Engineered to comply with stringent global standards including AS2047, NFRC, CE, and ISO9001. Each product features heavy-wall 6063-T5 aluminum extrusions, advanced polyamide thermal barriers, and dual-sealed insulated glass units (IGU).
Acoustic Rated
NFRC Certified
AS 1288 & 2047
Custom Carving
Solar Control
Minimalist Line
Impact & Wind N6
Passive Standard
Evaluating fenestration envelopes requires an in-depth understanding of thermodynamics, structural elasticity, and metallurgical purity. Discover how our export-oriented OEM manufacturing delivers verified performance.
We utilize primary 6063-T5 and 6063-T6 virgin aluminum billets exclusively. With web wall thicknesses exceeding 2.0mm on structural sashes and frames, our profiles withstand severe mechanical stresses while maintaining dimensional tolerances within ±0.15mm across large architectural spans.
Eliminating the thermal bypass characteristic of raw metals, our systems feature 24mm to 34mm fiberglass-reinforced polyamide insulating strips (PA66 GF25). These maintain high transverse tensile strength (>70 N/mm) to prevent structural deflection during radical interior-to-exterior thermal differentials.
Our insulated glass units feature double-barrier perimeter sealing using primary polyisobutylene (PIB) for superior vapor impermeability, complemented by secondary structural silicone. Standard cavities are filled with 90%+ concentration Argon gas to drastically reduce conductive and convective U-factor metrics.
| Performance Metric | Standard Non-Thermal Window | Commercial Grade Double Glazed | DERCHI Custom OEM Architectural | International Standard Baseline |
|---|---|---|---|---|
| Overall U-Factor (W/m²·K) | 5.8 – 6.2 | 2.8 – 3.4 | 1.3 – 1.8 | NFRC 100 / EN ISO 10077-1 |
| Solar Heat Gain (SHGC) | 0.72 – 0.82 | 0.45 – 0.55 | 0.22 – 0.38 (Configurable) | NFRC 200 / ISO 9050 |
| Sound Transmission (STC / Rw) | Rw 24 – 26 dB | Rw 30 – 32 dB | Rw 38 – 44 dB | ASTM E413 / ISO 717-1 |
| Air Infiltration Rate | > 2.5 m³/(h·m) | 1.2 – 1.5 m³/(h·m) | < 0.3 m³/(h·m) (Grade 8) | ASTM E283 / AS 2047 |
| Cyclonic Wind Loading | 1200 Pa (Serviceability) | 2500 Pa (Design Pressure) | Up to 4500 Pa (N6 Level) | AS 4055 / ASTM E330 |
Global real estate developers, commercial contractors, and facade consultants are adjusting their procurement protocols. Sourcing decisions are moving beyond basic cost metrics toward lifecycle environmental footprint, modular integration, and verified third-party conformance.
With stringent carbon border adjustment mechanisms (CBAM) taking effect across Europe and the Americas, project tenders now scrutinize embodied carbon. Procuring firms demand billets produced via renewable hydropower with full Environmental Product Declarations (EPD), ensuring circular recyclability without structural fatigue.
Soaring on-site labor overheads in North America, Australia, and Western Europe are driving a shift toward factory-glazed, unitized window and sub-frame assemblies. Sourcing departments prioritize OEM exporters capable of supplying fully integrated sub-sills, pre-flashed sub-heads, and pre-adjusted European hardware ready for rapid crane placement.
Importers no longer accept generic factory warranties. Purchasing orders require test certifications directly mapped to local building codes: AS2047 / AS1288 in Oceania, NFRC / AAMA in the USA, and CE Marking / UKCA across Europe. Full traceability of glass heat-strengthening and PVB/SGP interlayers is now non-negotiable.
Tier-1 builders are bypassing middlemen trading companies to establish direct engineering connections with integrated Chinese extrusion and assembly plants. This direct OEM engagement cuts markups by 20–35%, guarantees engineering accountability via BIM/CAD integration, and speeds up production turnaround times.
Architectural requirements continue to push boundaries: larger unobstructed glass openings, narrower structural sightlines, superior energy management, and integration with building intelligence systems.
Conventional window profiles featured face widths exceeding 85mm. Next-generation architectural systems leverage structurally bonded glass panes to transfer loads directly through the glass composite, decreasing visible frame mullions down to 18mm–25mm while meeting wind load design criteria for mid- and high-rise applications.
