
Professional Outward Casement Windows
Consider the exceptional functionality of DERCHI's R8Y outward casement windows. Featuring premium casement window hardware with smooth crank operation, these custom casement windows offer expansive glass panels that maximize natural light, enhance cross-ventilation, and create a sleek architectural statement. Explore our customizable options including durable aluminum frames, energy-efficient glazing, and weather-resistant finishes tailored to your specifications.












The R8Y Outward Casement Window delivers superior ventilation performance with precision-engineered casement window hardware that embodies contemporary architectural excellence. These custom casement windows can be configured individually or paired with fixed panels and sliding systems for enhanced design flexibility.
100% waterproof and anti pinch
CE /NFRC Standard Certification
US/ AU IGCC Standard Glass Certification
100% thermal insulation/windproof/ soundproof

Description
Videos
Customizable Styles
Hardware Accessories
Advantages
Certificate
Experience the Versatility of Our Custom Casement Windows
Discover the innovative design and seamless operation of our outward casement windows. This video showcases their dual-functionality, opening from the top for secure ventilation and swinging fully outward for maximum airflow and an unobstructed view. See how our high-quality casement window hardware and custom designs can elevate your space.
Complete Customization Options for R8Y Outward Casement Windows
Transform your architectural vision into reality with DERCHI's comprehensive customization program for outward casement windows. Our custom casement windows offer unlimited possibilities through three key customization categories: premium color finishes, flexible size configurations, and diverse style options. Each casement window is manufactured to exact specifications, ensuring perfect integration with your building design while maintaining optimal functionality of all casement window hardware. From residential renovations to commercial projects, these customization options deliver personalized solutions that enhance both aesthetics and performance.

Color Customization
DERCHI R8Y outward casement windows offer twelve distinctive color finishes through advanced coating technologies. These custom casement windows provide extensive personalization options to complement any architectural design while protecting casement window hardware.
Available Color Options:
> Natural Wood Tones: Two authentic wood-effect finishes - Black Walnut and Huanghua Pear - featuring realistic grain patterns without maintenance requirements
> Contemporary Metallics: Four modern metallic options - Mint Gold, Quartz Gray, Starry Sky Black, and Black Crystal Stone - providing sophisticated reflective surfaces for modern architecture
> Classic Solid Colors: Six timeless finishes - Retro Green, Black Skin, Caramel Coffee, Deep Sea Blue, Deep Coffee, and Pearl White - offering versatile solutions for traditional and contemporary buildings
These color customization options enable homeowners and designers to specify outward casement window finishes that enhance building aesthetics while ensuring long-term durability and weather resistance across all applications.

Size Customization
DERCHI R8Y outward casement windows offer flexible size configurations to fit various architectural openings. These custom casement windows accommodate different building requirements while maintaining structural integrity and optimal operation of casement window hardware.
Available Size Options:
> Opening Panel Dimensions: Width ranges from 350mm to 750mm, height extends from 400mm to 1600mm for proper ventilation control and accessibility
> Fixed Panel Specifications: Maximum area of 9 square meters per panel ensures stability while maximizing natural light and views
> Standard Frame Depths: Three options - 65mm, 75mm, and 85mm - to accommodate different wall thicknesses and insulation requirements
> Glass Thickness Options: Single glazing from 5mm to 12mm, double glazing units up to 32mm for enhanced thermal performance
> Maximum Overall Dimensions: Complete window units available up to 2400mm width and 2100mm height for standard installations
> Minimum Clearance Requirements: 100mm perimeter space needed for proper casement window operation and maintenance access
> Custom Configuration Options: Multi-panel combinations available with 2, 3, or 4 sections mixing fixed and opening panels
These size customization options enable architects and builders to specify outward casement window dimensions that meet exact project requirements while ensuring smooth operation and long-term performance.

Style Customization
DERCHI R8Y outward casement windows provide multiple style configurations to match diverse architectural designs. These custom casement windows combine functionality with aesthetics through various panel arrangements and opening mechanisms integrated with casement window hardware.
Available Style Options:
> Single Opening Windows: One operating panel with side hinges for spaces requiring simple ventilation and easy maintenance access
> Double Opening Windows: Two operating panels that open outward from center, suitable for wider openings and maximum airflow control
> Fixed-Operable Combinations: Mix of fixed glass panels with opening sections to balance natural light, views, and ventilation needs
> Arched Top Designs: Semi-circular or segmented arch crowns above rectangular frames adding architectural character to traditional and contemporary buildings
> Horizontal Band Windows: Multiple units arranged side-by-side creating continuous glass walls for panoramic views and modern aesthetics
> Vertical Stack Configurations: Windows arranged in vertical columns maximizing height while maintaining individual operation of each casement window
> Corner Window Systems: L-shaped configurations joining at 90-degree angles for corner installations without vertical posts
> Transom Combinations: Fixed or operable panels above main windows providing additional light while maintaining privacy at eye level
These style customization options allow designers to specify outward casement window configurations that enhance building character while ensuring proper functionality and integration with existing architecture.

