Derived from premium 6063-T6 architectural grade aluminium profiles, multi-point hermetic seals, and automotive-grade insulated glass units, each assembly is designed for the microclimates of Northern Vietnam.
From dense tube houses (Nhà Ống) in Hoan Kiem and Dong Da to lakeside luxury estates in Tay Ho and Ciputra, our kitchen window configurations resolve Hanoi's stringent moisture, ventilation, and spatial constraints.
Deep urban shophouses require powerful air displacement over gas cookers without capturing exterior street particulate. Our narrow-mullion casement and awning kitchen windows create effective stack-effect thermal airflow into internal lightwells (Giếng Trời).
During the February–April "Nồm" humid season, relative humidity consistently hits 95%–100%. Our Polyamide thermal break profiles prevent internal dew-point condensation, safeguarding costly kitchen cabinetry from wood-rot, blistering, and black mold.
Modern multi-story apartments require extreme acoustic insulation from urban traffic (Ring Roads 2 & 3) alongside certified resistance to tropical depression wind loads. Our heavy-duty kitchen sliding systems deliver quiet culinary serenity.
Selecting fenestration systems for premium Vietnamese real estate requires empirical data. Review how DERCHI’s engineered 6063-T6 thermal systems outpace generic local fabrications.
| Performance Metric | Generic Local Fabrications (Hanoi Workshop) | DERCHI Architectural Systems (Guangdong) | High-End European Imports | Vietnamese Code Compliance (QCVN 09:2017) |
|---|---|---|---|---|
| Aluminium Alloy Profile | Standard 6063-T5 (1.2–1.4mm wall) | Virgin 6063-T6 (2.0–3.0mm structural wall) | 6060-T66 / 6063-T6 (1.8–2.2mm) | Exceeds Standard |
| Thermal Transmittance (U-Value) | 5.8 – 6.2 W/(m²·K) (Non-Thermal) | 1.6 – 2.0 W/(m²·K) (PA66 Thermal Break) | 1.4 – 1.8 W/(m²·K) | Compliant (LOTUS / EDGE) |
| Water-Tightness (GB/T 7106 / AS2047) | 150 – 250 Pa (Prone to monsoonal leaks) | 700 – 900 Pa (Stepped drain chamber) | 600 – 900 Pa | Typhoon Resistant |
| Acoustic Isolation (STC / Rw) | 22 – 26 dB (Street traffic audible) | 38 – 42 dB (Argon / PVB composite) | 40 – 44 dB | Acoustic Shield Verified |
| Coating Durability | Standard Powder Coating (3–5 years peel) | AkzoNobel / PPG PVDF (20+ Year Warranty) | Anodized / PVDF (15–20 Years) | Acidic Grease Proof |
| Procurement Lead Time to Hanoi | 7–15 Days (Variable quality) | 18–25 Days (Precision shop fabrication + border truck) | 60–90 Days (Sea transit + port delay) | Fast Construction Turnaround |
As living standards rise throughout Tay Ho, Cau Giay, Long Bien, and Nam Tu Liem, kitchen window requirements are transitioning toward intelligent, ultra-slim, and green-certified assemblies.
Vietnamese residential layouts are abandoning isolated wet-kitchen spaces. Modern floor plans demand wide-aperture pocket sliding or electric bifold window walls that instantly unify interior culinary zones with lush courtyard gardens or balcony dining verandas.
Institutional developers and green building contractors are prioritizing fenestration with reduced Solar Heat Gain Coefficients (SHGC < 0.30). Low-E coated double glazing and thermal-break profiles drastically cut AC load amid Hanoi's 40°C heatwaves.
Motorized awning kitchen windows equipped with hidden chain actuators, rain sensors, and smoke detection interfaces are trending across luxury penthouses. Windows automatically open during heavy cooking and seal hermetically during unexpected downpours.
Traditional bulky aluminium frames are rapidly giving way to concealed-sash minimalist designs with visible mullion widths under 30mm. This maximizes ambient daylight while sustaining structural deflection resistance during tropical storm wind gusts.
