Custom-fabricated extruded aluminum fenestration products built to structural engineering specifications, offering superior thermal break efficiency, weatherproofing, and architectural aesthetics.
Selecting an original equipment manufacturer (OEM) or original design manufacturer (ODM) for custom white aluminum windows requires evaluating structural alloy composition, surface coating longevity, thermal break barrier engineering, and international code compliance.
In modern architectural fenestration, the structural foundation relies on high-grade 6063-T5 or 6063-T6 aluminum extrusions. These alloys deliver an optimal tensile strength-to-weight ratio, allowing for slim frame profiles while accommodating large structural glass panels. The precision extrusion process ensures wall thickness tolerances ranging from 1.2 mm for light residential applications up to 2.0 mm or 3.0 mm for heavy-duty commercial curtain walls and high-rise casement windows.
The primary concern for commercial developers acquiring custom OEM white aluminum windows is surface chalking, yellowing, and UV degradation. Premium white aluminum window suppliers utilize advanced surface treatment technologies:
While dark profiles absorb solar radiation reaching surface temperatures up to 80°C (causing frame distortion and seal failure), high-reflectance OEM white finishes ($SRI > 78$) maintain profile temperatures within 15°C of ambient air. This significantly reduces differential thermal expansion between the metal frame and double/triple-glazed insulated glass units (IGUs), doubling the operational lifespan of perimeter EPDM weather seals.
Aluminum exhibits a high thermal conductivity ($k \approx 160 \text{ W/m}\cdot\text{K}$). To meet modern green building envelope standards (LEED, Passivhaus, Energy Star), OEM white windows incorporate engineered Polyamide Technoform (PA66GF25) thermal break strips. Reinforced with 25% fiberglass to match the thermal expansion rate of aluminum alloy, these strips physically sever the heat transfer path between the exterior and interior profile sections.
By engineering multi-chamber thermal cavities combined with polyurethane foam filling and triple-seal EPDM gaskets, thermal performance reaches values of:
Full CAD/BIM drawing customization, CAD structural analysis, and bespoke die-extrusion capabilities tailored to complex architectural blueprints.
Strict compliance with ISO9001, CE, CSA, AAMA, and NFRC testing standards for water penetration, air infiltration, and structural wind pressure.
Double & triple tempered Low-E glass, smart electrochromic privacy glass, fire-resistant ceramic glazing, and high-impact SGP laminated safety glass.
As global building codes tighten around operational carbon emissions and architectural aesthetics shift toward minimalist transparency, OEM procurement of white aluminum windows is undergoing major technological shifts.
Modern luxury residential and commercial architecture prioritizes maximum daylighting ($VLT > 75\%$). The demand for ultra-narrow frame white sliding doors and casement windows with visible frame widths under $18\text{ mm}$ is surging. OEM factories are integrating structural silicone glazing (SSG) directly to aluminum sub-frames, transferring wind load directly into the glass pane.
Global real estate developers are demanding Environmental Product Declarations (EPDs). Future procurement requires OEM suppliers to supply profiles extruded from post-consumer recycled aluminum (producing up to 95% fewer carbon emissions compared to primary smelting) without compromising yield strength or powder coating adhesion.
White aluminum window assemblies are evolving into active IoT building components. Procurement trends show rising specifications for concealed electric chain actuators, magnetic sensor contact switches, smart motorized louvers, and automated lock points integrated directly into the window frame cavity.
With increasing hurricane severity and tropical coastal developments, procurement specs demand OEM windows tested to ASTM E1886/E1996 large missile impact standards. White PVDF-coated thermal break aluminum profiles paired with 1.52mm SGP structural laminates lead the coastal architectural sector.
