Slim Vinyl / Glaze
WANJIA Modern Vinyl Sliding Window Replacement System
Condo / High-Rise
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Engineered Fenestration Portfolio
Flagship Architectural Systems for Thai Developments
Each system is manufactured in our 180,000㎡ precision fabrication hub, integrating high-grade 6063-T6 aluminum alloys, Qualicoat class powder coatings, and multi-point security hardware configured for international CE and AS 2047 compliance.
Thermal Break
Custom Cast Aluminum Thermal Break Front Security Entry Door
Luxury Villa / Gate
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Commercial Grade
45mm Slim Profile
45 Slim Frame Church & Interior Bathroom Swing Door Profile
Interior Partition
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Typhoon Resistant
Hurricane Impact Triple Glazed Bi-Fold Accordion Patio Doors
Island & Coastal
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Acoustic Partition
Heritage French
Bespoke Black Aluminium Heritage Double Interior French Glass Doors
Art Deco / Heritage
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Solar Shield Low-E
Local Climate Adaptation
Engineering Heritage Aesthetics for Thailand's Tropical Microclimates
The architectural charm of historic steel and classic timber fenestration often meets critical failure points when deployed in Southeast Asia. Thailand experiences sustained relative humidity levels exceeding 85%, prolonged monsoon downpours, high UV radiation indices, and aggressive salinity along coastal frontiers. Our CE-certified aluminium heritage door assemblies resolve these challenges through precision metallurgical engineering and advanced barrier science.
Moisture & Oxidation Defense
Zero Swelling & Anti-Rot Integrity
Traditional hardwood doors in Bangkok, Chiang Mai, and Hua Hin suffer from hygroscopic dimensional fluctuations, resulting in latch misalignment, air leakage, and wood rot. Our primary architectural extrusions utilize certified 6063-T6 virgin aluminum alloy with precision wall thicknesses up to 3.0mm, completely impervious to subterranean termites, moisture expansion, and fungal degradation.
Salt Spray Resistance
Coastal Durability: Phuket & Koh Samui
Oceanfront luxury properties require surfaces certified against sodium chloride attack. DERCHI applies AkzoNobel Interpon and PPG fluorocarbon PVDF powder finishes exceeding 80μm thickness. These treatments undergo 3,000+ hours of continuous neutral salt spray (ASTM B117) validation, ensuring no blistering, chalking, or delamination in exposed marine atmospheres.
Acoustic & Thermal Barrier
Urban Acoustic Attenuation: Bangkok Core
In high-density districts such as Sukhumvit, Sathorn, and Thonglor, urban traffic noise often exceeds 75 dB. By embedding Technoform polyamide PA66 GF25 thermal breaks and multi-chambered EPDM cellular continuous gaskets paired with asymmetric laminated acoustic glass, our heritage systems deliver Sound Transmission Class (STC) ratings up to 42 dB.
Project Typologies
Tailored Architectural Applications Across the Kingdom
From historical Sino-Portuguese shophouses in Phuket Old Town to super-luxury residential estates in Bangkok, heritage profile design requires nuanced engineering to meet contemporary building codes while respecting vernacular balance.
Phuket & Songkhla
Sino-Portuguese Shophouse Restoration
Preserves traditional narrow-sightline glazing bars and classic arched transom profiles. Provides modern air permeability class 4 compliance, allowing boutique hotels and commercial cultural spaces to maintain historic character without energy loss.
Bangkok & Nonthaburi
Ultra-Luxury Contemporary Villas
Widely specified for custom estates in Nichada Thani, Bang Na, and Rama 9. Incorporates steel-look slim-profile French entrance systems, oversized pivot configurations with German hidden hinges, and integrated smart electronic access integration.
Pattaya & Koh Samui
Coastal Monsoon-Shield Bi-Folds
Designed for beachfront hospitality villas requiring unobstructed panoramic views. The hurricane-rated accordion mechanism features sunken stainless steel floor tracks with built-in drainage weep channels to prevent internal water penetration during squalls.
Chiang Mai & Rai
Lanna-Modern Eco Residences
Blends natural timber-grain anodized finishes with high thermal performance. Isolates seasonal temperature fluctuations in northern elevated terrains, ensuring continuous thermal comfort and condensation prevention.