Modern double glazed units are incorporating advanced double- and triple-silver vacuum sputtering coatings. These micro-coatings reflect long-wave infrared radiation while transmitting up to 74% visible light, balancing daylighting needs with low solar heat coefficients in intense tropical and subtropical climates.
Modern facade design demands uncompromised aesthetics. Contemporary casements and sliding doors integrate fully hidden European multi-point lock bodies, flush floor tracks with internal sub-sill drainage, and low-voltage concealed motors compatible with smart BMS automation architectures.
Located in the core manufacturing corridor of Foshan, Guangdong, DERCHI has spent over 25 years establishing an integrated fenestration manufacturing base recognized among China's top window and door brands.
From raw aluminum ingot casting, advanced CNC profile extrusion, fluorocarbon/powder coating, and automated IGU assembly to final hardware installation, our factory maintains rigorous in-house quality control at every phase of production.
Our in-house fenestration testing facility conducts ongoing structural load evaluations, air infiltration checks, and cyclical water-tightness tests up to hurricane-force pressures (AS2047 N6 compliant), ensuring hassle-free consultant approvals and on-site sign-offs.
Export cargo undergoes a multi-layer packaging protocol: protective low-tack film on profiles, corner shock-absorbers, moisture desiccant bags, heat-shrink wrap, and reinforced fumigated non-wood crates engineered to survive international maritime routes.
Clear answers to frequent technical, logistical, and structural inquiries from facade engineers, general contractors, and overseas importers.
Our thermal break window systems integrate high-grade PA66GF25 polyamide insulating bars that separate exterior and interior aluminum profiles. Combined with dual-sealed insulated glass, warm-edge spacers, and Argon gas fill, the internal surface temperature of the frame remains well above the dew point of conditioned indoor air, preventing moisture condensation and microbial growth even during sub-zero exterior temperatures.
Yes. Every order is produced to custom specifications. Our in-house engineering team works directly from your architectural schedules, elevation plans, and BIM/CAD drawings. We configure bespoke profile depths, customized structural mullions, tailored glass makeups (including acoustic PVB laminates and tinted Low-E options), and custom architectural finishes (such as Qualicoat Class 2 powder coating and 25-micron AAMA 2605 PVDF finishes).
We supply authentic, verifiable testing reports tailored to your destination market. For the Australian and New Zealand markets, our products hold AS2047, AS1288, and AS4284 test certificates from accredited laboratories. For the USA and Canada, we offer NFRC thermal performance ratings and AAMA structural reports. In addition, our manufacturing system is ISO9001 certified, and products exported to Europe carry full CE conformity documentation.
Standard OEM production lead times range between 25 and 35 calendar days following client sign-off on shop drawings and receipt of deposit. For oversized commercial projects requiring custom extrusion dies or unique curved glass components, lead times typically run 40 to 45 days. We coordinate container loading directly at our Foshan facility and ship via major international ports including Guangzhou, Shenzhen, and Hong Kong.
Windows and doors are exposed to significant vibration, humidity, and shifting during ocean transport. We protect all profiles with anti-scratch peelable tape, double-wrap assemblies in shock-absorbing EPE foam, fit custom corner buffers, and pack units into heavy-duty fumigated wooden crates. Crates are loaded and lashed directly inside containers with desiccant systems to prevent moisture damage during transit.
We offer world-class European hardware systems, including Siegenia, Roto, Hoppe, and Sobinco, as well as premium domestic high-cycle systems like Kin Long. Our casement windows utilize multi-point mushroom cam shoot-bolts for enhanced forced-entry security, while our heavy-duty sliding systems feature precision tandem rollers rated for sash weights up to 400kg.
Every delivery includes labeled shop drawings, connection detail illustrations, sub-frame anchoring guides, and drainage layout diagrams. In addition, our engineering department provides remote video technical guidance, pre-installation walkthroughs, and exploded 3D assembly models to ensure your local installation teams achieve accurate, air- and water-tight results.
Send your project schedule, architectural CAD elevations, or custom extrusion requirements directly to our engineering team. We deliver comprehensive DFM feedback, certified thermal calculations, and competitive FOB/CIF quotations within 24 hours.
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