
Modern Thermal Break Casement Windows

Y103 Aluminum Casement Window Double and Triple Pane Soundproof Energy Star NFRC
DERCHI Y103 is an open-out aluminum casement window built for coastal wind loads, using thermal-break profiles and Low-E double or triple glazing to support energy, comfort, and sound control.
Open-out hurricane-resistant casement for ventilation and weather protection
CE /NFRC Standard Certification
US/ AU IGCC Standard Glass Certification
6063-T5 thermal break aluminum reduces heat transfer
Low-E insulated glass: double or triple pane, argon option
Six-point lock option for added security
Exterior double sealing supports air and water tightness
Powder-coated or PVDF finish options
Magnetic insect screen with nylon netting option
10-year quality warranty under proper use

Description
Videos
Customizable Styles
Hardware Accessories
Advantages
Certificate
Factory-Direct Aluminum Windows: QA, Scale, Warranty
DERCHI Windows And Doors is a global aluminum windows and doors manufacturer with scale, certifications, and engineering depth. Since 2014, we’ve delivered 100+ patented innovations and supplied projects across 30+ countries with local sales support. Our production system includes automated lines, German equipment, and strict QC with 168 processes and 38 tests. We hold key certifications such as CE, NFRC, AS2047, CSA, Energy Star, and hurricane resistance. From triple pane windows to modern casement windows, double hung casement windows, and double hung black windows, we support flexible specs for diverse window styles for house and commercial builds—backed by a 10-year warranty.

Y103 Custom Layouts and Opening Options
Mix operable sashes (A) and fixed panes (F) with outward opening or awning operation to plan ventilation, daylight, views, and hinge direction—supporting triple pane windows specs and common window styles for house projects.

Y103 Casement Window Style Customization Options
The Y103 casement window uses operable sashes (A) and fixed panes (F) to create multiple grille layouts. It supports ventilation, daylight, wide views, and structural stability for modern casement windows and other window styles for house projects, including triple pane windows.
1. Legend: A = Operable Sash, F = Fixed Pane
A1/A2 are casement sashes (triangle mark). The small dark block indicates handle position. F1–F5 are fixed glass units used for picture areas, sidelights, toplights, or split supports
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2.A1 vs A2: Mirrored Opening Direction
A1 and A2 are typically mirrored for left/right hinge direction. This supports symmetric airflow and consistent user operation. Specify hinge side and handle side early to avoid onsite changes.
3.Fixed Pane Roles (F1–F5)
Use fixed panes to enlarge the view area and control sightlines. They also support tall openings by splitting height. Fixed units can act as sidelights or toplights, depending on the grid.
4. Layout 1: Two Operable Sides + Large Center Fixed (Symmetric)
Pattern: A1+F2 | F1 | A2+F3. Two side sashes provide ventilation. The center fixed pane keeps the main view. Lower fixed panes help manage overall height and stiffness.
5.Layout 2: Side Fixed + Two Operable (With Lower Fixed) + Center Fixed (Wider Elevation)
Pattern: F1 | A1+F4 | F2 | A2+F5 | F3. Add side fixed panes to extend total width and keep symmetry. This fits large openings with a balanced façade rhythm.
6.Layout 3: Single Operable + Large Fixed (One-Side Ventilation)
Pattern: A1+F2 | F1. Put ventilation where the room needs it most. Use the large fixed pane for daylight and view. This option simplifies fabrication and cost control.
7.Layout 4: Toplight Fixed + Side Operable + Large Center Fixed
Pattern: F1 over A1 | F2 | A2 under F3. Top fixed panes create a stable header split and a cleaner elevation ratio. Side operable sashes keep airflow while the center stays fully fixed.
8.Size Constraints for Customization
Opening panel: width 350–750 mm, height 400–1500 mm.
Fixed pane: max area ≤ 12 m² per piece.
Final limits depend on glazing build (double vs triple pane windows) and hardware load.
9.Engineering Confirmation Before Release
Validate glass specification, wind load target, hardware bearing capacity, and installation method. This step is critical when planning large fixed panes or darker finishes (including double hung black windows styling requests).

