High-Performance Weatherproofing
Modern architecture demands structural components that are not only visually striking but also capable of withstanding the harshest environmental pressures. As a premier Waterproof Aluminum Door Manufacturer, DERCHI engineered entry systems represent the pinnacle of waterproof performance, structural integrity, and contemporary design.
Aluminum has long been celebrated for its lightweight strength and corrosion resistance, but when combined with DERCHI's proprietary sealing technologies, it transforms into an impenetrable barrier against torrential rains, coastal moisture, and extreme storms. Our waterproof aluminum doors are meticulously designed to mitigate the risks of water ingress, which can cause catastrophic damage to building interiors, promote mold growth, and compromise structural foundations.
- Multi-tiered EPDM gasket arrays for seamless perimeter sealing.
- Advanced thermal break profiles that isolate moisture and temperature.
- Pressure-equalized drainage systems keeping internal frames dry.
- High-grade 6063-T5 aluminum alloy construction for maximum durability.
Company Profile & Global Capacity
As a top-ranking Chinese exporter in the door and window industry, DERCHI provides global customers with one-stop customized aluminum door and window solutions. With advanced manufacturing facilities and strong R&D capabilities, we deliver high-quality products and reliable project support to clients worldwide.
DERCHI Doors and Windows (Guangdong Dejiyoupin Doors and Windows Co., Ltd.) has been recognized by the world-class media Xinhua News Agency as a "China Famous Brand". We specialize in the research, development, and manufacturing of high-end doors and windows for the global market, offering strong innovation capabilities and large-scale production capacity.
The Technology Behind Our Waterproof System
Our engineering department utilizes state-of-the-art physics and material science to build doors that completely isolate internal environments from external water forces.
01 Pressure Equalization
By designing specific air chambers inside the aluminum extrusion, we equalize the pressure between the outside and the internal profile, preventing rain from being sucked inside by negative air pressure.
02 6-Point Lock System
Our patented Four-Side Six-Point Lock technology ensures that the door panel pulls tightly against the weather seals on all four edges, eliminating warping and maintaining compression.
03 Thermal Barriers
German automated strip insertion technology applies premium polyamide thermal breaks that prevent heat transfer and eliminate condensation-induced moisture build-up.
| Performance Metric | Test Standard | DERCHI Rated Value |
|---|---|---|
| Water Penetration Resistance | ASTM E331 / EN 12208 | Up to 750 Pa (Class E750 / Class 9A) |
| Wind Load Resistance | ASTM E330 / EN 12210 | Up to 6000 Pa (Class 5 / Class C5) |
| Air Infiltration | ASTM E283 / EN 12207 | < 0.1 L/s·m² (Class 4) |
| Acoustic Insulation | ISO 10140 | Up to 45 dB reduction |
Advanced Production & Quality Control
Every single aluminum door manufactured at our facility undergoes a rigorous process from material selection to final quality check, ensuring absolute waterproof compliance.
Experimentation Center
An independent window and door performance testing and experimentation center for pressure, wind, and water tightness.
Production Quality
168 production processes and 38 quality inspections guarantee that every unit is free of structural and sealing defects.
Automated Lines
Equipped with eight internationally advanced automated production lines for extreme dimensional accuracy.
Precision Machinery & Infrastructure
To support high-volume distribution without compromising on waterproofing tolerances, our factory operates with advanced European and German heavy machinery.
- Six dedicated glass production lines for double/triple glazing unit fabrication.
- Five intelligent automated warehouses for optimized component sourcing and damage prevention.
- Three German fully equipped automated strip insertion machines for precise thermal break assemblies.
Featured Waterproof Door Solutions
Explore our high-performance aluminum door range, custom-built for superior wind resistance, thermal efficiency, and waterproofing.
Extra Large Aluminum Entry Door | Solid Wood Glass Sidelight
Designed for grand entrances, combining structural aluminum strength with thermal efficiency and heavy-rain resistance.
View Details
Aluminum Double Glazed Pivot Door | Big Size Glass Front Entry
Features robust pivot hardware and double-glazed safety glass, engineered to keep storm water out.
View Details
Double Glazed Glass Pivot Entry Door | Big Size Aluminum Front
Modern minimalist exterior door offering high acoustic dampening and complete perimeter waterproofing.
View Details
Luxury Aluminum Front Entry Doors | Soundproof Villa Security
Premium villa security doors with enhanced locking points and multi-layered sealing gaskets.
View Details
Aluminum Front Entry Door | High-End Hinged Swing Door
Classic swing operation with modern thermal breaks and top-tier water drainage paths.
View Details
Minimalist Aluminum Pivot Door | Wood Grain Villa Front Entry
Combines the beauty of natural timber finishes with the zero-maintenance waterproofing of aluminum.
View Details
Aluminum Villa Entry Double Doors | Luxury Custom Exterior Security
Grand scale double doors built to secure luxury residences from heavy storms and intrusion.
View Details
Hurricane Rated Aluminum Pivot Door | Commercial Front Entry
Impact-resistant glass and reinforced frames certified for high-velocity hurricane zones.
View Details
NFRC American Aluminum Security Pivot Doors with Smart Lock
Energy-certified pivot doors with smart lock integration and heavy weather stripping.
View DetailsCertifications & Honors
DERCHI holds over 100 national patents, including the exclusive Four-Side Six-Point Lock invention patent for enhanced security. Our products meet international standards and certifications including Hurricane Certification, CE (EU), NFRC (USA), AS2047 (Australia), CSA (Canada), Energy Star, and ISO 9001.
These credentials prove that our waterproofing technology holds up to real-world pressure differentials. By certifying our products through independent testing authorities globally, we verify that our doors are ready to face harsh coastal climates, tropical downpours, and intense freeze-thaw cycles without leaking or degrading.
Our Manufacturing Workshop
Take a look inside our high-tech production bays where precision meets scale.
Trusted Partner Worldwide for Aluminum Windows & Doors
There are more than 700 exclusive shops spread out many cities in China. We serve more than 100 countries around the world and have provided quality door and window products and services for 100,000+ projects.
