Explore our premium CE-certified aluminium window profiles and specialized custom glazing configurations
As commercial developers, facade engineers, and architectural buyers seek higher energy performance and sophisticated sightlines, CE Certified Aluminum Vertical Sliding Windows have emerged as a prime architectural choice globally. Combining traditional vertical slider aesthetics (sash windows) with state-of-the-art thermal break engineering, these window systems provide smooth counterbalanced movement, weatherproofing, and strict alignment with European Union construction product directives (CPR 305/2011).
At Meric Window Systems Co., Ltd., we specialize in direct manufacturing and technical engineering of vertical sliding sash windows crafted from high-precision 6063-T5 aluminium alloy. By replacing outdated weight-and-pulley hardware with advanced spring torsion spiral balancers and incorporating PA66 polyamide thermal breaks, our systems overcome traditional air leakage while handling large double and triple-glazed sashes up to 150 kg per panel.
Why international specifiers trust our CE-certified vertical sliding window profiles for luxury residential and commercial developments.
Engineered with 24mm to 34mm glass-fiber reinforced PA66 strips that isolate exterior aluminium extrusions from interior frames, mitigating cold bridges and condensation.
Heavy-duty stainless steel spring balancers customized to precise sash weights. Delivers smooth fingertip operation, multi-position holding, and long-term durability up to 50,000 operational cycles.
Both top and bottom sashes feature concealed release latches allowing panels to tilt inward at 90 degrees. This provides safe, simple glass cleaning from inside the building on high-rise structures.
The table below highlights performance criteria verified under European Norm standard EN 14351-1:2006+A2:2016, ensuring our aluminum vertical sliding windows meet global procurement standards for facade integrity, sound dampening, and safety.
| Performance Standard | Test Methodology | Certified Performance Rating | Architectural Application |
|---|---|---|---|
| Air Permeability | EN 12207 / ASTM E283 | Class 4 (600 Pa) | High-rise facade weatherproofing & low air infiltration |
| Water Tightness | EN 12208 / ASTM E331 | Class E900 (900 Pa) | Coastal wind-driven rain and extreme weather resistance |
| Wind Load Resistance | EN 12210 / ASTM E330 | Class C5 (2000 Pa) | Structural integrity in hurricane-prone & tall building zones |
| Acoustic Rating (Rw) | EN ISO 10140-2 | Up to 42 dB (-1;-4) | Urban luxury apartments, hotel guest rooms, & schools |
| Thermal Transmittance (Uw) | EN ISO 10077-2 | 1.1 - 1.4 W/m²K | Passive house retrofit, NZEB projects, & green buildings |
| Operating Force | EN 12046-1 | Class 2 (< 30 N) | Accessible building designs & universal ergonomic compliance |
Key technological shifts shaping global sourcing for aluminum vertical sliding windows in modern architecture.
Global architectural specifications increasingly demand Declaration of Conformity (DoP) and Environmental Product Declarations (EPD). Procuring 6063-T5 aluminum extruded using recycled scrap or hydro-powered smelters reduces embodied carbon significantly while meeting strict EU Green Deal mandates.
Traditional sash windows featured bulky 80mm+ center interlocks. Modern trends prioritize ultra-narrow profile interlocks down to 32mm–45mm, maximizing natural daylight permeability without compromising wind resistance or structural load ratings.
Commercial luxury developments are shifting toward motorized vertical sliding sash windows. Integrated linear actuators hidden within frame cavities connect seamlessly with KNX or RS485 building management systems (BMS) for automated night ventilation.
B2B importers and project general contractors now reject unverified manufacturer claims. Procurement strategies mandate fully traceable testing batch numbers, factory production control (FPC) systems, and factory audit verification under ISO 9001:2015.
As a specialized manufacturer and global supplier of architectural aluminium window systems, Meric Window Systems Co., Ltd. bridge the gap between complex architectural blueprints and structural performance on site.
Essential answers regarding certification, engineering, logistics, and technical specifications for commercial window buyers.
Our CE certification package includes the Declaration of Performance (DoP) compliant with EN 14351-1, Initial Type Testing (ITT) reports certified by notified laboratory bodies, Factory Production Control (FPC) documentation, and detailed product labeling affixed to each unit for customs clearance and site inspection.
Aluminum profile vertical sliders offer far superior structural strength, allowing for slimmer sightlines and substantially larger glass sizes than vinyl (PVC). Unlike timber, high-tensile 6063-T5 aluminum alloy will not swell, rot, warp, or require regular painting in humid or marine environments, while PA66 thermal breaks match PVC energy performance.
Standard fabrication lead time is typically 25 to 35 business days following final shop drawing approval and color sample verification. For large commercial projects or custom extrusion die creation, timelines are adjusted based on total unit volume and glass supply schedule.
Yes. In addition to CE compliance, our engineering team regularly designs and tests window profiles against Australian Standard AS2047 / AS1288 as well as North American AAMA/WDMA/CSA 101/I.S.2/A440 standards depending on project destination needs.
We incorporate high-grade stainless steel spiral balances, block & tackle constant force balancers, and multi-point locking hardware from reputable international suppliers (e.g., Caldwell, Truth Hardware, Siegenia, or premium custom OEM hardware) rated for long lifespan and corrosion resistance.
Submit your window schedule, elevation drawings, or CAD specs. Our senior facade engineering team will deliver structural calculations, U-factor estimates, and direct factory pricing within 24 hours.