Custom Opening Ways for Y103 Casement Windows
This diagram explains two configurable opening options for the Y103 series. Black lines show the closed frame. Red lines show sash movement after opening. Both options can pair with double or triple pane windows for multiple window styles for house plans.
Outward Opening (Open-Out Casement)
The sash is side-hinged and swings outward. It delivers a clear opening for airflow and keeps interior space unobstructed. It supports consistent detailing across modern casement windows and other window styles for house projects, including double or triple pane windows.
Awning (Top-Hinged)
The sash is top-hinged and tilts outward from the bottom. It enables ventilation with reduced rain entry and limits the opening range for safer use on higher floors. It fits bathrooms, kitchens, corridors, and any space needing controlled airflow.

Y103 Aluminum Casement Window for Double & Triple Pane Glazing
The DERCHI Y103 is an outward-opening aluminum alloy casement window, featuring 6063-T5 thermal break aluminum profiles with a 2.0 mm aluminum thickness and a 103 mm frame depth, meeting wind pressure resistance and energy-saving requirements. It is suitable for residential window renovations and modern casement window designs.
This window can be equipped with double or triple-pane tempered glass, with optional Low-E coating and argon gas filling. You can choose laminated glass, tinted glass, or reflective glass, select powder coating or PVDF coating (including a black option for easy comparison with black double-hung windows), add magnetic nylon screens, and choose security hardware such as a six-point locking system. We provide online technical support, and the delivery time is typically 25-35 days after drawing confirmation and deposit payment. A 10-year warranty is also provided.
Y103 Performance Advantages
Y103 supports energy, acoustic, and compliance targets in one casement platform. It fits common window styles for house projects, including elevations that mix modern casement windows with double hung casement windows or double hung black windows.

Energy-ready specification
Thermal break profiles paired with Low-E insulated glazing support project energy targets. Double or triple pane windows can be specified to align with Energy Star and NFRC documentation needs.

Sound control for busy sites
Double and triple pane insulated glass reduces noise transfer through the opening. This helps bedrooms, street-facing rooms, and multi-family corridors maintain a quieter indoor environment.

Wind-load reliability
A deeper system frame and higher-strength aluminum structure improve stability under wind pressure. This supports coastal, high-rise, and exposed façade conditions where deflection control matters.

Water and air management
Three sealing layers plus pressure-equalized drainage reduce water intrusion risk and limit air leakage paths. The approach supports consistent performance across variable weather and installation conditions.

Security-focused locking
A four-side, six-point locking option improves lock engagement and closing consistency. It increases resistance to prying attempts and reduces dependence on a single latch point.

