Engineered to exceed NFRC, CSA, and ENERGY STAR® standards. Direct-from-manufacturer thermal break systems built for modern developers and architects.
Acoustic Comfort. Extreme Wind Loads.
Polyamide thermal breaks, Low-E argon insulated units, and multi-point sealing against harsh climates.
180,000 m² Facility. 18,000+ Projects.
Over 25 years of specialized engineering and full vertical integration for international fenestration contracts.
In modern architectural design and commercial building construction, windows function as far more than mere building openings—they are critical, highly engineered building envelope components that determine a structure's overall energy consumption, acoustic performance, structural safety, and life-cycle durability. Whether specifying architectural windows for high-rise residential complexes in Vancouver, custom villas in coastal California, or mixed-use urban centers in Toronto, procurement directors require transparent engineering parameters and consistent manufacturing precision.
Guangdong Dejiyoupin Doors and Windows Co., Ltd. builds the renowned DERCHI fenestration line. For more than 25 years, our technical engineering team has collaborated directly with international developers, general contractors, and architectural firms to transform complex architectural elevations into high-performance, precision-built custom windows. Recognized as a "China Famous Brand" by Xinhua News Agency, we bridge the gap between heavy structural resilience and contemporary minimalist aesthetics.
Every commercial build and custom home demands specific thermal boundaries, operable hardware, and wind-load performance. Explore our core window categories engineered for long-term climate resilience.
Our flagship casement series features 2.0mm wall thickness 6063-T6 aluminum profiles, high-tensile PA66 GF25 polyamide thermal insulation strips, and triple-sealed EPDM co-extruded gaskets. Designed with concealed friction hinges and multipoint compression locking, these windows achieve zero air infiltration under high wind pressures and deliver overall U-factors as low as 0.18 with triple-pane argon Low-E configurations.
Engineered for high-end residential elevations and commercial curtain wall interfaces that demand unobstructed vistas. Our fixed picture windows support oversized structural glass spans up to 12 square meters per pane. Fabricated with internal corner reinforcement crimping and perimeter structural silicone glazing (SSG), these non-operable units provide maximum air tightness, watertightness up to 1000 Pa, and exceptional sound transmission mitigation (STC 42+).
Heavy-duty, precision roller tracks with stainless steel guide rails ensure effortless glide even under massive sash weights. Built-in drainage channels prevent water buildup during driving rainstorms, making them ideal for urban high-rise living.
Explore Sliding WindowsEngineered for storm and coastal zones requiring TAS 201/202/203 testing and High Velocity Hurricane Zone (HVHZ) ratings. Utilizing SentryGlas® or PVB structural interlayers and reinforced multichamber extrusions capable of withstanding heavy projectile impacts.
Explore Impact WindowsAs international energy codes tighten and building developers face stricter carbon emissions limits, fenestration choices are shifting rapidly. Understanding market and engineering trajectories gives builders a lasting competitive edge.
Global procurement mandates now penalize thermal bridging. Windows with polyamide breaks greater than 34mm, combined with warm-edge composite spacers and Krypton/Argon fills, are becoming standard across international tier-1 projects.
Commercial developers are moving toward motorized concealed operators integrated into centralized Building Management Systems (BMS), including electrochromic smart glass and concealed micro-ventilation sensors.
Global supply chains now prioritize Environmental Product Declarations (EPDs). Sourcing windows manufactured from sustainably refined, high-grade recycled aluminum billets sharply reduces embodied carbon in green-certified buildings (LEED / BREEAM).
Intensifying global weather events are pushing seismic, high-velocity hurricane, and wildfire-rated window specifications into broader metropolitan building codes across the Americas, Europe, and Australasia.
Emerging Passive House Target
Acoustic STC rating attainable
CNC profile milling precision
Extreme structural load capability
Guangdong Dejiyoupin Doors and Windows Co., Ltd. specifies virgin architectural 6063-T5/T6 primary aluminum with 1.8mm to 2.2mm minimum structural wall thickness, exceeding generic commercial standards.
