Foshan AMJ Windows and Doors Co., Ltd. 
Energy Efficient Casement Windows for Homes and Larger Openings
These energy efficient casement windows combine a 78.3mm frame, 35.3mm thermal break, 1.8mm aluminum profile, Low-E insulated glass, and German G-U hardware. The deeper frame supports insulated glass up to 47mm for projects that need more glazing capacity than the standard casement system.
The outward-opening sash provides full ventilation without using interior space. These modern casement windows suit custom homes, apartments, townhouses, villas, light commercial buildings, and large casement windows that require engineering review.
Why Choose These Energy Efficient Casement Windows?
The deeper frame and wider thermal break give builders more room for insulated glass, larger engineered sashes, and higher-performance residential or light commercial window packages.
Deeper 78.3mm Frame
The deeper wall profile provides more space for insulation and thicker glazing, making the system a stronger fit for demanding residential and light commercial work.
Wider 35.3mm Thermal Break
A wider separation between the interior and exterior aluminum sections helps reduce direct heat transfer through the frame.
Up to 47mm Glass Capacity
The frame accepts thicker insulated glass units than the standard casement system, giving specifiers more flexibility for energy and sound-control requirements.
Low-E Double or Triple Glazing
Standard Low-E argon-filled double glazing is available with a 20mm cavity for double glazed casement windows, while triple glazing can be selected for higher-performance project packages.
German G-U Hardware
German G-U hardware supports smooth outward opening and dependable locking. HK Kinlong hardware is also available in black or white.
Larger Engineered Sash Options
Standard and larger sash configurations are available, including large casement windows up to 1000mm wide, 2500mm high, and 100kg after technical review.
Improved Acoustic Reference
The latest specification lists approximately 37dB sound insulation, helping reduce outside noise in homes, apartments, and light commercial buildings.
Flexible Project Integration
Single openings, fixed combinations, 90° and 135° corners, nail fin, mounting tabs, and a pleated retractable screen can be selected to match the project.
Casement Window Operation Video
See how the side-hinged sash opens outward, closes, and locks during normal operation.
Custom Casement Window Sizes, Glass and Project Options
Send a window schedule, BOQ, rough opening sizes, or architectural drawings so casement window sizes, glass package, hardware, screen, and installation details can be reviewed before production.
Glass, Hardware and Design Options
- Insulated glass: 5mm Low-E + 20mm argon + 5mm tempered clear glass.
- Triple glazing: 5mm Low-E + 12mm argon + 5mm + 12mm argon + 5mm.
- Glass capacity: insulated glass units up to 47mm.
- Project sizing: standard sashes from 450–700mm wide and 500–1500mm high; larger engineered options from 700–1000mm wide and 600–2500mm high, subject to hardware and engineering review.
- Hardware: German G-U or HK Kinlong in black or white.
- Screen option: pleated retractable accordion insect screen.
- Window layouts: single opening, opening with fixed panel, fixed window, and 90° or 135° corner combinations.
Performance for Higher-Insulation Projects
- Reference U-Factor: 0.21 BTU/(h·ft²·°F), subject to the final glass configuration and applicable test report.
- Low air leakage: reference value of 0.05 L/s·m².
- Water resistance: reference water penetration resistance of 220Pa.
- Wind pressure: reference resistance up to 2160Pa for properly engineered units.
- Sound control: reference acoustic performance of approximately 37dB.
- Deeper glazing platform: the 78.3mm frame and 35.3mm thermal break support insulated glass units up to 47mm.
Which Thermal Break Casement Window Fits Your Project?
Both systems use 1.8mm aluminum profiles and outward-opening operation. The high-insulation option adds a deeper frame, wider thermal break, and greater glass capacity.
Standard Thermal Break Casement Window
A practical option for standard residential and cost-controlled project packages.
Best for homes, apartments, townhouses, and light commercial projects that need reliable thermal break construction with controlled overall cost.
High-Insulation Aluminum Casement Window
A deeper-frame system for thicker glazing, colder climates, and higher-performance specifications.
Best for projects that prioritize a wider thermal break, lower heat-transfer reference, greater insulated glass capacity, and improved acoustic control.
Our Strength
1. Checking & Alignment
2. Cutting & Punching
3. Milling Holes
4. Assembly
5. Glass Assembly
6. Packaging
7. Delivery
8. Installation
Drawing & Engineering Review
Sample Support
Quality Inspection
U.S. Showrooms
48-Hour On-Site Support
Warranty Service
NFRC
CSA
ENERGY STAR
INTERTEK
Frequently Asked Questions
When should I choose energy efficient casement windows with a deeper frame?
Choose this system when the project needs a 78.3mm frame, 35.3mm thermal break, insulated glass up to 47mm, or larger engineered sash options than the standard casement system.
What is the minimum order quantity?
We offer flexible MOQs. You can order sample sets for evaluation, and we provide competitive tiered pricing for full container load (FCL) project orders.
Can custom casement windows use double or triple glazing?
Yes. Double or triple glazing, sash sizes, fixed panels, opening layouts, colors, hardware, screens, and installation options can be customized. Larger sashes require engineering review.
What information should I send for a quotation?
Send drawings, rough opening sizes, BOQ or a window schedule, quantity, project location, preferred glass, color, screen option, and required delivery time to info@amjbm.com.
What are the typical lead time and warranty?
Standard production can start from approximately 25 days after drawing and material approval. Larger customized projects commonly require 30–55 days. Warranty coverage up to 15 years, with longer terms available for selected projects
Start Your Energy Efficient Casement Window Project
Send your drawings, BOQ, window schedule, or rough opening sizes for glass selection, configuration review, and project pricing.