Project compliance support
Certification coverage such as NFRC, CE, AS2047, CSA, and ISO9001 streamlines submittals and approvals. It also reduces friction during inspection, handover, and stakeholder sign-off.
Y103 Modern Casement Window Feature Set
Designed for modern casement windows and flexible window styles for house, Y103 supports double or triple pane windows, including black-frame options often searched as double hung black windows and double hung casement windows.
6063-T5 thermal break aluminum profile
Thermal barrier separates inner and outer metal, reducing heat transfer and condensation risk. Supports stable operation across temperature swings.
2.0mm aluminum wall thickness
Thicker aluminum sections improve frame rigidity, fastener holding, and long-term alignment for hardware and sash closure.
103mm frame depth system
Deeper frame depth supports insulated glass builds, improves structural support, and increases space for sealing and drainage design.
Outward-opening casement operation
Opens outward for ventilation control and easier interior clearance. Works well where interior space is limited by blinds, furniture, or trim.
Low-E double/triple glazing
Insulated glass plus Low-E coating reduces heat gain/loss and improves comfort. Triple pane windows add more noise reduction potential than standard double pane setups.
Argon & glass upgrade options
Argon fill helps limit fogging and supports thermal performance. Laminated glass increases safety and sound control; tinted or reflective glass supports glare and privacy targets.
Configure Your Triple Pane Casement Window
Build your project with triple pane windows or double pane Low-E setups, paired with a 103mm system frame and outward-opening operation. Send project drawings or rough openings to confirm configuration and lead time.
Y103 Performance Specifications
These metrics summarize how the Y103 performs on safety, water resistance, air leakage control, sound reduction, thermal efficiency (U-factor), and structural strength under wind load—useful when comparing triple pane windows, modern casement windows, and other window styles for house (including searches like double hung casement windows and double hung black windows).
U-Factor 0.27 BTU/(h·ft²·°F) (Level 9)
U-factor measures heat transfer through the window assembly. Lower U-factor supports better heat retention in winter and reduced heat gain in summer.
Wind Pressure Resistance: 5 kPa (Level 9)
Structural rating indicates resistance to deformation under wind load. Higher ratings support stability, sealing consistency, and durability in high-wind regions.
Six Lock Points: Safety
Multi-point locking uses six engagement points to resist prying, reduce sash warp under load, and keep sealing pressure more even around the frame.
Water Resistance: 550 Pa (Level 5)
Rated to resist water penetration under a 550 Pa pressure difference. Higher pressure ratings help reduce leak risk during wind-driven rain.
Air Tightness: 1.2 m³/(m·h) (Level 8)
Measures air leakage per meter of joint length per hour. Lower leakage supports comfort, limits drafts, and helps HVAC efficiency.
Sound Insulation: 35 dB (Level 4)
Sound reduction rating indicates how much outside noise is reduced. Pairing with insulated double or triple glazing can further support noise control.
Y103 Technical Specifications
This table summarizes the core parameters of the DERCHI Y103 open-out casement window, including profile structure, glass configurations (double or triple pane), hardware, sealing, finishes, lead time, and warranty for residential projects.
| Parameter | Details |
| Series / Model | Y103 Series Aluminum Casement Window |
| Brand | DERCHI |
| Opening Type | Casement (Open-Out) |
| Opening Pattern | Horizontal |
| Profile Material | Aluminum Alloy (6063-T5 extrusion) |
| Profile Type | Thermal break aluminum profile |
| Aluminum Thickness | 2.0 mm |
| Frame Depth | 103 mm |
| Glass Options | Low-E, reflective, laminated, tinted; double/triple tempered with argon gas |
| Typical IGU Spec | 5 mm + 27A + 5 mm |
| Glass Type (key attributes) | Low-E; double pane tempered clear; triple insulated; double tempered |
| Hardware | Germany WEHAG handle |
| Lock | Six-point lock |
| Sealing System | Exterior double sealing system |
| Screen | Magnetic screen option; nylon netting |
| Energy Star Qualified | Yes |
| Design Style | Modern |
| Application | House / Residential projects |
| After-sales Service | Online technical support |
| Warranty | 10 years quality warranty |
| Origin | Guangdong, China |
| Surface Treatment | Powder Coated / PVDF |
| Lead Time | 25–35 days after deposit & drawings confirmed |
Recommended Applications for Y103 Casement Windows
Y103 fits projects that need controlled ventilation, stronger sealing, and flexible glazing. It supports triple pane windows where noise and energy targets matter. It also works for modern casement windows in new builds and renovations.

Apartment
Use it for bedrooms, living rooms, and street-facing elevations.
Triple pane windows help reduce traffic noise and drafts.
The casement seal supports stable indoor comfort on higher floors.

Home Office
Use it where call clarity and focus are priorities.
Triple pane windows support quieter work zones and steadier temperatures.
A casement opening gives direct airflow during long work hours.

Hotel
Use it for guest rooms that need consistent comfort and low noise.
Specify double or triple glazing to match room class and climate.
Black finishes can align with “double hung black windows” design requests.

