steel constant force balance system supports vertical sash operation. Both upper and lower sashes tilt inward for access to the exterior glass surface.
Performance Metric | Value | Test Standard |
|---|---|---|
U-Factor (U.S. / 1-Pane equivalent) | 0.26 | NFRC 100 |
Solar Heat Gain Coefficient (SHGC) | 0.32 | NFRC 200 |
Visible Transmittance (VT) | 0.53 | NFRC 200 |
Condensation Resistance (CR) | 70 | NFRC 500 |
Air Infiltration | 0.012 cfm/ft⊃2; | ASTM E283 |
The U-Factor of 0.26 indicates the rate of heat transfer through the window assembly. A lower U-Factor corresponds to reduced heat loss in cold conditions and reduced heat gain in warm conditions. The SHGC value of 0.32 represents the fraction of solar radiation admitted through the window, both directly transmitted and absorbed and subsequently released inward.
Windows with these performance levels are suitable for use in buildings targeting reduced HVAC energy consumption. The tilt-in sash design allows both sashes to be opened at different positions, enabling cross-ventilation and airflow control within occupied spaces.
SUNGYE offers a range of customization options for industrial applications and enterprise customers with project-specific requirements.
Glass options: Glass thickness can be specified from 4 mm to 8 mm per pane. Additional glass options include laminated glass, tempered glass, and triple-glaze configurations for projects requiring enhanced acoustic or thermal performance.
Frame finishes: Anodized finishes are available in multiple color options to match project design specifications. Custom powder-coat finishes can be arranged for volume orders.
Hardware options: Hardware finishes include standard options as well as brass and stainless steel finishes upon request. Locking mechanisms and handle styles can be selected to align with project aesthetic requirements.
Order details: Minimum order quantities and production lead times vary based on configuration complexity and order volume. Standard production cycles are determined at the time of quotation based on project specifications.
Commercial office buildings: Double-hung windows are installed in mid-rise and high-rise office structures where natural ventilation and daylight access are design objectives. The tilt-in sash design facilitates exterior glass maintenance from inside the building, reducing the need for external access equipment during routine cleaning.
Multi-unit residential developments: Apartment buildings, condominium projects, and student housing developments incorporate these windows as part of unit envelope systems. Independent operation of upper and lower sashes allows residents to regulate ventilation according to individual preference.
Hospitality and accommodation projects: Hotels and extended-stay properties use double-hung windows in guest room applications where operable windows are specified as part of the building design. The stainless steel balance system supports repeated daily operation over the building's service life.
Production lead time depends on order volume and the level of customization specified. Standard orders follow a production schedule determined at the time of order confirmation. Factory capacity supports volume orders for large-scale development projects.
Yes, multiple frame finish options and hardware finishes are available. Clients may select from standard color options or request custom finishes to match project design requirements. Custom finish options are subject to minimum order quantities.
Yes, clients are welcome to visit the SUNGYE production facility and showroom located in Foshan, China. Scheduled visits allow buyers to review production processes, quality control procedures, and product samples before placing volume orders.
SUNGYE is a window manufacturer based in Foshan, China, established in 1997. The company produces aluminum window and door systems for distribution to international markets. Products are manufactured in a facility equipped with production machinery for aluminum profile fabrication, glass processing, and assembly.
The product range includes casement windows, sliding windows, double-hung windows, and corresponding door systems. Engineering staff provide technical support for project specification and dimensional verification. After-sales support is available for shipped orders, including replacement parts and technical guidance.
