Minimalist Casement
DBIAO Custom Aluminum Alloy Minimalist Casement Window Waterproof Soundproof
- Air Exchange: Max Airflow Volume
- Water Resistance: Class 9A (600 Pa)
- Acoustic Rating: STC 38 dB
Architectural Product Line
High-Performance Bathroom Fenestration Systems
Manufactured to meet stringent international building standards (AS 2047, CE, AAMA/WDMA), our aluminum bathroom windows combine hygienic airflow dynamics with structural hermetic sealing, thermal insulation, and visual privacy.
Top-Hung Awning
Modern Aluminum Top Hung Awning Window Outward Opening Ventilation Glass
- Profile Alloy: 6063-T5 Extrusion
- Rain Protection: Continuous Open Drain
- Gasket System: Triple EPDM Vulcanized
Child Safety Lock
Thermal Break Aluminum Child Safety Window Double Glazed Limit Stops
- Safety Limit: 100mm Restricted Stop
- Thermal Barrier: PA66 GF25 Strip
- Glazing: 5mm+12A+5mm Low-E
Thermal Awning
Wholesale Modern Aluminum Outward Top Hung Awning Window Insulation
- Condensation Index: CRF > 65 Certified
- Hardware: 304 Stainless Friction Stay
- Finish: Fluorocarbon PVDF Coated
Integrated Screen
Custom Aluminium Bathroom Ventilation Fixed Glass Awning Window Screen
- Mesh Material: 316 Marine Stainless Mesh
- Configuration: Fixed Transom + Awning
- Acoustic Rating: STC 35 dB
Louver Jalousie
Aluminium Louver Window for Bathroom Adjustable Glass Shutter Ventilation
- Blade Rotation: 0° to 105° Infinite Tilt
- Privacy Glazing: Frosted / Frosted Fluted
- Air Exchange: 100% Free Air Area
Tilt-Turn Exterior
Aluminum Alloy Casement Windows Inwards Opening Tilted Exterior Villa
- Operation Mode: Tilt-Before-Turn Dual-Drive
- Security Rating: RC2 / Multi-Point Locking
- Glass Tempering: EN 12150-1 Toughened
Acoustic Tilt
Natural Ventilation Aluminum Tilt Window Bathroom Soundproof Double Glazed
- U-Factor: Uw ≤ 1.4 W/(m²·K)
- Micro-Vent Gap: 15mm Draft-Free Offset
- Sound Reduction: Rw 42 dB Achieved
Fenestration Physics
Engineering Wet-Room Moisture Control & Structural Isolation
Bathroom environments represent the most hygrothermally challenging zones in architectural building envelopes. High-intensity vapor plumes, localized relative humidity exceeding 90%, and direct caustic detergent exposure demand advanced metallurgical, thermal, and mechanical engineering solutions.
Thermal Break Cavity Engineering
DERCHI incorporates 24mm to 34mm PA66-GF25 (polyamide reinforced with 25% glass fiber) thermal barriers. By isolating interior and exterior 6063-T6 aluminum extrusion chambers, interior frame temperatures stay consistently above the localized dew point, eliminating condensation sweat, fungal growth, and water pool damage on interior sills.
Cascading Differential Weep Systems
Our bathroom window frames utilize pressure-equalized rain-screen drainage gutters with hidden cascading weep slots. Integrated stainless-steel gravity check valves prevent exterior wind-driven gusts from forcing water backwards into the wet room during extreme monsoons or coastal typhoon conditions up to 600 Pa hydrostatic head pressure.
Continuous Vulcanized EPDM Seals
Rather than conventional PVC, our assemblies leverage cellular synthetic EPDM rubber co-extruded gaskets at sash-to-frame intersections. Offering long-term elasticity from -40°C to +120°C, these continuous uninterrupted corner-welded seals resist surfactant degradation from hot shower mists and chemical bathroom cleaners without stiffening or shrinkage.
B2B Sourcing Intelligence
Future Procurement Trends in Commercial & Residential Fenestration
Procurement directors, general contractors, and facade consultants face evolving energy efficiency mandates, tighter building envelopes, and rising acoustic mitigation standards. Sourcing strategies for aluminum bathroom windows are rapidly realigning around four pivotal engineering vectors.
BMS Actuator Integration
Specification is shifting heavily toward 24V DC concealed chain actuators linked directly to indoor humidity sensors. Windows actuate automatically at 65% RH thresholds, maintaining continuous passive air changes without requiring mechanical extraction fans.
Acoustic Privacy Isolation
Urban density requires dampening wet-room acoustic echoes while preventing speech transmission to outdoor courtyards. Procurement teams favor asymmetrical acoustic laminated glass (e.g., 6mm Low-E + 0.76mm acoustic PVB + 4mm clear) achieving STC > 38 dB ratings.
Dual-Color Surface Finishing
OEM orders increasingly mandate split-anodized or split-powder-coated extrusions. Facade exteriors match municipal architectural guidelines (RAL 7016 Anthracite or bronze anodized), while interior wet-room surfaces feature antimicrobial matte-white fluorocarbon coats.
Circular Economy & ESG
Leading developers prioritize low-carbon aluminum billets smelted using renewable hydropower. Certified traceability under ISO 14001, combined with 100% recyclable profiles and lead-free stabilizers, assists projects in securing LEED Gold and BREEAM Outstanding status.