Office Building
Use it for private offices, meeting rooms, and perimeter zones.
The sealing structure supports HVAC efficiency and occupant comfort.
For buyers searching “double hung casement windows,” position this as a tighter-seal option.

Outdoor
Use it for balconies, terraces, and semi-exposed façades.
The open-out design supports ventilation without sacrificing closure pressure.
Pair with laminated or tinted upgrades when impact or glare control is required.

Residential building
Use it across common window styles for house layouts.
It suits kitchens, bathrooms, and living areas that need daily ventilation.
A black frame option supports modern exterior palettes and mixed window packages.




Why Choose DERCHI
DERCHI’s Y103 Aluminum Casement Window represents the strength of a global manufacturer with certified quality, advanced technology, and extensive market presence. Below are the key reasons customers worldwide choose DERCHI for triple pane windows, modern casement windows, and window styles for houses.
15+ Years of Experience
Proven expertise in aluminum window and door manufacturing.
Large Facility & Workforce
70,000 m² factory, 4,000 m² showroom, and over 600 employees.
High Production Capacity
Annual output of 400,000+ units, with 200,000+ successful installations.
International Certifications
Meets NFRC, CE, AS2047, CSA, and ISO9001 certification standards.
Strict Quality Inspection
Every product undergoes comprehensive quality checks before shipment.
Dedicated R&D Team
Over 20 professionals driving continuous product innovation.
Robust Intellectual Property
Holds over 100 national patents including inventions, designs, and appearances.
Industry Recognitions
Recipient of more than 50 prestigious industry awards.
Global Distributor Network
Over 700 distributors serving customers in 100+ countries.
One-Stop Service
Complete support from ordering through final delivery.
Certifications & Patents
View DERCHI certifications (NFRC, CE, AS2047, CSA, ISO9001) and patent highlights to streamline qualification, tender documents, and compliance reviews.












Hardware Options
Choose hardware built for Y103 open-out operation. Each option supports stable sash movement, consistent locking action, and daily usability for double and triple pane window configurations.



Project Case Studies
See completed projects using Y103 casement windows, including photos, configurations, and performance benchmarks for energy, sound, and weather sealing.
Villa Project Case in Colorado, USA
Project address:209 river ridge dr grand junction colorado 81503
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New York Apartment Project, USA
This is a project for DERCHI Windows and Doors in an apartment in New York. Enough to shock builders all over the world.
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USA Georgia Villa Aluminum Windows And Doors Project
This project is for a Georgian villa in the United States. Our main products include sliding doors, fixed windows, folding doors, and French doors.Why do Americans love using doors as windows?
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Villa Project in Las Vegas, USA
This is a villa project of Guangdong Dejiyoupin Doors and Windows (Derchi) in Las Vegas, USA. The main products used are aluminum entry doors, aluminum slide doors, and aluminum glass fixed windows.
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USA Los Angeles 4242 Villa Aluminum Windows And Doors Project
Local Dealers and Popular Brands in Los AngelesDejiyoupin(Derchi) Windows and Doors in Los Angeles offers a wide selection of premium brands and emphasizes professional installation, energy efficiency, and soundproofing. Customer testimonials highlight their reliability and quality serviceDejiyoupin
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USA Los Angeles 4430 Villa Aluminum Windows And Doors Project
I think the American people living in Los Angeles will be familiar with Villa 4430. As a high-end villa complex, do you know that the aluminum doors and windows inside are all produced by Dejiyoupin Doors and Windows?
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USA California Villa Project
Visual Effects in a California VillaThe use of Guangdong Dejiju's folding doors and casement windows would significantly enhance the aesthetic and experiential quality of a California villa, aligning perfectly with the region's iconic architectural style.
/ Read MoreRelated Product Lineup
Discover related DERCHI systems that pair with Y103—sliding doors, folding doors, and other window styles—ideal for consistent aesthetics and supply chain alignment.