Engineered Architectural Openings & Custom Systems
Explore our flagship export series manufactured with precision 6063-T5/T6 aluminum profiles, high-capacity balances, and certified thermal insulation.
Engineering Whitepaper: Structural & Thermal Dynamics of OEM Aluminium Single Hung Windows
In modern architectural fenestration, Aluminium Single Hung Windows remain a primary structural choice for multi-family residential towers, commercial developments, and luxury villa projects. Unlike double-hung variants where both sashes move, a single hung window features a fixed top sash and a vertically operating bottom sash. This structural configuration provides superior long-term air tightness, simplified water drainage, and higher structural load performance under extreme wind pressures.
As a premier OEM/ODM manufacturer headquartered in Foshan, Guangdong—China's global capital for high-end aluminum processing—our engineering team utilizes primary 6063-T5 and 6063-T6 architectural grade aluminum alloys. By integrating high-density Technoform PA66 GF25 polyamide thermal break strips, our custom single hung window assemblies achieve U-factors as low as 1.2 W/m²K, satisfying rigorous thermal envelope mandates across North America, Europe, Australia, and coastal tropical regions.
Structural Alloy & Wall Thickness
Extruded profile wall thickness ranges from 1.4mm to 2.2mm, meeting AAMA/WDMA/CSA 101/I.S.2/A440 standards. T6 heat-treatment yields an ultimate tensile strength exceeding 205 MPa, preventing sash deflection in high-rise coastal installations under design pressures reaching DP80.
Precision Counterbalance Balances
Equipped with commercial-grade constant force spring balances, block-and-tackle balances, or heavy-duty stainless steel spiral balances calibrated precisely to the weight of double- or triple-pane IGUs. Effortless single-finger vertical sash movement guaranteed up to 50,000 cycles.
Advanced EPDM Weather-Stripping
Triple-sealed perimeter gasket systems featuring continuous vulcanized EPDM seals combined with finned brush weather-strips eliminate micro-gaps. Delivers air infiltration resistance lower than 0.1 cfm/ft² and water penetration resistance up to 700 Pa.
Engineering Benchmark Specifications
| Performance Parameter | Standard Configuration | High-Performance Thermal Option | Testing / Certification Standard |
|---|---|---|---|
| Frame Profile Depth | 60mm - 80mm Depth | 100mm - 120mm Thermal Break Depth | GB/T 8478 / AAMA 101 |
| Thermal Transmittance (U-Value) | 2.2 - 2.8 W/m²K | 1.2 - 1.6 W/m²K (Low-E + Argon) | NFRC 100 / EN ISO 10077 |
| Acoustic Insulation (STC / OITC) | STC 32 dB (Double Glazed) | STC 42+ dB (Laminated Acoustic Glass) | ASTM E90 / ISO 140-3 |
| Wind Pressure Resistance | 3.0 kPa (DP45) | 5.5 kPa (DP80 High-Velocity Hurricane) | AS 2047 / ASTM E330 |
| Air Infiltration Rate | < 0.15 cfm/ft² at 1.57 psf | < 0.05 cfm/ft² (Airtight Commercial Spec) | ASTM E283 / AS 4420.2 |
| Surface Coating Durability | Standard Powder Coating (AAMA 2603) | PVDF Fluorocarbon / AkzoNobel (AAMA 2605) | Qualicoat Class 2 / Class 3 |
Future Procurement Trends in Commercial & Residential Fenestration
As international energy codes become increasingly stringent (such as Europe's EPBD and North America's IECC 2024 mandates), global developers and fenestration importers are re-evaluating their supply chain strategies. Sourcing custom OEM aluminium single hung windows directly from accredited manufacturers offers massive cost efficiencies while meeting strict carbon reduction targets.
1. Decarbonization & Low Embodied Carbon Aluminum
Future procurement demands full transparency into the carbon footprint of raw materials. Our manufacturing processes incorporate green hydro-powered aluminum extrusions and recycled billet stocks, reducing embodied carbon dioxide equivalent (eCO2) by over 40% compared to traditional coal-smelted aluminum.
2. Integration of Smart Glass & Automated Controls
Architects are increasingly specifying single hung window units integrated with Electrochromic (EC) smart tinting glass and concealed motorized vertical actuators. This allows real-time Solar Heat Gain Coefficient (SHGC) adjustments via Building Management Systems (BMS) or smart home IoT hubs.
3. Modular Pre-Glazed Assembly for Rapid Jobsite Installation
On-site labor shortages in North America, Australia, and Europe have accelerated demand for factory-assembled, pre-glazed single hung window units equipped with integrated nail-fins, sub-frames, and pre-applied perimeter flashing membranes to reduce jobsite labor hours by up to 60%.
Factory Advantage: Guangdong Dejiyoupin Doors and Windows Co., Ltd.