Comparative Technical Matrix
Architectural Configuration & Performance Specification Guide
Select the optimal opening typologies for your multi-unit residential towers, luxury villas, or modular hospitality pods based on verified lab test performance metrics.
| Opening Configuration | Air Exchange Rate (ACH) | Water Tightness (ASTM E331) | Thermal U-Value (W/m²·K) | Sound Attenuation (STC) | Weather Sealing Type | Target Architectural Application |
|---|---|---|---|---|---|---|
| Top-Hung Awning | Moderate (35% Sash Clearance) | Class 9A / 600 Pa (Superior) | 1.3 – 1.6 W/(m²·K) | STC 36 – 38 dB | Dual Continuous EPDM | High-rise hotels, coastal apartments, rainy zones |
| Tilt & Turn (Inward) | Dual-Rate (Micro & Full 100%) | Class E750 / 750 Pa (Maximum) | 1.1 – 1.4 W/(m²·K) | STC 40 – 42 dB | Triple Gasket System with Capillary Break | Luxury villas, cold-climate residential, high-end suites |
| Adjustable Glass Louver | Maximum (95% Free Area) | Class 3A / 150 Pa (Moderate) | 2.8 – 3.4 W/(m²·K) | STC 26 – 30 dB | Overlapping Glass Interlock Seals | Tropical resorts, commercial restrooms, warm climates |
| Minimalist Side Casement | High (70% Clear Aperture) | Class 8A / 450 Pa (High) | 1.4 – 1.7 W/(m²·K) | STC 37 – 39 dB | Compression Perimeter Weatherstrips | Modern residential master baths, boutique hotels |
Factory-Direct Manufacturing
Guangdong Dejiyoupin (DERCHI) Industrial Prowess
Ranked among the Top 10 premium architectural door and window manufacturers in China, Guangdong Dejiyoupin Doors and Windows Co., Ltd. delivers engineered reliability through deep vertical integration, robotics-assisted precision, and comprehensive global project delivery experience.
180,000㎡ Intelligent Facility
Our expansive smart production base in Foshan, Guangdong houses automated Italian CNC profile machining centers, robotic corner-crimping cells, and high-capacity automated tempering lines capable of producing 350,000+ square meters of fenestration annually.
100+ Global Certifications & Patents
DERCHI products carry rigorous third-party verification, including Australian AS 2047 (N6 Cyclic Wind Testing), North American NFRC/AAMA, European CE, ISO 9001, and UL fire ratings. Our technical portfolio holds over 30 design and structural utility patents.
Dedicated OEM/ODM Project Delivery
Backed by over 600 skilled technicians and in-house fenestration engineers, we provide complimentary structural CAD detailing, shop drawings, thermal simulation reports, and export packaging in reinforced fumigated plywood crates for damage-free transit worldwide.
Procurement Knowledge Base
Frequently Asked Questions by Global Project Buyers
Essential technical clarifications regarding alloy selection, condensation prevention, privacy treatments, shipping logistics, and compliance testing.
How do thermal break profiles prevent condensation in high-moisture bathrooms?
In winter or air-conditioned settings, warm bathroom water vapor strikes cold untreated aluminum, immediately condensing into droplets. By mechanically inserting low-conductivity PA66-GF25 polyamide barrier strips between the interior and exterior extrusions, heat transfer across the frame drops by over 70%. The interior aluminum surface stays warm above the ambient dew point, completely eliminating condensation and moisture runoff.
What surface finishes best resist chlorine, bathroom cleansers, and coastal humidity?
We recommend Qualicoat Class 2 architectural powder coating (minimum 60-80 microns thickness) or Grade 20-25 micron anodization. For severe coastal environments or five-star resort spa applications exposed to chlorine mist, we apply triple-coat fluorocarbon PVDF finishes (containing 70% Kynar 500 resin), which withstand 3,000+ hours of continuous neutral salt spray testing without pitting or blistering.
What privacy glass treatments can be combined with thermal double glazing?
We supply diverse high-transmittance privacy solutions laminated or sealed inside insulated glass units (IGU). Options include Italian satin acid-etched obscure glass, fluted/reeded textured architectural glass, ceramic frit frosted patterns, motorized internal magnetic Venetian blinds hermetically sealed inside the argon cavity, and electronic PDLC switchable privacy smart glass.
Can you customize window opening restrictions for multi-story apartment safety?
Yes. For multi-family residential towers and hotels, building codes (such as the UK Building Regulations Part O or North American ASTM F2090) mandate fall-prevention mechanisms. We integrate 304/316 stainless-steel concealed mechanical limit stops that restrict maximum sash travel to 100mm (4 inches), ensuring safe ventilation while preventing accidental falls.
What is the standard production lead time and Minimum Order Quantity (MOQ)?
For custom residential villas or bespoke samples, our MOQ starts from a single set or a complete villa schedule. For commercial OEM/ODM project contracts, standard production cycles require 25 to 35 working days post-approval of shop drawings and color swatches. High-volume container orders receive phased delivery schedules aligned directly with the contractor's site installation timeline.
How are the windows packed to prevent transit damage during ocean freight?
Every window unit undergoes five-layer protective packaging: PE surface film wrapping, heavy-duty molded corner protectors, shock-absorbent multi-layer bubble wrap, moisture-barrier shrink film, and fully enclosed export-grade plywood crates with internal timber dunnage. All crates are ISPM-15 certified and reinforced with steel strapping to ensure zero transit movement.
Request Direct OEM/ODM Engineering Specifications & Pricing
Connect with our technical fenestration consulting team. Submit your architectural schedules, elevation elevations, or custom extrusion requirements to receive comprehensive CAD shop drawings, structural thermal modeling data, and volume-tiered export quotations within 24 business hours.