Our PA66 GF25 multi-cavity thermal struts measure between 24mm and 35.3mm, isolating temperature transmission and eliminating internal condensation risks under freezing sub-zero conditions.
Equipped with world-class hardware (Sobinco, CMECH, Siegenia, or our proprietary four-side multi-point locking patents), rated for 50,000+ uninterrupted opening-and-closing cycles.
Every fenestration schedule is verified via engineering shop drawings within 48 hours of architectural drawing submission, minimizing on-site installation discrepancies.
| Window Series | Thermal U-Factor (Btu/hr·ft²·°F) | Air Infiltration | Water Resistance | Recommended Application |
|---|---|---|---|---|
| DERCHI Ultra-Thermal Casement | 0.17 – 0.22 | < 0.01 cfm/ft² | 720 Pa (15.0 psf) | Northern & Cold Climates |
| DERCHI Structural Picture Window | 0.16 – 0.20 | 0.00 cfm/ft² | 1000 Pa (20.8 psf) | Luxury Villas & Commercial |
| DERCHI Multi-Track Sliding Window | 0.24 – 0.28 | < 0.08 cfm/ft² | 450 Pa (9.4 psf) | High-Rise Urban Condos |
| DERCHI Hurricane Impact Window | 0.26 – 0.32 | < 0.02 cfm/ft² | 750 Pa (15.6 psf) | Coastal & Storm Zones |
| DERCHI Tilt & Turn System | 0.18 – 0.23 | < 0.01 cfm/ft² | 600 Pa (12.5 psf) | European & Modern High-End |
Data tested according to AAMA/WDMA/CSA 101/I.S.2/A440 and NFRC guidelines. Actual ratings depend on chosen glass makeup (e.g. low-iron tempered, triple-pane argon, double Low-E silver coating). Contact our engineering department for certified laboratory submittal packages.
Guangdong Dejiyoupin Doors and Windows Co., Ltd. has supplied custom windows and curtain systems to prestigious commercial hospitality projects such as Hilton Hotels, luxury custom developments in California and Toronto, and master-planned residential communities across 50+ countries. Every contract is backed by our full technical cycle: structural wind calculations, glass thermal modeling, shop drawing sign-offs, and on-site engineering coordination.
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Procuring custom architectural windows from overseas requires bulletproof procedural control. We follow a strict end-to-end quality system to guarantee complete specification compliance.
01Detailed analysis of window schedules, elevation depths, and local structural wind codes.
02Selecting profile extrusions, thermal strip sizing, and tailored glass packages.
03Comprehensive cost breakdown, compliance reports, and delivery timeline milestones.
04Finalizing 1:1 scale corner joints, glass build-ups, hardware placement, and finish finishes.
05Locking in certified 6063-T6 aluminum alloys and scheduled batch extrusion slots.
06Sub-millimeter check of site rough openings to eliminate framing installation issues.
07Automated milling, crimping, sealing, and 360-degree quality testing before export crating.
08Comprehensive CAD flashing details, video guides, and technical project support.
With 25+ years at the forefront of the architectural fenestration sector, our facility provides international general contractors and dealers with immense capacity, guaranteed certification traceability, and deep customization flexibility.
High-capacity smart manufacturing facility producing over 1,000,000 square meters of high-end windows and doors annually with predictable production leads.
Pioneering inventions including our patented four-side multi-point locking system for maximum forced-entry security and hurricane wind resistance.
Powder-coated AAMA 2604/2605 fluorocarbon finishes, anodized profiles, realistic heat-transfer wood grains, and custom structural framing geometries.
Guangdong Dejiyoupin Doors and Windows Co., Ltd. subjects every window line to rigorous third-party laboratory evaluations to satisfy North American and international building codes.
Direct technical answers addressing the most common queries international contractors, developers, and quantity surveyors ask during window specification and sourcing.
Submit your architectural elevations, rough opening schedules, or energy target sheets. Our technical desk responds within one business day.
Contact Us Partner with Guangdong Dejiyoupin Doors and Windows Co., Ltd. for factory-direct engineering, verified code compliance, and reliable global project delivery. Contact our engineering desk at [email protected] or connect live with our specialists.