Operating under the flagship brand DERCHI, our enterprise represents the pinnacle of Chinese high-end fenestration engineering. Headquartered in Foshan, Guangdong, our facility serves as a complete one-stop production ecosystem covering aluminum extrusion, precision CNC machining, glass lamination/insulation, powder coating, and automated assembly.
- Massive Scale: 180,000 square meter standardized production base staffed by over 600 skilled technicians and engineers.
- Certified Excellence: Certified compliant with CE, ISO 9001, AS 2047, and UL fire-rated standards, backed by 8 international certifications and 30+ patents.
- 100% OEM/ODM Customization: In-house CAD/BIM drawing engineering teams providing free shop drawings tailored to architectural schedule demands.
- Global Trade Coverage: Direct FOB/CIF export logistics to major sea ports across North America, Europe, Australia, the Middle East, and South Asia.
Integrated Production Lines
Eliminate middleman markups by sourcing directly from our vertically integrated Foshan manufacturing hub.
Rigorous QC & Testing
Every single hung window undergoes air/water tightness testing, sash weight calibration, and hardware endurance checks.
Engineering & BIM Support
Our fluent English-speaking engineering team transforms architectural conceptual sketches into approved shop drawings.
Frequently Asked Questions: B2B Sourcing & Technical Specifications
In-depth technical answers for fenestration buyers, general contractors, and trade importers.
What are the key structural benefits of selecting single hung windows over double hung models for commercial projects? +
Single hung windows feature a permanently fixed top sash integrated directly into the outer frame, leaving only the bottom sash active. This design offers two major technical advantages for commercial and multi-family projects: 1) Enhanced Weather Tightness: Because the upper perimeter has no moving dynamic joints, air infiltration and water leakage risk under heavy wind pressures (such as hurricane forces) are reduced significantly compared to double-hung windows. 2) Long-Term Structural Stability: The rigid upper frame configuration allows for wider structural spans without sash sagging or frame twist, ensuring maintenance-free performance over decades.
Can DERCHI manufacture custom single hung aluminum windows to meet local regional building codes (e.g., North American AAMA, Australian AS2047, or European CE)? +
Yes. Every order is fully customized according to your destination market's regulatory standards. For Australia, our products are engineered and tested to AS 2047 / AS 1288 standards. For North America, we utilize extrusions, glass IGUs, and hardware that conform to AAMA/WDMA/CSA 101/I.S.2/A440 and NFRC thermal ratings. We supply comprehensive factory test reports, mill certificates, and physical compliance documents with every commercial shipment.
What glass configurations and coating options are available for OEM single hung window manufacturing? +
We provide a vast range of glass insulated unit (IGU) options:
• Double & Triple Glazing: Typical builds include 5mm + 12Ar + 5mm or 6mm + 16Ar + 6mm tempered glass.
• Low-E Coatings: Soft-coat Low-E (e.g., Solarban 60/70 equivalent) applied on surface #2 or #3 to minimize Solar Heat Gain (SHGC) while maximizing visible light transmittance.
• Acoustic & Security Lamination: PVB or SGP (SentryGlas) interlayers for hurricane impact resistance and sound reduction up to STC 45.
• Warm-Edge Spacers: Technoform or stainless steel warm-edge spacer bars filled with molecular sieve desiccant to prevent internal fogging.
What custom surface finishes and anodizing options does DERCHI offer? +
Our automated surface treatment facilities offer:
1. Powder Coating (AAMA 2604 / AAMA 2605): AkzoNobel or PPG fluorocarbon coatings providing exceptional salt-spray, UV, and chalk resistance (20+ year warranty).
2. Anodizing: Class I (18+ microns) and Class II (10+ microns) clear, bronze, champagne, or black anodized finishes for coastal environments.
3. Sublimated Wood-Grain: High-definition thermal transfer wood finishes offering the organic aesthetic of natural timber without warping, rotting, or termite vulnerability.
What information should I provide to receive an accurate factory-direct quotation? +
To receive a complete line-item quote from our engineering sales desk within 24 hours, please provide:
• Rough opening or finished frame dimensions (Width x Height).
• Architectural window elevation drawings or schedules.
• Specified profile thermal break requirement and aluminum wall thickness.
• Glass specification (monolithic, double Low-E IGU, laminated impact).
• Surface coating type and color code (RAL / Pantone).
• Quantity per window type, target delivery timeline, and destination sea port.
How does DERCHI ensure export packaging integrity for international ocean freight? +
Export fenestration products require rigorous multi-layer protection. Every window unit is wrapped in protective adhesive film, fitted with impact-resistant heavy foam corner guards, sealed in moisture-proof poly wrap, and packed inside fully enclosed fumigated plywood crates or steel-framed export A-frames. This guarantees zero frame deformation, glass breakage, or surface scratching during long-distance sea transit and container loading/unloading.
Ready to Partner with China's Premier Fenestration Manufacturer?
Request custom CAD shop drawings, physical material samples, and factory-direct wholesale estimates for your upcoming project window schedule.