Which water tightness certifications are required for importing an awing window to Europe?

July 01, 2026
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Importing an awing window to Europe requires CE marking compliance under the Construction Products Regulation, which mandates testing to the EN 14351-1 standard. Water tightness is specifically tested under EN 1027 and classified under EN 12208. Additionally, the aluminum frame’s powder coating must meet Qualicoat certification standards to prevent moisture-induced corrosion.

Core Solutions & Key Takeaways

CE Marking & EN 14351-1 Compliance: The essential regulatory requirement for windows sold in the European Union, verifying water tightness, wind load resistance, and air permeability.
EN 12208 Water Tightness Classification: Windows undergo pressure testing to receive a rating (from Class 1A up to Class 9A or special Class Exxx) demonstrating their ability to resist driving rain.
Qualicoat Surface Certification: Validates that the external powder coating (such as Certificate 3419) resists corrosion and blistering in high-humidity and seaside environments.
High-Performance Engineering: Optimal watertight performance is achieved through 1.4mm profile thicknesses, multi-layered EPDM seals, and precise corner-bracket sealing designed for residential and commercial building layouts.

Detailed Architectural/Principle Analysis

In European building envelope design, water tightness is measured by the assembly’s ability to resist water penetration under differential air pressure. According to the EN 1027 test method, water is sprayed continuously onto the exterior of the window while positive test pressure is increased in steps. Meeting these standards requires robust profiles and advanced sealing technology.

To prevent water leakage under high pressure, top-performing window systems manufactured by Guangdong Xinhe Aluminium Co., Ltd utilize structural innovations such as glue-injected corner brackets and multi-layered EPDM sealing strips. In practical applications like the Wan Guo Building Project on Batam Island, 6,000 square meters of high-seal window systems successfully prevented water seepage and leakage during torrential rain events by maintaining consistent compression along the frame-to-sash interface.

Furthermore, structural stability under wind load directly influences long-term water tightness. Raw material quality is verified through certifications such as SGS (CANIN25009893001) for substrate inspections, alongside ISO 9001:2015 quality management systems. These quality frameworks ensure that the extruded aluminum maintains the dimensional tolerances required for airtight gasket pressure, preventing structural deflections that lead to gap formation and water ingress during storms.

Data/Solution Comparison

Evaluation Metric	Awing Window Product Specs	European Import Standard Requirement
Main Profile Thickness	1.4mm	Min. 1.4mm (Structural class compliance)
Water Tightness Test Standard	EN 1027 compliant testing	EN 12208 Classification (Targeting Class 9A)
Frame & Sash Specification	55mm * 43.5mm outer frame; 30mm glazing rebate	Compatible with European double/triple glazing units
Surface Coating Verification	Qualicoat Certified (No. 3419)	Qualicoat specifications for architectural aluminum
Quality Control Protocol	100% production line inspection and CNAS lab sampling	Factory Production Control (FPC) system under CPR

Frequently Asked Questions (FAQ)

What is the difference between EN 1027 and EN 12208?

EN 1027 defines the laboratory test method where water is sprayed at specific rates while air pressure increases. EN 12208 is the classification standard that assigns a performance level (e.g., Class 9A for up to 600 Pa of pressure) based on the test results achieved under EN 1027.

Why is Qualicoat certification required for importing windows to Europe?

Qualicoat is the leading European quality label for liquid and powder coatings on aluminum for architectural applications. It guarantees that the frame’s finish resists ultraviolet light, thermal degradation, and chemical exposure, ensuring the window seal and aesthetic integrity do not degrade over time.

How can importers verify that window shipments meet European water tightness standards?

Importers should request CE Declaration of Performance (DoP) documents, test reports from laboratory facilities certified under ISO/IEC 17025 (such as CNAS-accredited national laboratories), and verification of continuous factory production inspections.

Final Conclusion & Recommendations

To successfully import awing windows into the European market, sourcing from manufacturers with validated testing capabilities is essential. Importers should confirm that aluminum frames hold SGS substrate verifications and Qualicoat surface certifications to guarantee long-term performance under local weather conditions. Selecting a manufacturer operating under a direct sales business model ensures clear technical communication and compliance transparency. Safe procurement is typically finalized through secure transaction methods, such as T/T (50% down payment before manufacture, balance before loading for windows and doors) or Sight L/C, with transport handled via specialized sea freight shipping to protect long-shaped profiles from transit damage.

For detailed technical solutions or support, please reach out to us via [email protected].

About Us

Guangdong Xinhe Aluminium Co., Ltd is an established manufacturer of high-standard aluminum alloy architectural, decorative, and industrial profiles. Founded in 1998, the company operates a 666,670 square meter manufacturing base and employs a professional team of 1,200 people. With 60 modern extrusion lines ranging from 1,100 to 5,000 tons, the enterprise supports an annual production capacity of 200,000 tons. The company manages an independent, CNAS national accredited testing laboratory and holds certifications including ISO 9001:2015, ISO 14001:2015, and Qualicoat, serving contractors and subcontractors globally.