Our double glazed casement windows for thermal insulation use factory-sealed insulated glass units: 5mm 20A 5mm tempered glass with warm-edge spacer and optional argon fill. This configuration dramatically reduces heat transfer, keeping interiors cool while lowering energy bills. The thermal break casement window frame incorporates polyamide strips that cut thermal bridging, making it the ideal solution for tropical climates and high-humidity zones. Every casement window in the 112 series is engineered to achieve U‑values as low as 1.6 W/m²K, outperforming standard single-glazed alternatives.
Thanks to the robust 5mm 20A 5mm tempered glass, sound insulation is also increased — external noise is reduced by up to 32 dB, ensuring peaceful indoor environments. Combined with the inward opening casement design, cleaning and maintenance become effortless from inside the room. Whether you need a thermal break casement window for a residential villa or a commercial façade, this system delivers consistent energy savings.
The 112 profile combines a premium inward opening casement on the left with a robust swing door on the right, merging ventilation and access in one unified frame. Ideal for balconies, terraces, or room partitions, the inward opening casement allows easy cleaning and secure night ventilation, while the swing door provides wide passage for furniture or daily convenience. Both units share the same 112mm depth, ensuring visual coherence and saving installation costs by eliminating separate supports.
When paired together, the thermal break casement window and the swing door can be color-matched with the same high-security hardware. The swing door features multi-point locking, while the casement section includes independent locks for the main sash and insect screen.
Unlike conventional keyed locks, our flyscreen handle features a small push-button knob that locks or releases the mesh screen. Simply push the button upward to lock the screen against the frame (cannot be opened from outside), or push it downward to unlock for cleaning. This tool-less, keyless design is child-safe and user-friendly. The casement window screen remains burglar-resistant when locked, while the main window lock operates independently. The mosquito screen is made of high-density fiberglass or stainless steel mesh.
Optional burglar grilles (removable or fixed) are available for both the inward opening casement and swing door, with quick-release mechanisms that do not block emergency exits. For curved architectural projects, the window frame can be made into an arched or radius shape.
✅ No key required — easy operation for elders/kids
✅ Push-button lock effectively secures the screen sash
✅ Curved/radius casement available upon request
Our high-grade aluminum profiles feature integrated polyamide thermal barriers, creating a true thermal break casement window. This technology prevents condensation, reduces heat conduction, and keeps indoor temperatures stable. When combined with 5mm 20A 5mm tempered glass, insulation performance far surpasses conventional aluminum frames. Every inward opening casement ensures even weatherstripping compression, eliminating air leakage.
The 112 series qualifies for green building credits, as the thermal break casement window and double glazing form a strong barrier against solar radiation. An outward opening version is also available upon request. The right swing door includes the same thermal break profile and low-E glass options.
| Product name | 112 series double glazed casement windows for thermal insulation |
| Opening type | Left: inward opening casement | Right: swing door |
| Glass unit | 5mm 20A 5mm tempered glass (argon filled optional) |
| Thermal performance | thermal break casement window with 32mm polyamide strip |
| Frame depth | 112mm (window + door unified) |
| Screen lock type | Push-button / knob lock (no key, up/down sliding knob) |
| Accessories | Insect screen, anti-theft grille, curved frame option |
| Standard finish | Powder coating / anodized (custom RAL) |
The above data confirms that every casement window delivery follows strict quality control. Combining the inward opening casement with a swing door provides the most flexible solution for home extensions, storefronts, and resort villas. The 5mm 20A 5mm tempered glass is further tested for impact resistance, ensuring safety for tropical storms.
Energy savings
Double glazed casement windows for thermal insulation reduce heat gain by 55% compared to single glazing. The thermal break casement window construction makes every room comfortable year-round.
Anti-mosquito & safe
Integrated screen with push-button lock, no key needed. The insect screen can be independently locked via small sliding knob — exclusive to this casement window line.
Easy cleaning
Inward opening casement design: you can wipe the exterior glass from inside. The swing door also has a sturdy hinge system for maintenance.
Customization
Arched window (curved/radius shape), optional removable grilles, multiple colors. The 5mm 20A 5mm tempered glass is standard but can be upgraded to laminated safety glass.
The swing door on the right side uses heavy-duty stainless steel hinges and a multi-point locking system. When both the inward opening casement and the swing door are closed, the profile creates a continuous look. Our factory also supplies curved/radius casement window profiles for arch-top designs — suitable for unique architectural statements.
The right unit of the 112 system is a purpose-built swing door for high-frequency use and heavy loads. It features a 70mm threshold, adjustable hinges, and a multi-point locking handle, supporting a leaf up to 1000mm wide and 80 kg. Unlike a standard casement window, this swing door shares the same 112mm frame depth and thermal break casement window insulation, and can be fitted with 5mm 20A 5mm tempered glass to prevent thermal leakage. The left casement window paired with the right swing door creates a unified facade, reducing installation joints and improving weather resistance. All hardware is tested to 200,000 cycles, suitable for commercial or intensive residential use.
When combined with an inward opening casement, the swing door allows large airflow across the room. For insect protection and security, a retractable or hinged screen door with a push-button lock (no key) is available. Coastal clients appreciate the corrosion resistance of the anodized finish on both the thermal break casement window and the swing door.
l Curved/Radius frame – arched top casement window and swing door available.
l Burglar grille – internal removable grille design (fits both casement window and swing door).
l Solar control film – laminated on 5mm 20A 5mm tempered glass to further improve thermal insulation.
l Color options – wood grain, matte black, white, or custom RAL.
l Outward opening variant – if you prefer outward instead of inward opening casement, please specify.
The thermal break casement window system combined with 5mm 20A 5mm tempered glass ensures longevity of at least 20 years. For urgent project inquiries, our team provides CAD drawings and installation guidelines.
