





Aluminium windows at Build It are aluminium casement windows with an outward opening / awning configuration, meeting NFRC, AS2047, and CE standards with additional testing and certification available upon request. They are for buyers sourcing window systems that require these compliance standards.
- 200,000+ successful cases and trade relationships with customers in more than 100 countries
- 100% full inspection before shipment with one-stop customer service from ordering to shipment
- Engineering and supervising service provided to guide installation
Product Details
The aluminium casement window is built with a 1.8mm aluminum profile at 118mm frame width, incorporating a DERCHI S18 multi-cavity insulation strip and double tempered argon glass (5mm+27A+5mm) with a PVDF aluminum strip between panes. WEHAG hardware includes a black or silver handle, hinge, and a black six-point lock with an invention patent, operating via outward opening or awning action. The production process runs through surface treatment, profile processing and cutting, glass cutting and aluminum strip installation, opening panel installation, frame and casing assembly, troubleshooting and sealing, and packing, with the factory supplying the complete window system including profile, hardware, accessories, glass, and finished products ready for installation.
Seven glass configurations, ten layout configurations, two PVDF color options, and ten stock finishes are available. Procurement teams should confirm opening direction, glass type for privacy versus solar control, and finish color matching to project design before specifying. Delivery runs 25-35 days after deposit and drawing confirmation, with a 10-year quality warranty covering frame unfading and hardware operation under correct use, plus engineering and supervising service to guide installation. Retail aluminium window channels position standard-size windows with hardware as separate line items and no visible MOQ, lead time, or certification data on category pages. This window is configured per project with confirmed drawings, delivery timelines, and warranty terms.
Product Features
- WY-118L aluminum casement window with 1.8mm profile thickness and 118mm frame width — sets the structural profile dimension that determines compatible wall opening depth and glazing capacity.
- Outward opening / awning operating mode — informs whether the installation location has exterior clearance for the sash swing path.
- WEHAG handle available in black and silver finishes — defines the two hardware color options to coordinate with the selected frame finish.
- Black six-point lock with invention patent — specifies the security locking mechanism level for the window schedule.
- DERCHI S18 multi-cavity insulation strip — determines the thermal break configuration for energy performance selection.
- Double tempered glass with argon gas — sets the glazing specification for safety rating and thermal insulation requirements.
- PVDF coating as color finish — defines the surface treatment option for exterior weathering resistance.
- Water tightness 700Pa, air tightness 1.2 m³/(m·h), wind pressure resistance 5 kPa, and sound insulation 35 dB — these ratings inform compliance matching against project building code thresholds.
- U-factor 0.23 and SHGC 0.20 — guide energy-code compliance selection for the project's thermal performance requirements.
- Price based on buyer's specific requirement including shop drawing, frame color, glass type/thickness/color, and argon option — confirms that final specification inputs drive the quoted price.
Customizable Styles
- Color finishes: two PVDF options (Retro Green, Mint Gold) and ten stock color options including wood-grain, solid metallic, and matte finishes.
- Glass configurations: seven options available — single, tempered, double-glazed, triple, insulating, laminated, and frosted.
- Layout configurations: ten customizable options including fixed panels, casement sashes, and awning openings.
- Opening way: outward opening or awning.
- Handle: WEHAG handle in Black or Silver.
- Optional package: New 48 Pack or New 88 Pack.
- Default glass specification: double tempered glass with argon gas (5mm+27A+5mm) with PVDF aluminum strip between double glass.
