A 5 lite casement window is a DERCHI custom thermal-break aluminum divided lite system. The 5-lite designation refers to a divided lite style rather than fixed dimensions, allowing each lite to serve as fixed glazing, ventilation sash, inward screen, or safety guard. The primary recommended series is the S9 Starlight System.
- Divided lite flexibility for center landscape glass with side openings
- Thermal-break multi-cavity aluminum profile with 44mm insulation strip
- Outward opening with inward screen for ventilation and insect protection
- Three-tier series system (S9, S6, E0) to match different project budgets
Product Details
The S9 Starlight System serves as the primary series, built with a 109mm frame width, 1.8mm wall thickness, and a 44/24/15mm multi-insulation strip configuration. Standard glazing is 5+27A+5 fluorocarbon insulated aluminum spacer glass. The structure uses a three-seal design with EPDM water-swelling weatherstripping, a micro-elastic glass block to reduce corner stress, and a frame-sash same-horizontal-line alignment for clean architectural aesthetics.
Buyers can configure each of the five lites independently as fixed, opening, screen, or guard. The S9 supports outward opening, top-hung, and outward-opening top-hung operations, with the glass sash opening outward and the screen sash opening inward. For different project tiers, the S6 (82mm frame, invisible folding screen) and E0 (100mm frame, value-oriented) series offer alternate cost-performance options. Buyers should confirm exact overall window dimensions and installation conditions with the supplier.
Product Features
- 44mm Extra-Wide Insulation Strip: Reduces U-value and supports thermal insulation requirements, helping projects meet energy compliance targets with verified 2.0W Level 6 performance.
- Multi-Cavity Aluminum Profile: Built with 1.8mm wall thickness for structural integrity, providing a sturdy frame that handles large divided lite openings up to 6 sqm of fixed glass.
- Three-Seal Structure: Combined with EPDM water-swelling weatherstripping, it delivers verified air tightness and water tightness for exposed residential environments.
- Micro-Elastic Glass Block: Minimizes glass corner stress during operation and wind load, protecting the glazing edge and extending service life of the sealed units.
- Divided Lite Flexibility: Each of the five lites can be independently configured as fixed glazing, ventilation sash, inward screen, or safety guard to match architectural layouts.
- Safety Hardware Suite: Includes a custom child-safe handle, anti-pull angled transmission box, two-point lock, and anti-pry keeper to address household security and child safety concerns.
Customizable Styles
- Glass Options: Standard 5+27A+5 double tempered glass; custom options include argon gas, Low-E, laminated, frosted, tinted, ultra-clear, and built-in blind glass.
- Color and Finish: Available in Sand Gray, Dark Coffee, Black Crystal, Starry Black, White, Black Walnut, Fluorocarbon Flash Silver, Indigo Gray, plus extended E5N card colors.
- Size Range: Casement opening sash spans 400-750mm wide by 400-1500mm high; top-hung spans 510-750mm wide by 700-1500mm high; max fixed glass is 6 sqm.
- Opening Combinations: Configure as single sash, double sash, fixed center with side openings, three-segment, upper transom, or left-right asymmetric layouts.
- Divided Lite Patterns: Default 5-lite layout with verified alternatives including 4-lite, 6-pane, multi-lite window wall, slanted/trapezoidal, and hexagonal/bay combinations.
Hardware Accessories
- Handle Options: DERCHI custom child-safe handle standard; optional fingerprint, password, or keyed handle for upgraded access control requirements.
- Hinges: Features a 13-inch casement friction hinge and custom load-bearing hinge to manage outward sash weight and operation control.
- Locking System: Includes a two-point lock, roller sleeve lock point, and anti-pry lock keeper for forced-entry resistance and secure closure.
- Transmission Box: Equipped with an anti-pull angled transmission box to protect the internal hardware mechanism from manipulation or pull-out attacks.
- Screens and Guards: Optional 48-mesh high-transparency screen, steel wire mesh, protective guardrail, and built-in blinds; S6 series offers invisible folding screen.