Technical Whitepaper
Structural Integrity & Pressure Resistance Under AS 2047 & CE EN 14351-1 Standards
Tropical storms in the Gulf of Thailand and the Andaman Sea can generate peak wind gusts exceeding 2.5 kPa to 4.5 kPa. Standard domestic profile extrusion systems frequently fail via glass deflection, seal blowout, or structural frame racking.
- Internal Structural Reinforcement: Heavy-gauge galvanized carbon steel stiffeners inserted in hinge-bearing stiles prevent frame distortion on doors exceeding 3,000mm in height.
- Dual-Extruded EPDM Gaskets: Vulcanized corner jointing eliminates water capillary intrusion during sustained 300 Pa cyclic water penetration tests.
- Thermal Barrier Optimization: Prevents heat transfer from exterior ambient temperatures of 38°C to chilled 23°C conditioned interiors, reducing HVAC operational load by up to 34%.
Procurement Specification Data
Heritage Door Series Architectural Matrix
Complete engineering parameters for project design directors, quantity surveyors, and façade contractors preparing specifications for Thailand developments.
| Technical Parameter | Standard Grade Configuration | DERCHI Tropical High-Spec Heritage | Project Regulatory Compliance |
|---|---|---|---|
| Alloy Base & Temper | Commercial 6063-T5 (1.4mm wall) | Primary Structural 6063-T6 (2.0mm - 3.0mm wall) | GB/T 5237, EN 755, ASTM B221 |
| Thermal Barrier Core | Non-Thermal Break or PVC Strip | Imported Technoform PA66 GF25 Polyamide Bar | DIN EN ISO 10077-2, U-value ≤ 1.6 W/m²K |
| Surface Protection | Standard Powder Coating (40-50μm) | AkzoNobel / PPG PVDF Fluorocarbon (≥80μm) | AAMA 2605, Qualicoat Class 2 Coastal |
| Wind Load Resistance | 1,500 Pa (Serviceability) | Up to 4,500 Pa (AS 2047 Class N6 Structural) | CE EN 12210 Class C5 / AS 2047 |
| Water Penetration | 150 Pa Static Threshold | 450 Pa Cyclic Water Head with Sub-Sill Weeps | CE EN 12208 Class 9A / ASTM E331 |
| Acoustic Rating | Rw 28 - 30 dB | Rw 38 - 43 dB (Laminated Low-E + Argon) | ISO 140-3, ASTM E90 STC 42 |
| Hardware Mechanism | Single Point Friction Latch | German Siegenia / Hoppe Multi-Point Anti-Lift | EN 13126, PAS 24 Security Class RC2/RC3 |
Market Transformation
Trends Defining Thai Façade & Door Procurement in 2026–2030
The architectural landscape in Bangkok and holiday resort provinces is rapidly shifting toward sustainability frameworks, retro-industrial luxury aesthetics, and accelerated modular prefabrication.
Green Architecture
Alignment with TREES & LEED Criteria
Thailand's 'Thai’s Rating of Energy and Environmental Sustainability' (TREES) and international LEED v4.1 certification are now mandatory targets for Grade-A commercial and luxury residential towers. Our thermally isolated heritage doors contribute substantial Energy Performance credits by slashing solar heat gain coefficients (SHGC ≤ 0.28) and minimizing indoor cooling loads in hot-humid microenvironments.
Aesthetic Evolution
The 'Modern Heritage' Industrial Slim Trend
Developers in Bangkok's upscale residential segments (e.g., Sansiri, Land and Houses, SC Asset) increasingly specify ultra-narrow interlockers (18mm to 25mm sightlines) that mimic 1920s Crittall-style steel frames. Aluminum provides this look at 40% less weight, with superior anti-corrosion life and lower foundation stress.
Logistics Innovation
Fast-Track Maritime Supply Chains
With ongoing developments across Eastern Economic Corridor (EEC) zones, developers demand lean lead times. Leveraging Foshan's Pearl River Delta container ports (Nansha/Shekou), our shipments reach Bangkok Port (PAT) or Laem Chabang Deep Sea Port within 5–7 sailing days, ensuring uninterrupted on-site contractor schedules.
