Inward Opening Casement Windows

The K5N: A True Soundproof Casement Window

Tired of outside noise disrupting your peace? Discover the solution with the K5N inward casement window, a truly soundproof window designed for modern living.

This video demonstrates the exceptional acoustic performance of our inward open casement window. You'll see a live test where this soundproof casement window dramatically reduces noise levels, achieving an incredible 47-decibel difference between the outside and your quiet interior.

Witness for yourself how it effectively blocks out everything from busy street traffic to other environmental sounds. Upgrade your home to the K5N soundproof inward casement window and transform your space into the sanctuary of quiet you deserve.

Color Customization

DERCHI K5N-Inward Open Soundproof Casement Windows offer extensive color options for different design preferences. These soundproof casement windows provide aesthetic flexibility for residential and commercial projects.

Available Color Options:

> Stock Colors: Pearl White, Deep Sea Blue, Black Skin, Caramel Coffee, Deep Coffee, Quartz Gray, Black Crystal Stone, and Starry Sky Black for immediate availability

> Custom Finishes: Color matching service, wood grain patterns, metallic tones, and two-tone combinations for personalized inward casement window designs

> Coating Types: Powder coating, anodizing, and fluorocarbon finishes with varying durability and weather resistance for soundproof window applications

These color options allow architects to select the perfect inward open casement window finish based on building aesthetics, environmental conditions, and design requirements.Retry

Glass Customization

DERCHI K5N-Inward Open Soundproof Casement Windows offer multiple glass configurations for different performance requirements. These soundproof casement windows provide enhanced acoustic, thermal, and security features for residential and commercial projects.

Available Glass Options:

> Performance Glass: Laminated, triple glazing, and Low-E options for superior sound reduction and energy efficiency in inward casement windows

> Specialty Glass: Reflective, tinted, and bullet-proof varieties for privacy, solar control, and security applications

> Advanced Features: Smart glass technology, frosted patterns, and tempered safety glass for specific functional needs

> Configuration Options: Various thickness combinations, spacer bar types, and gas fills for customized soundproof window performance

These glass options allow architects to specify the ideal inward open casement window solution based on acoustic requirements, climate conditions, and security needs.

Window Configuration Customization

DERCHI K5N-Inward Open Soundproof Casement Windows offer multiple configuration options for different architectural requirements. These soundproof casement windows provide design flexibility for residential and commercial projects.

Available Configuration Options:

> Window Combinations: Hexagonal bay, large combination, double casement, and four-panel folding systems with various fixed and operable sections

> Opening Mechanisms: Inward casement operation combined with sliding, folding, and bi-directional movement for flexible ventilation

> Special Designs: Arched tops, picture windows with side casements, transom windows, and symmetrical configurations for unique buildings

> Decorative Features: Diamond grilles, muntin bars, and custom divided light patterns for enhanced aesthetic appeal

These configuration options allow architects to select the ideal inward open casement window design based on building aesthetics, space requirements, and functional needs.

What is K5N Inward Casement Window?

The K5N is an inward casement window engineered for superior sound insulation. This soundproof window features thermal break aluminum profiles with 2.0mm wall thickness. The inward open casement window design saves exterior space while providing easy cleaning access.

Triple glazing with inert gas achieves 37dB sound reduction. The soundproof casement window blocks noise through 6mm tempered glass panels separated by 16mm spaces. Fluorocarbon-treated spacers resist discoloration.

The system delivers Grade 8 air tightness, Grade 9 wind resistance (5kPa), and Grade 10 water tightness. DERCHI combines precision engineering with quality materials for reliable performance in residential and commercial applications.

Key Features of the K5N Inward Casement Window

The K5N Series combines cutting-edge soundproof technology with inward casement window functionality. This system delivers superior acoustic performance while maintaining sleek aesthetics and reliable operation for modern living spaces.

Transform Your Living Space with Superior Sound Control

Experience 37dB noise reduction with DERCHI's K5N soundproof casement windows. German hardware, triple-layer glass, and 25+ years of expertise ensure exceptional performance. Let our team create the perfect custom solution for your project.

Professional Performance Standards

The K5N inward open casement window delivers certified performance across five critical metrics. Each soundproof window undergoes rigorous testing to ensure consistent quality. These professional ratings demonstrate how our inward casement window system protects your interior environment from external elements while maintaining comfort and energy efficiency year-round.

Technical Specifications

Comprehensive parameters and specifications for the DERCHI K5N-Inward Open Soundproof Casement Window, featuring premium materials and advanced engineering for superior acoustic performance.

Application Scenarios

The K5N-Inward Open Soundproof Casement Window delivers superior acoustic performance with 37dB sound reduction. Its inward opening design maximizes space efficiency while providing easy maintenance access. Triple glazing with argon gas filling ensures exceptional noise control for demanding environments.

Triple Glass Technology

Three tempered glass panes with argon-filled cavities reduce heat transfer and energy costs. This design enhances safety through impact resistance while improving sound insulation. The triple-glass system creates quieter interiors, making it ideal for buildings near roads or railways. Low-E coating options further improve thermal performance

Advanced Structural Design

Our 2.0mm aluminum profiles provide structural strength to support heavy triple-glass panels. The 64mm insulation strip creates a wide thermal break that minimizes heat bridge and reduces condensation risk. This combination ensures long-term stability while helping achieve passive house energy standards. The robust design prevents deformation and maintains reliable hardware mounting.

Manufacturing Excellence

Our 70,000+ m² facility produces 400,000+ m² of windows annually. With 600+ skilled employees and modern equipment, we maintain consistent quality across all production batches. The 4,000 m² showroom displays our full product range. This scale enables us to meet large project demands while ensuring precision manufacturing.

Quality Assurance & Certifications

DERCHI holds NFRC, CE, AS2047, CSA, and ISO9001 certifications. Every inward casement window undergoes 100% inspection before shipment. Multi-point testing verifies soundproofing performance and structural integrity. Documentation accompanies each product to ensure traceability and quality control.

Innovation & Patent Portfolio

Our 20+ member R&D team focuses on soundproof window optimization. We hold 100+ patents including invention, appearance, and design patents. This investment in innovation drives continuous product improvement. Our team develops custom solutions for specific project requirements.

Industry Experience & Recognition

With 15+ years specializing in aluminum windows and doors, DERCHI has completed 200,000+ successful installations. We have received 50+ industry honors for quality, innovation, and environmental sustainability. Our experience ensures deep understanding of market requirements and technical challenges. This expertise translates into reliable soundproof casement window solutions.

Global Distribution Network

DERCHI operates through 700+ distributors across 100+ countries. Our established logistics channels ensure efficient international delivery. Local support in major markets provides technical assistance and service. This global reach demonstrates our capability to handle projects worldwide.

Quality Material Partnerships

We collaborate with leading hardware brands and trusted raw material suppliers. Regular supplier audits maintain consistent component standards. These partnerships ensure every inward open casement window uses quality materials. High-grade components contribute to product durability and performance.

Comprehensive Service & Warranty

Our 10-year warranty covers profiles, glass seals, and hardware systems. One-stop service includes technical consultation, installation guidance, and after-sales support. We provide complete assistance from order placement to final delivery. This comprehensive approach ensures customer satisfaction throughout the project lifecycle.

Certifications & Standards

International certifications verify our inward casement window quality. NFRC, CE, AS2047, CSA standards ensure global compliance and performance reliability.

Hardware Options

The K5N inward open casement window incorporates specialized hardware components that ensure smooth operation and enhanced soundproofing performance. These carefully selected hardware options work together to deliver reliable functionality for your soundproof casement window system.