Commercial Grade
Commercial Anti-Corrosion Accordion Folding Sliding Doors
Qualicoat Class 2
5+12A+5 Double IGU
Stainless Steel Rollers
Precision Structural Systems
Featured Commercial & Residential Aluminium Double Glazed Door Systems
Constructed with high-tensile 6063-T6 architectural aluminium alloys, multidirectional polyamide (PA66 GF25) thermal barriers, and argon-charged tempered insulated glazing units, our standard and custom configurations fulfill stringent global building codes.
Architectural Patio
Modern Lockable Waterproof Bifold Double Glazed Patio Doors
Water Tightness ≥450Pa
Multi-Point German Locks
U-Value 1.4 W/m²K
Modular System
Tambour Precision Roller Door Kit with Spirals & Track Fixings
Silent Glide Tracks
Anodized Matt Finish
Custom Mill Dimension
Interior Minimalist
Slimline Profile Glazed Partition & Interior Architectural Door
16mm Narrow Bezel
Tempered Safety Glass
Concealed Damped Pivot
High Security
Heavy Duty Ballistic & High-Impact Stacking Sliding Door System
RC3 / EN 1627 Tested
Laminated PVB/Sentry
Extreme Wind Load 4500Pa
Thermal Break
Custom Insulated Aluminium Double Glazed Folding Patio Doors
Polyamide Strip 24mm
Argon Filled Low-E
Sound Barrier 38dB
Villa Panoramic
Villa Waterproof Multi-Panel Aluminium Glass Folding Doors
Flush Drain Track
Up to 6000mm Spans
CE EN 14351-1
Integrated Screen
3-Track 4-Panel Sliding Patio Door with Stainless Fly Screen
Triple Rail Extrusion
Anti-Lift Locking Bolts
Air Class 4 (EN 12207)
Engineering Specification Deep-Dive
Aluminium Double Glazed Door Physical Performance Benchmarks
For structural engineers, façade consultants, and procurement directors, thermal boundaries and wind loading determine project viability. Below are verified baseline capabilities engineered across our OEM/ODM custom profiles.
| Performance Parameter | Harmonized Test Standard | DERCHI Engineering Capability | Commercial & Environmental Impact |
|---|---|---|---|
| Overall Thermal Transmittance (Ud / Uw) | EN ISO 10077-1 / EN ISO 10077-2 | 0.9 – 1.4 W/(m²·K) | Exceeds German GEG, UK Building Regs Part L, and US Energy Star criteria, reducing HVAC lifecycle overhead. |
| Acoustic Attenuation (Rw / STC) | EN ISO 717-1 / ASTM E413 | 36 dB – 44 dB | Dual-chamber unequal thickness glass (e.g., 6mm + 12Ar + 8mm laminate) damps low-frequency urban transport rumble. |
| Air Permeability | EN 12207 / ASTM E283 | Class 4 (≤3 m³/[h·m²] @ 600Pa) | Continuous EPDM multi-fin co-extrusion prevents drafting, internal moisture condensation, and winter air infiltration. |
| Water Tightness Under Dynamic Pressure | EN 12208 / ASTM E331 | Class 9A / E900 (≥900 Pa) | Sub-frame decompression chambers drain hydrostatic pressure during high-velocity tropical and coastal squalls. |
| Wind Load Structural Deflection | EN 12210 / AS 2047 (N6) | Class C5 / ≥4500 Pa | Heavy-gauge alloy webs prevent glass blowout or perimeter seal rupture on high-rise residential installations. |
| Burglar & Intrusion Resistance | EN 1627 – EN 1630 / PAS 24 | RC2 / RC3 Configuration | Multipoint perimeter shoot-bolts, anti-drill cylinder shields, and internal glazing beads eliminate external prying. |
Strategic Sourcing Intelligence
Future Sourcing Trends for Aluminium Double Glazed Doors
The international architectural supply chain is undergoing profound structural shifts driven by regulatory tightening, embodied carbon accounting, and digitized site integration.
Low-Carbon Circular Metallurgy
B2B buyers in the EU and North America increasingly mandate audited Environmental Product Declarations (EPDs). Sourcing is pivoting rapidly toward secondary (post-consumer scrap) aluminium billets melted via renewable hydropower, dropping embodied carbon from 18 kg CO2/kg to under 4.0 kg CO2/kg.