Hardware Accessories
- WEHAG handle in black and silver finishes — the hardware specification for compatibility review
- WEHAG standard no-base handle in black, silver, and antique bronze finishes
- WEHAG hinge
- Black Six Point Lock with invention patent
- DERCHI independently developed 13-inch flat-opening friction hinge
- DERCHI customized handle designs for WY-118L series
- WEHAG lock point and lock seat system works with six-point locking mechanism
- DERCHI transmission box
- Window system supplied as complete package including profile, hardware, accessories, glass, and finished products ready for installation
- 10-year quality warranty covers hardware and accessories working properly under correct operation
- Handle finish and customized handle designs require project-specific confirmation before specification
Basic Parameters
| Performance Dimension | Product Value | Meaning & Test Method | Evidence to Request |
|---|---|---|---|
| Thermal Insulation | U-factor 0.23; SHGC 0.20; Standard DERCHI insulation strip | Thermal performance is compared using the declared rating, test method, specimen configuration, and project boundary conditions. | Request the applicable thermal test or simulation report and the declared product configuration (NFRC, ISO 10077-2). |
| Wind Pressure Resistance | 5K Pa | Wind pressure resistance is reviewed against the specified test pressure, specimen size, anchorage, and acceptance criteria. | Request the wind-pressure test report and confirm the tested specimen and installation conditions (ASTM E06.51, FGIA NAFS, ISO 6613). |
| Water Tightness | 700Pa | Water tightness is reviewed against the test pressure, spray exposure, specimen configuration, and leakage criteria. | Request the water-penetration test report and confirm the tested pressure and assembly configuration (ASTM E06.51, FGIA NAFS, ISO 6613). |
| Air Tightness | 1.2 m³/(m·h) | Air tightness is reviewed against the pressure differential, specimen area, reporting units, and tested configuration. | Request the air-leakage test report and confirm its pressure and specimen configuration (ASTM E06.51, FGIA NAFS, ISO 6613). |
| Sound Insulation | 35 dB | Sound insulation is compared using the stated laboratory method, specimen construction, glazing, and reported acoustic metric. | Request the acoustic test report and confirm that the tested construction matches the proposed configuration (ISO 10140-1, ASTM E90). |
Product Specifications
| Specification | Value |
|---|---|
| Glass | Double Tempered Glass with argon gas 5mm+27A+5mm, PVDF Aluminum Strip between double glass |
| Profile Thickness | 1.8MM |
| Frame Width | 118MM |
| Handle | WEHAG Handle in Black and Silver |
| Hinge | WEHAG Hinge |
| Lock Point | Black Six Point Lock (Invention patent) |
| Insulation Strip | Standard DERCHI insulation strip |
| Opening Way | Outward Opening / Awning |
| Optional Package | New 48 Pack / New 88 Pack |
| Delivery Time | 25-35 days after deposit and drawing confirmed |
| Warranty | 10 years quality warranty |
- Opening dimensions (width × height) for each window unit
- Glass configuration selection from available options including single, tempered, double-glazed, triple, insulating, laminated, and frosted
- Color finish selection from PVDF options (Retro Green, Mint Gold) and stock color options including wood-grain, solid metallic, and matte finishes
- Layout configuration selection from available fixed panel, casement sash, and awning opening options
- Opening direction (Left or Right) for each operable unit
- Approved shop drawings for production confirmation
- Deposit payment to initiate production
Advantages
- 15+ years of experience in aluminum windows and doors manufacturing.
- 70,000+ m² factory area with 4,000 m² showroom and 600+ employees, producing 600,000+ m² annual output.
- 200,000+ successful project cases delivered.
- 100% full inspection before shipment.
- Authorized by NFRC, CE, AS2047, CSA, and ISO9001, with additional product testing and certification available upon buyer request.
- OEM/ODM capability with pricing based on buyer's specific requirements including drawings, dimensions, color, and glass type.
- Can supply window system (profile, hardware, accessories, glass) or finished products.
- Engineering and supervising service provided to guide installation.
- One-stop customer service from ordering to shipment.
- 10 years quality warranty.
- 20+ experts R&D team with 100+ national patents.
- 700+ distributors with trade in 100+ countries.