Contractor & Importer FAQ
Frequently Addressed Procurement Inquiries for Thailand
Clear, definitive technical clarifications addressing logistics, import tariffs, building approvals, and on-site assembly for Thailand-based specifiers.
Q1: How does CE certification facilitate local Thailand building authority approvals?
Thailand’s Department of Public Works and Town & Country Planning (DPT) and engineering consultants require validated mechanical resistance, safety in use, and wind load data for residential and hotel projects. Our CE Mark (EN 14351-1), accompanied by AS 2047 cyclic test reports, provides independent structural proof accepted by leading Thai engineering audit firms without redundant re-testing.
Q2: Can DERCHI supply custom CAD shop drawings to match existing Thai architectural schedules?
Yes. Every single door assembly is engineered to order. Our technical design bureau produces detailed bilingual (English/Chinese) shop drawings, CAD structural cross-sections, and 3D anchorage details specifying rough opening tolerances, structural anchor spacing, and sub-sill flashing compatible with lightweight block or reinforced concrete walls typical of Thai construction.
Q3: What are the standard shipping timelines to Bangkok Port and Laem Chabang?
Production lead times range from 20 to 30 working days depending on finish choice and hardware complexity. Sea freight transit from Nansha/Shekou to Bangkok Port or Laem Chabang takes just 5 to 7 days. We provide complete Form E (ASEAN–China Free Trade Agreement) documentation, enabling Thai importers to benefit from preferential tariff rates on eligible aluminium profiles.
Q4: How do your doors handle condensation caused by extreme indoor-outdoor temperature differences?
When external temperatures reach 38°C with 85% RH and internal air-conditioned spaces are set to 21°C, non-thermal break profiles immediately 'sweat,' creating interior moisture pooling, mold growth, and drywall damage. Our PA66 GF25 thermal breaks decouple interior and exterior aluminum surfaces, keeping the internal frame temperature well above the condensation dew point.
Q5: What glazing configurations are recommended for coastal areas like Phuket and Pattaya?
For high-exposure coastal villas, we specify double or triple glazed units consisting of 6mm solar-reflective Low-E tempered outer lite + 12mm argon-filled warm edge spacer + 6.38mm or 8.76mm clear PVB/SentryGlas laminated inner lite. This configuration resists airborne debris during typhoons, reduces solar infrared heat ingress, and shields interiors against UV degradation.
Q6: How are doors packaged to prevent damage during tropical ocean transit?
To counter ocean moisture and port handling impacts, every door is enveloped in peelable protective film, wrapped in heavy-duty EPE foam buffers, sealed within vacuum-desiccated moisture-barrier sheeting, and crated inside fumigated, ISPM-15-certified solid plywood cases reinforced with steel strapping.
Enterprise Capability
Why Discerning Asian Developers Partner with DERCHI
Headquartered in Foshan, Guangdong—the world’s epicenter of high-end aluminum extrusion—Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) represents over a quarter-century of industrial engineering, verified by international standards.
180,000㎡ Intelligent Hub
Large-Scale Automated Production
Our industrial park houses automated CNC profile-machining centers, robotic corner-crimping units, continuous PVDF and powder-coating lines, and automated double-glazing sealing cells. This scale enables consistent, rapid fabrication cycles for bulk villa developments, condominiums, and commercial complexes across Asia.
Testing & Compliance
Over 100 Patents & Global Certifications
DERCHI holds ISO 9001, CE, Australian AS 2047, and UL fire-rated certifications. In-house test chambers conduct real-time structural cyclic pressure tests, air permeability assays, and continuous water leakage evaluations prior to packaging, ensuring zero defective units arrive at your job site.
Bespoke Engineering
Dedicated Southeast Asian Timezone Team
Our international technical sales engineers operate on GMT+8 (just 1 hour ahead of Bangkok's GMT+7), delivering same-day turnaround on quotations, shop drawings revisions, and technical queries. We bridge communication gaps between developers, local site engineers, and factory production lines.
Foshan Industrial Base
End-to-End Direct Factory Export Services
By eliminating middle-tier trading agencies, DERCHI ensures transparent pricing, strict QA oversight, and direct engineering collaboration. Over 600 skilled technicians, metallurgists, and quality control specialists support your project from initial CAD drafting through container loading.