High-performance double-glazed and thermal break tilt-and-turn configurations optimized for structural wind loads and thermal efficiency across the Bosphorus region.
Istanbul occupies a unique geographic zone straddling the Black Sea and the Sea of Marmara. This position subjects high-rise developments, commercial offices, and coastal residences to severe wind loads, highly corrosive maritime air, and distinct seasonal temperature swings. For fenestration engineers, this requires structural systems that exceed ordinary specifications.
Wind Load & Structural Deflection: Coastal areas along the Bosphorus, Sarıyer, and Florya require aluminum frame systems certified to withstand wind pressures up to Class C5/P3. Standard frames run the risk of bowing under these loads, leading to seals degrading and water infiltrating. Our structural alloy profiles (specifically 6063-T5/T6) ensure the structural integrity of your openings.
Acoustic Decoupling in Dense Urban Areas: Istanbul's rapid urban expansion and heavy transport arteries (such as the E5 Highway and TEM motorway) make sound insulation a critical design metric. A double-glazed tilt-and-turn window with multi-chamber EPDM gaskets offers sound attenuation ratings of Rw ≥ 45dB, creating a quiet interior environment even in dense city centers like Mecidiyeköy or Maslak.
Polyamide thermal breaks act as a thermal barrier, limiting heat exchange between the humid maritime air outside and the climate-controlled indoor spaces, preventing interior condensation.
Our window systems feature multiple lock points around the perimeter of the frame, drawing the sash tightly against the double-barrier gaskets to block dust, wind, and driving rain.
Engineered with low-emissivity glass coatings and advanced acoustic barriers to meet Turkey's TS 825 insulation standards.
Engineering window solutions that align with Turkish standard codes, European CE directives, and the structural requirements of high-performance architectural projects.
| Performance Vector | Test & Compliance Benchmark | Istanbul Specific Requirements | ORM Engineering Specifications |
|---|---|---|---|
| Thermal Insulation | TS 825 (U-Value Limits) | U-value ≤ 1.8 W/m²K (Zone 2) | U-value down to 1.3 - 1.5 W/m²K (Standard Option) |
| Acoustic Rating | EN ISO 717-1 (Sound Proofing) | Rw ≥ 38 dB (Near Transit Zones) | Rw up to 45 dB (Dual-glazed asymmetric laminate glass) |
| Wind Load Resistance | EN 12210 (Structural Deflection) | Class B3 to C3 (Coastal areas) | Class C5/P3 (Tested structural reinforcement options) |
| Water Tightness | EN 12208 (Driving Rain) | Class 7A to 9A | Class E900 (High-compression EPDM triple gaskets) |
| Hardware Cycle Life | EN 13126-8 (Tilt & Turn Durability) | Min 20,000 Cycles | Up to 100,000 Open/Close Cycles (German Hardware) |
In accordance with Turkey's environmental mandates and high construction quality requirements, our architectural windows prioritize structural stability and thermal efficiency. By using Polyamide PA66 GF25 thermal barriers within the structural frames, our custom window profiles limit thermal transfer between the interior and exterior environments. This helps projects satisfy localized TS 825 energy conservation requirements while minimizing climate-control energy costs.
Additionally, our architectural team works directly with engineers on local development projects to verify structural calculation formulas, sash size parameters, and glass thicknesses, ensuring all assemblies resist coastal wind pressures without requiring bulky sightlines.
Foshan ORM Windows Co., Ltd. is a professional aluminum window manufacturer located in Foshan, Guangdong, China, one of the country's leading centers for architectural aluminum production and building materials manufacturing. Established in 2011, the company specializes in the design, engineering, manufacturing, and export of high-performance aluminum window systems for residential, commercial, and architectural projects worldwide.
With a modern manufacturing facility covering more than 20,000 square meters and a team of over 280 skilled employees, ORM Windows is dedicated to providing reliable, energy-efficient, and aesthetically appealing window solutions. The company's product portfolio includes aluminum casement windows, sliding windows, awning windows, fixed windows, tilt-and-turn windows, thermal break window systems, double-glazed windows, and customized architectural window solutions designed to meet diverse building requirements.
ORM Windows integrates advanced production equipment, precision fabrication technology, and strict quality management procedures throughout every stage of manufacturing. From aluminum profile processing and glass assembly to hardware installation and final inspection, every product is produced to ensure durability, weather resistance, thermal performance, and long-term reliability.
Supported by an experienced engineering and product development team, the company offers comprehensive OEM and ODM services, including customized dimensions, frame finishes, glazing options, hardware configurations, and private-label manufacturing. These flexible solutions enable builders, developers, distributors, and project contractors to meet specific market and project demands.