- Certified low-carbon primary extrusion alloys
- Fully disassemblable PA66 thermal break polymers
- LEED v4.1 and BREEAM compliance documentation
Direct Factory BIM Integration
The era of static 2D paper drafting has ended. Institutional contractors require OEM/ODM suppliers to feed parameterized Revit/IFC digital models directly into the building's digital twin, verifying structural anchor points, floor clearance tolerances, and facade MEP coordination before metal extrusion commences.
- Parametric BIM objects with live LOD 350-400 detail
- Elimination of on-site frame re-machining errors
- Automated barcoding for installation sequence logistics
Tier-1 Qualified Consortium Sourcing
To bypass regional fabrication capacity shortages in Europe, Australia, and North America, developers now forge direct Tier-1 OEM partnerships. By sourcing complete door assemblies with matched German/Italian hardware from a single large-scale Chinese manufacturer, clients slash supply chain risks and lead times.
- Pre-hung, tested subassemblies direct from factory
- Bulk price predictability over volatile local fabricators
- Containerized, site-ready sequence packaging
Product Engineering Evolution
Key Technological Advancements in Aluminium Double Glazed Fenestration
Double glazing has evolved far beyond two sheets of float glass in a hollow metal sash. Contemporary architecture demands composite thermal barriers, vacuum-insulated cavity physics, and smart motorization.
Polyamide Multicavity Isobaric Design
Standard single-strip thermal breaks are replaced by intricate 24mm to 34mm multi-chamber PA66 GF25 insulative webs. Filled with low-density expanded polyolefin foams, these systems nullify convective heat transfer within the extrusion cavity, enabling slim frame sightlines while delivering Uf values down to 1.1 W/(m²·K).
Warm-Edge & Magnetron Low-E Sputtering
Cold aluminium spacer bars have been universally superseded by composite structural warm-edge spacer matrices (silicone or polypropylene with stainless steel micro-barriers). Paired with off-line magnetron triple-silver Low-E coatings and 90% argon gas fills, the risk of perimeter edge condensation is eradicated.
Automated Mechatronic Drive Systems
For large-format sliding doors with panel weights up to 400kg, concealed brushless DC electric linear drives are embedded invisibly into the top transom profile. Integrated with building automation protocols (KNX/BACnet), the system combines anti-pinch laser curtain safety with app and smart sensor actuation.
Procurement Intelligence • FAQ
Frequently Asked Technical & Commercial Questions
Clear, unequivocal guidance for general contractors, architectural specifiers, and window/door importers looking to partner with our manufacturing base.
What alloy grade and temper do you employ for primary structural extrusions?
We strictly utilize primary virgin aluminium 6063-T5 or 6063-T6 architectural alloy conforming to EN 573-3 and ASTM B221. Wall thicknesses range from 1.6mm for standard residential casements to 2.2mm-3.0mm for commercial curtain wall transoms and heavy bi-fold stiles, guaranteeing deflection parameters within L/175 limits.
How do you substantiate product compliance with European CE (EN 14351-1)?
Every export order is accompanied by an authenticated Declaration of Performance (DoP). DERCHI maintains initial type-test (ITT) reports verified by accredited notified bodies for air permeability, water tightness, wind resistance, and thermal transmittance. Our factory operates under audited ISO 9001 factory production control (FPC).
Can you manufacture custom extrusion shapes or proprietary architect dies?
Yes. Our in-house engineering wing creates custom extrusion dies from customer CAD/SolidWorks geometries. Die fabrication lead time averages 12–18 days, followed by sample extrusion strike-offs, mechanical testing, and surface finish validation prior to mass batch run authorization.
What hardware brands and multi-point locking gear are integrated?
We provide full system compatibility with leading European hardware lines (Siegenia, Roto, GU, Hoppe) as well as certified premium Tier-1 domestic architectural hardware. Standard configurations incorporate multi-point perimeter anti-lift mushroom cams, gearboxes with 100,000-cycle life testing, and 304/316 stainless steel friction stays.
How are the insulated glass units (IGU) sealed against inert gas leakage?
Our automated dual-seal robotic line applies a primary polyisobutylene (PIB) seal to block moisture and gas vapor migration, followed by a secondary structural two-part silicone or polysulfide perimeter seal. Gas retention tests ensure argon escape rates remain below <1% per annum, guaranteeing longevity beyond 25 years.
What export packaging standards are used to prevent freight damage?
Every frame and sash is wrapped in protective peelable film, protected by custom corner guards, sealed in multi-layer foam envelopes, and crated in fully-enclosed, fumigated ISPM-15 plywood crates. Steel A-frame stillages are utilized for oversized pre-glazed panels, secured directly inside shipping containers via high-tension dunnage.
Request Detailed Technical Dossier & BIM Catalog
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