Headquartered in Foshan, Guangdong—the world’s epicenter of architectural aluminium extrusion—DERCHI operates an expansive 180,000㎡ state-of-the-art production base staffed by over 600 skilled technicians. With more than 25 years of engineering mastery, we operate among the Top 10 recognized fenestration enterprises in China.
For architectural specifiers, general contractors, and trade importers across Northern Vietnam, DERCHI provides an airtight supply chain: direct factory-to-site trucking through Pingxiang/Lang Son border crossings, rigorous shop-drawing engineering, and zero-defect quality control.
Clear, technically explicit guidance on cross-border logistics, import duties, moisture protection, and custom fabrication for Vietnamese building codes.
For projects in Hanoi, Bac Ninh, and surrounding northern provinces, we primarily utilize dedicated cross-border road freight via the Pingxiang (Guangxi) – Hữu Nghị (Friendship Pass, Lang Son) border crossing. Once custom clearances are finalized, transit from our Foshan facility directly to your jobsite in Hanoi takes only 3 to 5 days.
For container-load orders prioritizing lower shipping expenditure, we also route 20GP or 40HQ sea containers from Nansha or Shekou port directly to Haiphong Port (Cảng Hải Phòng), with a 4 to 6-day voyage followed by domestic trucking via the CT04 expressway to Hanoi.
Yes. Under the ASEAN–China Free Trade Area (ACFTA) agreement, our export department prepares genuine Certificate of Origin Form E along with certified commercial invoices, packing lists with itemized HS codes (typically 7610.10 for aluminium windows/doors), and mill test certificates.
This allows verified Vietnamese importers, general contractors, or clearing agents to benefit from preferential tariff rates (often dropping import duty to 0% to 5%, depending on the specific profile category), significantly lowering your overall landed cost compared to domestic purchasing.
The "Nồm" phenomenon occurs when warm, moisture-saturated southern air clashes with cold interior surfaces, raising interior relative humidity above 95% and causing rapid condensation on conventional cold aluminium profiles.
DERCHI mitigates this through three engineering layers: (1) Multi-chamber Polyamide PA66 GF25 thermal breaks that physically separate interior and exterior extrusion temperatures; (2) Argon-injected insulated glass units (IGU) with composite warm-edge spacers that eliminate cold perimeter perimeter bands; and (3) Micro-cellular EPDM foam continuous compression seals with concealed sill drainage channels that channel any incidental moisture outward before pooling can compromise your kitchen sill.
Vietnamese high-heat stir frying produces dense airborne oil aerosols and acidic seasoning vapours that degrade cheap architectural coatings within 12–24 months. We apply AkzoNobel Interpon D2525 Qualicoat Class 2 architectural powder coatings or optional 3-coat/2-bake fluorocarbon PVDF (Kynar 500) finishes.
These industrial fluoropolymer and super-durable polyester coatings exhibit zero chalking, withstand severe neutral salt spray (ASTM B117) exceeding 3,000 hours, and resist staining from boiling grease, soy derivatives, and saline fish sauce vapor. Surfaces wipe clean with standard neutral kitchen detergents without surface hazing.
Renovations in central districts (Ba Dinh, Hai Ba Trung, Hoan Kiem) frequently exhibit out-of-square brick openings and irregular lintels. Rather than standard catalog sizes, 100% of our production is fabricated strictly against verified shop drawings.
Our engineering division generates comprehensive AutoCAD shop submittals detailing frame deduction tolerances, sub-frame receptor channels, expandable perimeter fin adaptors, and thermal shim configurations. We do not cut extrusion until the architect and site contractor officially sign off on dimensions.
To eliminate sash sagging, corroded friction hinges, or stiff sliding rollers, DERCHI incorporates tier-one international architectural hardware including Siegenia (Germany), Roto Frank (Germany), Hoppe (Germany), and CMECH (USA), complemented by premium Kinlong stainless steel systems upon request.
All kitchen window friction stays, four-bar hinges, transmission rods, and security multipoint latches are fabricated from grade AISI 304 or marine-grade AISI 316 stainless steel, cycle-tested to 50,000+ open-close actuations without mechanical failure.