What Is The R8Y Outward Casement Window?
The R8Y Outward Casement Window is a side-hinged window system that opens to the exterior of your building. Manufactured by DERCHI, this outward casement window operates through precision casement window hardware for smooth movement. It maintains full interior space while providing maximum ventilation and clear views when opened. The R8Y creates a weatherproof seal when closed, improving energy efficiency in residential and commercial applications. DERCHI offers custom casement windows in the R8Y series to meet specific size and design requirements.
Advanced Features of DERCHI R8Y Outward Casement Windows
The R8Y outward casement window combines precision engineering with customizable options. This casement window hardware system delivers performance through glass technology, connection methods, hardware components, and structural design.

Glass Technology
Double-pane insulated glass with 5mm+27A+5mm configuration provides noise reduction through extra-thick air space
Inert gas filling option enhances thermal insulation and prevents condensation between glass panes
Fluorocarbon-treated aluminum spacers resist discoloration and maintain appearance over time
DERCHI logo on spacers ensures product authenticity and brand recognition
Connection System
Flow-guided injection corner connectors join frames, mullions, and sashes for precise assembly
Two-component adhesive injection strengthens corner joints and improves water resistance


Casement Window Hardware
WEHAG antibacterial handles operate without base plates and inhibit bacterial growth
Friction hinges support up to 50kg per sash using proven four-bar linkage design
Anti-skew transmission boxes prevent misalignment and reduce mechanical failures
Six-point locking system uses patented zinc alloy locks for security
Safety restraint cables support 150kg load to prevent sash falling accidents
Water-swelling EPDM seals expand three times when wet for coastal weather protection
Structural Design Features
Triple-seal system at opening and fixed positions uses pressure equalization for drainage
Protective corners on screen frames prevent impact damage during operation
Built-in screen pressure strips (patented design) secure screens without external fasteners
Flush frame design creates clean interior and exterior surfaces
Hidden drainage channels prevent water backflow while maintaining appearance
Continuous foam gaskets eliminate corner joints through bend-forming technology
35mm thermal break reduces heat transfer and improves energy efficiency

Transform Your Space with Custom Casement Windows
Ready to upgrade your home with DERCHI R8Y outward casement windows? Our team specializes in custom casement windows tailored to your exact specifications. Get professional guidance on casement window hardware selection and installation to maximize performance and longevity.

Performance Specifications
The R8Y outward casement window delivers performance through six key metrics. These custom casement windows protect against water, control air flow, resist wind, reduce noise, manage heat transfer, and control solar gain. Each specification meets industry standards for residential and commercial applications. The casement window hardware supports consistent performance across all conditions.
U-Factor (U.S./I-P): 0.27
This measures heat transfer rate through the window. Lower values mean better insulation and reduced heating and cooling costs. Multi-chamber frame design limits thermal bridging. The window meets ENERGY STAR requirements for most climate zones.
Wind Pressure Resistance: 5000 Pa
The casement window withstands wind forces up to 144 mph. Frame and glass remain secure during hurricanes. Reinforced corners prevent structural failure while hardware maintains operation after wind events. Safety glazing options are available for extreme conditions.
Solar Heat Gain Coefficient (SHGC): 0.22
The window blocks 78% of solar heat from entering, reducing cooling loads in warm climates. Special glass coatings control solar radiation. The design allows visible light while blocking heat, balancing comfort with natural lighting needs.
Water Tightness: 700 Pa
This rating prevents water from entering at pressure equal to 70 mph wind-driven rain. Seals protect interior spaces during storms while gaskets and frames work together to block moisture. Testing simulates extreme weather conditions. Performance remains stable over years of use.
Air Tightness: 1.2 m³/(m·h)
The window limits air leakage to 1.2 cubic meters per hour per meter of joint. This reduces energy loss through unwanted air movement. Multi-point locking system creates tight seal. Weatherstripping blocks drafts at all contact points and helps maintain stable indoor temperatures.
Sound Insulation Performance: 35 dB
This rating reduces outside noise by 35 decibels, transforming busy street noise to library quiet levels. Double sealing system blocks sound transmission. Glass thickness is optimized for acoustic performance, creating peaceful indoor environments.
Technical Specifications
Explore the comprehensive specifications of DERCHI R8Y Outward Casement Windows. Our detailed parameters showcase the premium materials, advanced hardware, and customizable options that make these windows an ideal choice for residential and commercial projects.
Parameter | Details |
Product Name | R8Y Outward Casement Windows |
Brand | DERCHI |
Glass | Double Tempered Glass with argon gas 5mm+27A+5mm(PVDF Aluminum Strip Between double glass) |
Profile | 6063-T5 aluminum profile |
Insulation Strip | Standard BAIYUNYILE insulation strip |
Opening Way | Outward Opening / Awning |
Optional Package | New 48 Pack / New 88 Pack |
Handle | WEHAG Handle in Black and Silver |
Sealing Material | EPDM rubber strip |
Hinge | WEHAG 14 inches Hinge |
Lock Point | Black Six Point Lock (Invention patent) |
Available Size | Opening Panel Width: 350-750mmHeight: 400-1600mm |
Profile Thickness | 1.8mm |
Frame Width | 118mm |
Product Process | • Open fan with internal and external rubber strip technology • Built-in diamond mesh wire pressing process • Whole frame two-component injection molding process |
Application Scenarios
The R8Y outward casement window system meets diverse needs in both commercial and residential settings. These custom casement windows combine functionality with design flexibility. The casement window hardware ensures reliable performance across different building types and usage patterns.