Basic Parameters
| Performance Item | Available Information | Buyer Notes |
|---|---|---|
| Thermal Insulation | 2.0W, Level 6 | Confirm exact U-value and whether Low-E or argon gas is required for target performance. |
| Wind Pressure Resistance | 5kPa, Level 9 | Confirm suitability for specific project wind zone and local building code requirements. |
| Water Tightness | 700Pa, Level 6 | Verify performance applies to the specific 5-lite configuration and glass size ordered. |
| Air Tightness | 1.2, Level 8 | Confirm test standard and applicability to project location climate requirements. |
| Sound Insulation | 35dB, Level 4 | Confirm whether rating applies to standard glass or requires upgraded laminated configuration. |
Product Specifications
| Specification | S9 Starlight System (Primary) | S6 Star Sea / E0 Glory (Alternates) |
|---|---|---|
| Product Type | Thermal-break aluminum outward casement window | Thermal-break aluminum outward casement window |
| Frame Width | 109mm | S6: 82mm / E0: 100mm |
| Wall Thickness | 1.8mm | 1.8mm |
| Insulation Strip | 44/24/15mm multi-strip | S6: 35/14.8/30mm / E0: 35/30/12mm |
| Standard Glass | 5+27A+5 fluorocarbon insulated aluminum spacer | 5+27A+5 fluorocarbon insulated aluminum spacer |
| Opening Modes | Outward, top-hung, outward-opening top-hung | Outward, top-hung, outward-opening top-hung |
| Screen Type | Inward opening screen | S6: Invisible folding / E0: Inward opening |
| Handle Type | DERCHI custom child-safe handle | S6: WEHAG baseless handle |
| Max Fixed Glass | 6 sqm | 6 sqm |
| Certifications | CE / NFRC / CSA, US/AU IGCC glass certifications | Confirm which certifications apply to selected series |
| Customization | Custom sizes, colors, glass, and structural combinations | Custom sizes, colors, glass, and structural combinations |
| Packaging | Four-layer protection: anti-scratch film, pearl cotton, waterproof film, wooden rack | PE seawater-proof film and air bag isolation for export |
| Notes | Confirm warranty, weight per sqm, and installation documentation | Confirm lead time and production capacity for bulk orders |
Advantages
- Verified Performance Ratings: Backed by Level 6-9 ratings across water, air, sound, thermal, and wind parameters, with CE, NFRC, and CSA certifications for international project compliance.
- Thermal Engineering Design: Features a 44mm insulation strip, multi-cavity profile, three-seal structure, and EPDM weatherstripping to support energy efficiency and reduce heating loss.
- Divided Lite Flexibility: Each lite configures independently as fixed, opening, screen, or guard, offering 15+ color options and structural combinations including angled and bay windows.
- Comprehensive Safety Suite: Equipped with a child-safe handle, anti-pull transmission, two-point lock, and anti-pry keeper, plus optional guardrail and safety screen additions.
- B2B Project Support: As a 5 lite casement window supplier, DERCHI offers custom sizes, low MOQ, door-to-door or port delivery, and four-layer export packaging across three budget tiers.
Application Scenarios
- Apartment: Outward-opening operation saves interior space, while the divided lite layout brings structured natural light to living rooms and bedrooms without occupying floor area.
- Home Office: Sound insulation rated at 35dB helps reduce street noise, creating a quieter remote work environment when configured with standard or upgraded laminated glass.
- Hotel: The S9 series delivers a clean architectural facade with center landscape glass and side ventilation, supporting guest comfort and modern exterior design standards.
- Office Building: A commercial 5 lite casement window configuration allows large multi-sash window walls that meet wind pressure and air tightness needs for mid-rise facades.
- Outdoor: Buyers should confirm water tightness, wind pressure ratings, and surface finish durability against local weather exposure before specifying outdoor or exposed installations.
- Residential Building: The E0 series provides budget-sensitive thermal-break double glazing for bulk residential developments requiring affordable energy compliance and basic soundproofing.
- Exterior: Frame and sash alignment on the same horizontal line creates a flush exterior appearance; verify fluorocarbon or powder coating finish suitability for local UV conditions.
- Villa: The S9 system supports special shapes like hexagonal and bay windows, allowing custom per-lite configurations that match high-end architectural requirements and interior design.
Inquiry Guidance
To request a quote, please share your project location, required size, quantity, preferred frame color, glass type, hardware requirements, and drawings or reference photos if available.
FAQ
What does the 5-lite designation mean for this window?
The 5-lite designation refers to a divided lite style, not a fixed width or height. Each of the five lites can be independently configured as fixed glazing, ventilation sash, inward screen, or safety guard.
Which series should I choose for my project?
S9 is the high-end 109mm system for modern residences; S6 offers an 82mm invisible folding screen for mid-high cost-performance; E0 is a 100mm value series for budget-sensitive bulk residential projects.
What information is needed to get an accurate quote?
Provide series choice, per-lite configuration, glass type, color/finish, hardware, screen, size drawings, quantity, destination port, and packaging requirements for a precise quotation.
Can each lite in the window be configured differently?
Yes, each lite can be set as fixed glazing, openable ventilation sash, inward screen sash, or safety guard. Common layouts include center landscape glass with side ventilation openings.
What certifications are available for this product?
DERCHI emphasizes CE, NFRC, CSA, and US/AU IGCC glass certifications. Buyers should confirm which specific certifications apply to the selected series and configuration for their target market.
What is the minimum order quantity and delivery time?
Platform data shows a common MOQ of approximately 2 square meters and delivery around 25-35 days. These are reference values; confirm exact MOQ and lead time with the supplier.
What should buyers confirm before ordering?
Confirm exact overall dimensions, U-value/SHGC for your glass choice, warranty terms, installation conditions, jamb options, and weight per square meter for structural load calculations before production.