Application Scenarios
| Scenario | Fit Basis | Confirm Before Specification |
|---|---|---|
| Coastal or high-precipitation commercial buildings | Aluminium frame material for exterior exposure in corrosive coastal climates; casement closure compresses perimeter seal against wind-driven rain | Alloy grade and anodised or powder-coated finish suitability for salt-air exposure, friction-stay corrosion resistance, and perimeter gasket compatibility |
| High-rise commercial structures | Aluminium frame rigidity for multi-storey commercial facades; casement sash secured by friction stays and locking hardware for elevated wind exposure | Sash size limits at the specified floor level, friction-stay suitability for wind load at height, and structural anchoring method for the wall type |
| Buildings near traffic corridors | Aluminium frame rigidity supports acoustic glazing packages; casement perimeter seal compression when closed limits air infiltration paths | Acoustic glazing unit compatibility with the sash rebate, perimeter seal compression quality, and sash operation clearance for the opening |
| Energy-efficient commercial facilities | Aluminium frame compatible with thermal-break profile construction; casement compression seal limits perimeter air leakage | Thermal-break profile availability for the selected frame, glazing package thermal performance, and perimeter seal continuity around the frame |
| Apartments and residential buildings | Aluminium frame durability for occupied residential use; casement operation provides controlled ventilation for living spaces | Egress compliance for the occupancy type, safety glazing requirements, and child-safety restrictor compatibility with the friction-stay hardware |
| Office buildings | Aluminium frame suited for repeated daily operation in commercial occupancy; casement sash allows controlled natural ventilation | Facade opening dimensions, sash operation clearance, and finish match with adjacent facade materials |
| Hotels | Aluminium frame finish options for guest-area aesthetics; casement closure provides acoustic and weather separation at the perimeter | Safety glazing grade for guest rooms, acoustic glazing compatibility with the sash, and finish durability for hospitality cleaning routines |
| Home offices | Aluminium frame low-maintenance for residential interior use; casement operation for room ventilation and daylight access | Sash opening direction relative to interior layout, glazing light transmission for the workspace, and friction-stay hold-open position for ventilation control |
| Villa projects | Aluminium casement design for exterior villa facades; frame finish options for architectural style coordination | Architectural style alignment, exterior finish selection, and sizing schedule for the villa openings |
| Whole house customization projects | Aluminium casement system applied across multiple opening types for finish and hardware consistency | Quantity schedule across all openings, finish consistency, and hardware standardization for the project |
FAQ
What must be confirmed technically before ordering aluminium windows?
Pricing is based on buyer's specific requirements including drawings, dimensions, color, and glass type. The supply can be configured as a complete window system (profile, hardware, accessories, glass) or as finished products. Opening direction—left-hand or right-hand—must be specified as a configuration choice before fabrication.
What should buyers prepare for volume procurement?
Buyers should prepare project drawings, dimension schedules, color specifications, and glass type requirements to receive accurate project pricing. A one-stop service from ordering to shipment is available for volume orders. Every unit undergoes 100% full inspection before shipment, and additional product testing and certification can be arranged upon buyer request.
Which test reports or certification documents must be confirmed for the project?
Additional product testing and certification are available upon buyer request. Buyers should specify required certification standards and test report formats at the quotation stage for compliance scope confirmation.
How is the opening direction determined for casement windows?
Opening direction—left-hand or right-hand—must be selected based on wall configuration and ventilation requirements for each window opening. This configuration choice must be confirmed before fabrication begins.
What glass options are available for privacy areas?
Obscure glass can be specified for privacy areas such as bathrooms and side lights. Glass type should be selected based on privacy, visibility, and solar control requirements at the quotation stage.
Are handles and hardware included with the window system?
The window system supply option includes profile, hardware, accessories, and glass as a complete package. Buyers should confirm whether they require the full system or finished products at quotation.
What profile thickness applies to aluminium window configurations?
A 26mm profile thickness is standard for aluminium window units. A 30.5mm profile thickness applies to sidelight configurations. Profile selection should be matched to the structural opening and performance requirements.
Is installation support available?
Engineering and supervising service for installation is available. Buyers should confirm whether site supervision or installation engineering support is required for the project scope.