| Performance Standard | Residential Standard Series | Commercial High-Rise Series | Passive House Ultra-Thermal Series |
|---|---|---|---|
| Profile Thickness | 1.2 mm – 1.6 mm | 1.8 mm – 2.5 mm | 2.0 mm – 3.0 mm Multi-Chamber |
| Thermal Break Strip | 14.8 mm PA66GF25 | 24 mm – 34 mm PA66GF25 | 39 mm Insulated Technoform |
| Surface Finish Spec | Qualicoat Class 1 White Powder | Qualicoat Class 2 / PVDF 2-Coat | AAMA 2605 PVDF / Electrophoresis |
| Glazing Configuration | 5mm + 12A + 5mm Double Tempered | 6mm + 16A + 6mm Low-E Tempered | 5mm Low-E + 16A + 5mm + 16A + 5mm Triple |
| Air Infiltration (ASTM E283) | $\le 0.1 \text{ cfm/ft}^2$ | $\le 0.06 \text{ cfm/ft}^2$ | $\le 0.01 \text{ cfm/ft}^2$ |
| Water Resistance (ASTM E331) | 300 Pa (6.27 psf) | 600 Pa (12.5 psf) | $1000\text{ Pa } (20.8\text{ psf})$ |
| Structural Wind Load (ASTM E330) | $\pm 2500 \text{ Pa}$ | $\pm 4500 \text{ Pa}$ | $\pm 6000 \text{ Pa}$ (Typhoon Grade) |
Doorreme Aluminum Industry Co., Ltd. operates as a leading custom OEM/ODM manufacturer in Foshan, China—the world’s hub for high-end aluminum extrusion and building envelope fabrication.
Founded in 2004, Doorreme has expanded to a 123,000 m² state-of-the-art intelligent manufacturing factory equipped with imported German double-head cutting saws, Italian CNC machining centers, and automated high-speed powder coating lines. With an annual production capacity exceeding 500,000 m² of windows, doors, and curtain wall systems, we serve real estate developers, general contractors, architectural firms, and wholesale distributors across 140+ countries.
Our engineering division consists of over 80 structural engineers and CAD/BIM technicians who analyze site-specific wind loads, seismic movements, thermal performance metrics, and water tightness before releasing shop drawings for production.
Clear, technical answers to common queries raised by international project buyers, architects, and procurement managers.
Prevention of yellowing and chalking relies entirely on the formulation of the powder coating resin and pre-treatment chemical conversion layer. Doorreme uses Qualicoat Class 2 certified super-durable architectural polyester powders and fluorocarbon PVDF coatings. Pre-treatment involves a multi-stage zirconium-based chromate-free conversion coating that eliminates metal oxidation underneath the paint layer. Accelerated weathering tests demonstrate gloss retention of over 80% and zero yellowing ($\Delta E < 1.5$) after 3,000 hours of continuous UV-B exposure.
For standard architectural white RAL colors (e.g., RAL 9016, RAL 9010), our flexible factory setup accommodates custom residential orders starting at 50 m². For custom extrusion profile engineering requiring bespoke die tooling, the minimum profile extrusion run is typically 500 kg to 1 ton per custom shape, with die tooling lead times ranging from 7 to 10 working days.
Yes. Our engineering division customizes window profiles and glass specifications to meet region-specific building codes. We provide NFRC thermal performance ratings, CSA certification documentation for Canada, CE marking for Europe, and AS2047 certification for Australia. Structural calculation reports for wind load capacity ($P_3 \ge 4000\text{ Pa}$) are certified by licensed structural engineers upon request.
For cold northern climates requiring anti-condensation and heat retention, we specify wider Polyamide (PA66GF25) strips ($24\text{ mm to } 39\text{ mm}$) combined with multi-chamber insulated foam inserts and triple-pane Low-E glass filled with Argon gas. In hot tropical climates, thermal break profiles prevent solar heat gain from transmitting into air-conditioned interior spaces, significantly lowering HVAC energy loads.
We offer both top-tier international and premium domestic hardware options. Clients can select German Roto, Siegenia, or Hoppe multipoint locking hardware for maximum security and operational smooth feel, or opt for high-grade domestic brands (e.g., Kin Long, Hopo) equipped with SS304 stainless steel hinges and rollers suitable for budget-conscious developments.
Every window assembly undergoes rigorous export packing. Units are wrapped in protective polyethylene scratch-resistant film, fitted with corner shock absorbers, sealed in moisture-proof vacuum wrap, and secured inside fully enclosed plywood crates (fumigation-free). Crates are reinforced with steel strapping and load-tested for ocean freight stability in 20GP/40HQ containers.
Once final production drawings are signed off and technical specifications verified, standard production lead time is 25 to 35 calendar days. For complex commercial curtain wall packages or large multi-family project orders ($>10,000 \text{ m}^2$), phased delivery schedules are established to align with job site construction timelines.
Connect directly with our senior fenestration engineers for structural analysis, preliminary CAD drawings, and direct factory-direct pricing quotes.
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