Commercial
Commercial buildings require windows that balance aesthetics with performance. The R8Y outward casement window provides excellent ventilation for offices, retail spaces, and hospitality venues. Custom casement windows accommodate specific architectural requirements and building codes. The casement window hardware withstands heavy daily use in high-traffic commercial environments.

Residential
Homeowners choose outward casement windows for their superior ventilation and unobstructed views. These windows work well in kitchens, bedrooms, and living areas where fresh air circulation matters. Custom casement windows match various home styles from traditional to modern designs. The casement window hardware operates smoothly for everyday residential use.
Why Choose R8Y Outward Casement Windows
DERCHI's R8Y outward casement windows deliver energy efficiency, security, and durability through advanced engineering. Our custom casement windows integrate premium casement window hardware with thermal break technology for superior performance in residential and commercial applications.

R8Y Series Corner Structure
5mm + 27A + 5mm double tempered glass with argon gas, 35mm thermal break strip, and 10-year structural warranty. Complete thermal break system delivers superior insulation performance.

Triple Sealing Technology
Three-layer composite sealing system achieves Grade 8+ water and air tightness ratings. Reduces air infiltration by 40-60% while preventing moisture penetration and drafts.

Energy-Efficient Insulated Glass
Double tempered insulated glass with PVDF aluminum spacers reduces thermal bridging. Edge temperature increases by 4-6°C with solar heat gain coefficient of approximately 0.23.

35mm Ultra-Wide Thermal Break
Ultra-wide PA66 polyamide thermal break strip extends thermal paths and reduces K-values by 0.15-0.2 W/㎡·K. Provides 25% greater mechanical strength than standard strips.

Six-Point Locking System
Multi-point casement window hardware delivers wind resistance exceeding 5.0 kPa per sash. Three-sided locking mechanism provides EN1627 RC2 security rating with anti-theft protection.

Patent Frame Assembly Process
Proprietary slot-and-silicone corner joining technology provides 10x greater impact resistance than standard screw connections. Reduces total ownership costs by 12-15% through leak elimination.

Flush Frame Design
Interior-exterior frame alignment creates a clean, minimalist appearance that increases visible glass area by 12%. This flush profile design eliminates protruding elements and shadow lines for seamless integration with modern architecture. The alignment technology supports both traditional and contemporary building styles while simplifying installation and maintenance procedures.
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 & Quality Standards
DERCHI R8Y outward casement windows meet international building standards with certified performance ratings. Our quality certifications ensure reliable energy efficiency, security, and structural integrity for commercial and residential projects.






Hardware Options
The R8Y outward casement window features premium casement window hardware designed for durability and smooth operation. Our custom casement windows include specialized handles, transmission systems, and hinges that ensure reliable performance and easy operation.



Project Success Stories
Discover how R8Y casement windows deliver exceptional performance across diverse applications. From luxury residential developments to commercial buildings, our custom casement window solutions provide proven results in real-world installations.

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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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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Residential Door And Window Project in Los Angeles, USA
This is the project acceptance status of our DERCHI DOORS AND WINDOWS when we visited our customers in Los Angeles before going to the IBS exhibition in the United States in February 2025.
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Entire Villa in Pāhoa, Hawaii, United States Project
Let’s take a look at the case of DERCHI DOORS AND WINDOWS in Entire Villa in Pāhoa, Hawaii, United States.
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USA Los Angeles Villa Aluminum Windows And Doors Project
Why are the entry doors and sliding doors of DERCHI WINDOWS AND DOORS so popular in Los Angeles, USA?
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Aluminium Windows and Doors Whole House Customisation Project, USA
This is a project for DERCHI Windows and Doors in a villa in USA. Enough to shock builders all over the world.As China aluminum windows and doors manufacturer, DERCHI has always been a leader in the industry. Maybe their prices are not the cheapest, but their quality and technology are leading the w
/ Read MoreComplete Window Solutions
Explore our comprehensive range of premium window systems designed to complement R8Y outward casement windows. From casement window hardware accessories to complete fenestration solutions, find everything needed for your next project.