Explore our high-performance fenestration systems manufactured to strict European standards.
An technical evaluation for real estate developers, facade engineers, general contractors, and institutional procurement teams requiring verified regulatory compliance and structural integrity.
In modern building facade engineering, the selection of fenestration systems directly impacts building thermal efficiency, acoustic insulation, structural safety, and life-cycle operational costs. As a primary manufacturer and global exporter, Doorreme Aluminum Industry Co., Ltd. produces CE-certified aluminium casement windows designed to meet strict European Union Construction Products Regulation (CPR No. 305/2011) standards under harmonize specification EN 14351-1:2006+A2:2016.
Achieving superior building envelope performance requires systematic engineering. The structural performance of our aluminum casement window profiles relies on high-grade 6063-T6 architectural aluminum alloy extrusions featuring structural thermal breaks (PA66-GF25 polyamides). Below is our certified performance standard matrix tested under European laboratory protocols:
| Performance Parameter | European Test Standard | Achieved Classification | Engineering Value & Testing Conditions |
|---|---|---|---|
| Air Permeability | EN 12207 | Class 4 (Highest) | Air leakage ≤ 3 m³/h·m² at 600 Pa positive test pressure |
| Water Tightness | EN 12208 | Class E1050 / Class 9A | No water penetration under 1050 Pa continuous static pressure spray |
| Wind Load Resistance | EN 12210 | Class C5 / B5 | Frontal deflection ≤ L/300 under 2000 Pa design wind pressure (P1) |
| Thermal Transmittance ($U_w$) | EN ISO 10077-2 | Up to 0.85 W/(m²·K) | Triple glazed low-E units with Warm Edge spacer & Argon filling |
| Acoustic Insulation ($R_w$) | EN ISO 717-1 | 38 dB - 45 dB | Laminated acoustic glass (5mm + 1.14 PVB + 5mm) configurations |
| Operating Forces | EN 12046-1 | Class 2 | Multi-point locking handle force ≤ 10 N for smooth continuous duty |
Primary aluminum billets extruded with wall thickness tolerances controlled within ±0.1mm, ensuring structural stability under high wind loading.
25% glass fiber reinforced polyamide insulation strips eliminate thermal bridging between internal and external profile chambers.
Integrated German Roto / Siegenia peripheral hardware transmission with continuous EPDM triple-gasket compression seals.
Why tier-1 global contractors, architectural firms, and commercial developers partner directly with our Foshan manufacturing hub.
Established in 2004 in Foshan, China—the global center for aluminum extrusion—our facility houses automated Italian CNC cutting centers, German double-head miter saws, and automatic corner crimping lines delivering an annual output capacity exceeding 500,000 m².
Over two decades of international trade compliance. Our engineering team routinely delivers project packages tailored to North American ASTM/NFRC standards, Australian AS2047 benchmark testing, and European CE mark specifications across hurricane, tropical, and cold climates.
We provide comprehensive shop drawings, structural wind pressure calculations, anchor point stress analysis, and thermal simulation reports before production authorization. Custom structural mullion reinforcements are integrated for high-rise wind loads.
Selecting the optimal casement window opening mechanism based on spatial orientation, acoustic requirements, and weather exposure.
Best for: Tropical & high-rainfall coastal regions.
Mechanism: Friction stay hinges press sash inward against outer frame under positive wind pressure, increasing water tightness during heavy storms. Integrates SS304 security screen mesh.
Best for: European mid-to-high-rise residential towers.
Mechanism: Dual-action gear handle enables top-tilting draft-free ventilation or 90-degree inward swing for safe interior glass maintenance without exterior scaffolding.
Best for: Curtain wall integration & commercial facades.
Mechanism: Hinge mounted on top edge swings outward from bottom. Allows continuous natural ventilation even during intense vertical rainfall while maintaining security.
Emerging architectural standards and regulatory shifts transforming the global aluminium fenestration export market.
Global building energy codes are tightening. Future procurement demands window systems with $U_w \le 0.8 \text{ W/(m²·K)}$. Doorreme integrates ultra-wide multi-cavity polyamide strips, aerogel insulation fills, and vacuum insulating glass (VIG) technologies to meet zero-carbon building directives.
Architectural preferences favor concealed hinges, hidden sashes, and narrow frame profiles (under 40mm visible width) to maximize natural light transmittance without compromising wind load deflection ratings or multi-point locking points.
Procurement contracts increasingly require concealed electric chain actuators integrated with Building Management Systems (BMS), electrochromic smart tinting glass, and automated rain/wind sensor overrides for automated commercial ventilation.
Direct technical answers addressing engineering verification, logistics, customization capabilities, and compliance documentation.
For all CE-bound export orders, we supply the official Declaration of Performance (DoP) under EN 14351-1, verified initial type testing (ITT) laboratory reports for air, water, and wind performance, factory production control (FPC) certificates, and full traceably tagged CE product labels affixed to every window assembly.
Yes, 100% of our production is custom-engineered to order. Our technical department converts your architectural elevations, site floor plans, or structural CAD files into detailed 2D/3D fabrication drawings. Production commences only after explicit drawing sign-off by the buyer or structural engineer.
For coastal applications subject to salt-spray corrosion, we apply Fluorocarbon (PVDF) 3-coat spray finishes certified to AAMA 2605 standards, guaranteeing color retention and anti-corrosion resistance for over 20-25 years. We also offer Qualicoat Class 2 architectural powder coating and 25-micron anodized finishes.
We utilize export-grade packaging: each window unit is wrapped in protective shrink-film, fitted with heavy-duty corner protectors, and packed inside fully enclosed fumigated plywood crates with integrated air-cushioned spacer blocks. Crates are engineered for direct forklift unloading on construction sites.
We offer premium German hardware options, including Roto Frank, Siegenia-Aubi, and Hoppe, as well as top-tier specialized Chinese hardware lines (CMECH, Kin Long). All hardware is salt-spray tested to EN 1670 Grade 4/5 for maximum operational lifespan.
Our standard production lead time is 25 to 35 calendar days following final production drawing approval and deposit confirmation. For custom architectural projects, our MOQ starts from a single project package (residential villa or commercial facade volume) with scalable volume discounts for bulk container orders.
Submit your project CAD drawings, elevation schedules, or site specifications. Our facade engineering team will prepare structural calculation reviews and factory-direct pricing within 24 hours.
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