Serving customers across North America, Europe, the Middle East, Southeast Asia, Australia, and other international markets, Foshan ORM Windows Co., Ltd. has established a reputation for quality manufacturing, professional service, and dependable delivery. The company remains committed to providing innovative aluminum window solutions that enhance modern architecture while supporting sustainable and energy-efficient building development worldwide.










Foshan, China is recognized globally as a leading hub for raw aluminum extrusion materials, custom glass manufacturing, and fenestration hardware assembly. Partnering directly with a Foshan-based manufacturer like ORM Windows provides procurement advantages that standard regional brokers cannot match.
Cost-Effective Raw Materials: High-performance windows require premium primary aluminum billets (AlMgSi0.5). Foshan's consolidated supply chain allows us to source high-grade raw aluminum and architectural coatings at a lower price point, passing those savings on to our project clients.
Advanced OEM & ODM Capabilities: Our manufacturing facility handles complex custom specs, including non-standard architectural frame shapes, specialized profiles, and custom hardware. We offer customized glass options like triple-glazed Low-E, acoustic laminates, and built-in privacy blinds.
Reliable Shipping to Ambarlı Port: We manage export logistics, secure packing, and customs documentation. Ocean freight routes run from nearby Guangzhou or Shenzhen ports directly to Kumport and Ambarlı Ports in Istanbul, with transit times averaging 28 to 35 days.
Every batch of aluminum profiles undergoes mechanical testing for tensile strength, hardness, and coating thickness before assembly.
We use protective film, corner guards, and custom crates to prevent scratches and transport damage during the sea voyage to Istanbul.
We prepare all necessary shipping documents, certificates of origin, and compliance files to streamline customs clearance at Istanbul ports.
Explore our full line of tilt-and-turn systems, sliding options, and structural casements engineered for multi-family residential and commercial projects in Istanbul.
From historical preservation to modern high-rises, our window systems are designed to meet diverse architectural requirements.
Projects along the Bosphorus and Marmara shores (such as Bebek, Tarabya, and Bakırköy) deal with high humidity and salt spray. Anodized frame finishes and heavy-duty seals protect against corrosion while maintaining clear waterfront views.
Upgrading historical properties in Kadıköy or Beşiktaş requires preserving original aesthetics while improving energy performance. Our custom profiles offer modern thermal performance with sightlines that complement historical architectures.
For modern commercial high-rises in business districts like Levent, Maslak, and Ataşehir, tilt-and-turn windows offer convenient maintenance access and ventilation while resisting wind pressure at high elevations.
Answers to common structural, thermal, and logistical questions regarding the export of aluminum window systems to Turkey.
Aluminum profiles offer superior structural strength compared to PVC, allowing them to support larger glass spans without warping. Under the high wind loads found along the Bosphorus and in tall structures, PVC frames can flex, which compromises weather seals and causes draft issues. Aluminum also offers longer life cycles, high UV resistance, and thin profiles that maximize natural light.
Turkey's TS 825 standard mandates strict thermal transmittance (U-value) thresholds depending on the geographic zone. ORM Windows utilizes multi-chambered polyamide thermal break technology within our aluminum frames, which acts as a barrier to heat transfer. Combined with double or triple-glazed Low-E glass filled with Argon gas, our window systems achieve U-values under 1.5 W/m²K, which complies with regional requirements.
Production typically takes 25 to 35 days, depending on project scale and customization. Sea transit from Shenzhen or Guangzhou ports to Istanbul's Kumport or Ambarlı Ports takes approximately 28 to 35 days. We prepare full export documentation, including packing lists, commercial invoices, bill of lading, and certificates of conformity, to ensure smooth customs clearance in Turkey.
Yes, we provide full OEM and ODM services. Frame finishes can be customized with powder coatings in any RAL color, anodized finishes, or wood-grain textures. For hardware, we offer premium Chinese brands (e.g., Kinglong) as well as European options (such as Siegenia, Roto, or G-U) to match your performance and budget requirements.
Tilt-and-turn windows provide two ventilation functions: the "tilt" function opens the top of the sash inward, allowing draft-free ventilation that keeps rain out, while the "turn" function swings the window inward for maximum airflow and easy cleaning. The multi-point compression seals on tilt-and-turn designs also provide better acoustic and thermal insulation than sliding systems.
Contact our Foshan-based engineering team to request a quotation, obtain product details, or discuss architectural specifications for your next development in Istanbul.
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