Engineered with heavy-duty structural aluminum profiles, our systems are customized to match high-end residential and commercial architecture across Amsterdam, Rotterdam, and Utrecht.
Understanding the unique architectural, climate, and regulatory conditions of the Benelux region.
In the Netherlands, maximizing natural daylight while safeguarding spaces against volatile coastal winds and seasonal rains is a core architectural priority. As Dutch homeowners and hospitality operators seek to optimize outdoor spaces, the demand for high-performance retractable sunrooms has reached an all-time high.
Unlike traditional static structures, retractable sunrooms allow seamless transformation. During warm summer days, the system slides open to reveal an outdoor terrace. In colder months, it creates a fully insulated, weather-tight living space. However, this flexibility requires exceptional structural engineering. Sunrooms installed near North Sea coastal zones (such as Zeeland or Noord-Holland) must resist high wind pressures (NEN-EN 1991) and conform to local municipal architectural guidelines (Welstandseisen).
Furthermore, under the modern Dutch BENG (Bijna Energieneutrale Gebouwen) regulatory framework, thermal insulation is paramount. Our structures integrate high-performance thermal break technology and low-emissivity (Low-E) double or triple glazing, ensuring that your sunroom does not compromise the energy profile of the primary property.
Our sunrooms feature high-grade thermal breaks and optional argon-filled triple glazing, meeting rigid U-value requirements for modern Dutch residential and commercial structures.
Specifically treated for coastal salinity. Utilizing Qualicoat-certified powder coatings and premium anodized aluminum profiles to prevent oxidation in maritime climates.
Engineered structural frames certified to withstand Dutch coastal wind loads (up to Beaufort 11) and heavy wet snow loads common to Northern European winters.
Established in 2009, Aoli Aluminum is a vertically integrated manufacturer specializing in high-performance aluminum alloy profiles, customized glazing structures, and specialized retractable sunroom enclosures. Headquartered in Sihui, Guangdong, with sales and design networks in Foshan, we operate under a rigorous ISO 9001:2015 quality management system.
Our operational philosophy is driven by our core mission: Building sustainable cities for the world. Through years of technical evolution, we have established our flagship brand, "Aolijie", which serves as a global benchmark for precision-machined aluminum building and industrial profiles. We do not just extrude metal; we provide engineered, ready-to-install architectural solutions tailored directly to structural drawings.
With 4 specialized production bases and a fleet of advanced extrusion lines ranging from 900 tons to 2,000 tons, we possess the raw capacity and structural design depth required to satisfy complex custom commercial specifications.
A deep-dive technical overview of our structural systems and manufacturing workflow.
Our retractable sunrooms utilize a multi-chambered aluminum extrusion design (primarily utilizing 6063-T6 or 6061-T6 structural alloy). The integration of PA66 glass-fiber reinforced polyamide thermal barrier strips ensures optimal decoupling of the outer and inner aluminum frames. This effectively interrupts heat transfer pathways, drastically reducing thermal bridge effects.
Our sliding tracks feature CNC-machined heavy-duty stainless steel rails embedded in the structural sills. Coupled with custom-molded high-density polymer tandem rollers, the panels glide silently under low frictional resistance. Each sliding panel includes a dual-lip EPDM weather stripping seal, protecting against wind-driven horizontal rain up to Class E900 standards (EN 12208).
For automated installations, we coordinate with major European motor control protocols (Somfy, KNX). This allows sunroom retractability to be adjusted via smart home controllers, wind sensors, or temperature thresholds, providing automated ventilation during hot summer afternoons.
| Aluminum Alloy | 6063-T6 / 6061-T6 (Architectural Grade) |
| Thermal Break | 24mm - 34mm PA66 Polyamide Strips |
| Wind Load Rating | Up to Class C5 (EN 12210) / 2.0 kN/m² |
| Glazing Profile | Double or Triple Tempered/Laminated Safety Glass |
| Surface Treatment | PVDF Coating / Qualicoat Seaside Powder Coating |
| Water Tightness | Class 9A (EN 12208) |
From a regional extruder to an international structural glazing systems provider.
Our founder Mr. Wong established a 10,000 square meter standardized production base in Sihui City, Guangdong Province, launching the "Aolijie" brand. Mr. Wong, who entered the construction materials market in 2000, realized the massive potential of low-carbon, durable aluminum structures for the green cities of tomorrow.
Focusing strictly on design validation, we obtained 13 utility patents and secured ISO 9001 certification. We integrated modern anodizing and powder coating plants to supply weathering-grade components for global construction projects.
To support massive global export demands, we constructed a 100,000 square meter modern production base, scale-boosting our output to 100,000 tons annually. We introduced multi-ton extrusion lines and automated packing machinery.
In 2024, we set up our primary sales branch in Foshan to handle direct global trade. In 2026, we will officially open our Southeast Asian office in Malaysia, while continuing to expand our regional logistical and structural partnerships in Western Europe.
How we ensure every batch of structural profiles meets CE and European architectural norms.
Dutch projects demand long-term structural integrity under wind load, maritime salinity, and UV exposure. Our quality program goes beyond visual inspection. We run a comprehensive testing cycle on raw alloy composition and finished coating parameters before shipping.
Every batch of retractable sunroom profiles undergoes:
Chemical Analysis
Tensile Test
Hardness Test
Dimensional Measurement
Coating Test
Salt Spray Test
Why architects, general contractors, and glazing companies in the Netherlands source from Aoli Aluminum.
Navigating global supply chain logistics is critical for B2B buyers. Sourcing sunroom systems directly from Aoli Aluminum allows Dutch building companies to bypass multiple layers of distribution markups, reducing structural material costs by up to 30-40% compared to local middle-tier fabrication shops.
How we ensure secure, on-time delivery:
We work directly from CAD plans to produce custom-machined extrusion profiles, ensuring zero-waste sizing and saving labor costs during structural installation.
Quality checks utilize AQL-based inspection (ISO 2859/ANSI Z1.4). Every shipment includes detailed chemical, mechanical, and surface test reports.
We keep production cost-efficient through vertical integration—handling everything from raw ingot extrusion and surface finishing to deep CNC milling under one roof.
Explore our architectural and industrial capabilities from building envelopes to custom machinery frames.
Delivering high-end architectural glazing structures and profiles for worldwide residential and commercial developments.
Suburban Retractable Pool Enclosure
Commercial Restaurant Terrace Enclosure
Double-Glazed Modular Glass Sunroom
Architectural Facade System Integration
Clear, direct, and authoritative answers about purchasing, engineering, and installing retractable sunrooms in the Netherlands.
Premium aluminum building profiles, curtain wall components, and hardware components sourced directly from our production lines.
Aoli Aluminum
