Manufactured in Foshan under rigorous ISO9001 and CE compliance, our slimline aluminum profiles emulate classic Crittall aesthetics while providing high-performance Mediterranean thermal and acoustic protection.
Barcelona's urban landscape presents an exceptional architectural convergence. From the geometric grandeur of Ildefons Cerdà's 19th-century Eixample district to the industrial warehouses of Poblenou transformed by the 22@ innovation initiative, building professionals increasingly specify Crittall-style glazing systems. However, traditional hot-rolled mild steel poses substantial challenges along the Mediterranean coastline: vulnerability to saline oxidation, excessive structural dead weight, poor thermal transmittance, and cost-prohibitive site adjustments. As a premier direct-export manufacturing powerhouse in Foshan, China, our engineered thermally broken aluminum Crittall-style systems overcome these systemic limitations.
By utilizing high-purity architectural-grade 6063-T5/T6 aluminum alloy extrusions paired with precision-engineered 24mm to 34mm technoform polyamide insulating struts (PA66-GF25), our fenestration engineering achieves the ultra-slim visual sightlines demanded by historical conservation bodies without sacrificing compliance with Spain's rigid thermal regulations (Código Técnico de la Edificación - CTE DB-HE). The resulting assemblies deliver structural stability against wind loads, superior thermal barriers, and exceptional resistance to coastal salt-spray corrosion when protected by Qualicoat Seaside certified fluorocarbon (PVDF) and polyester powder coatings.
For demanding residential renovations in Sarrià-Sant Gervasi and luxury boutique hotels in Ciutat Vella, thermal efficiency cannot be compromised for aesthetics. Our China manufacturing facility produces precision Simulated Divided Lite (SDL) profiles featuring CNC-machined internal spacer bars matching exterior grid lines. This ensures continuous insulated double or triple glazing—eliminating the dozens of thermal bridge vulnerabilities and perimeter leak points common in traditional true divided single-pane steel doors.
When evaluating fenestration schedules for multi-residential and commercial contracts across Barcelona, project engineers and quantity surveyors must measure lifetime life-cycle costs (LCC) against raw material procurement outlays. The comparative matrix below outlines why high-grade thermally broken aluminum has decisively superseded mild steel in Southern European refurbishment.
| Technical Parameter | Standard Mild Steel Crittall | DERCHI Thermally Broken Aluminum | CTE Spain (Barcelona Zone C2) Norm |
|---|---|---|---|
| Frame U-Value ($U_f$) | 4.5 – 6.2 W/m²K (Severe Heat Bridging) | 1.3 – 1.8 W/m²K (PA66 Thermal Break) | Mandatory Compliance (< 2.1 W/m²K) |
| Corrosion Resistance | Susceptible to galvanic rust; ongoing touch-ups | Qualicoat Seaside Class 2 (Zero Rust) | UNE-EN ISO 12944-2 C3/C4 Marine Grade |
| Acoustic Insulation ($R_w$) | 28 – 32 dB (Limited pane thickness) | 36 – 43 dB (Acoustic laminated Low-E) | CTE DB-HR Urban Acoustic Threshold |
| Weight per Square Meter | 45 – 65 kg/m² (Requires floor reinforcing) | 20 – 32 kg/m² (Ideal for heritage timber joists) | Compliant with structural dead-load limits |
| Sightline Width (Stile/Rail) | 25mm – 38mm | 28mm – 42mm (Slimline Architectural) | Preserves historical aesthetic fidelity |
| Manufacturing & Freight Lead | European artisan lead time: 16–24 weeks | Direct Factory: 3–4 weeks + ocean container | Flexible for high-volume phased deliveries |
Every district in the Barcelona Metropolitan Area demands unique architectural sensitivity, strict compliance with heritage ordinances, and specific environmental resilience against Mediterranean microclimates.
High-ceilinged pisos senyorials require interior partitions that preserve hydraulic tiled floors and ornate plaster moldings. Our floor-to-ceiling aluminum Crittall pocket doors and sliding systems separate formal dining rooms from modern open kitchens without requiring intrusive floor tracks, preserving precious mosaic ceramics.
Former textile mills, printing plants, and brick factory lofts converted into creative tech headquarters and luxury duplexes demand authentic industrial aesthetic cues. We engineer custom floor-to-ceiling black-grid pivot doors and acoustic glass office enclosures capable of dampening 40+ dB of commercial ambient sound.
Properties fronting the Balearic Sea face relentless moisture, extreme solar radiation, and wind-driven saline mist. Our thermally broken Crittall-style exterior sliding patio and bifold assemblies feature marine-grade PVDF coatings, stainless-steel 316 rollers, and high-performance Solar-E coatings to deflect Mediterranean solar gains.
Historic vaulted spaces converted into Michelin-starred dining rooms, artisanal boutiques, and wine bars demand striking commercial entrances with high opening frequencies. We integrate German-engineered concealed overhead door closers, magnetic latches, and heavy-duty multi-point locking systems tested to over 100,000 cycles.
Leading architectural studios in Barcelona (such as those centered in Sant Antoni and Sarrià) are specifying bespoke glazing that marries bioclimatic performance with minimalist industrial expressionism.
With the European Union Energy Performance of Buildings Directive (EPBD) driving aggressive Spanish decarbonization targets, non-insulated steel doors are no longer code-compliant for exterior building envelopes. Architects across Catalonia specify our thermally separated aluminum profiles with warm-edge spacers, achieving overall frame $U$-values below 1.5 W/m²K, enabling historical renovations to comfortably attain Passivhaus and BREEAM certifications.
From the nocturnal vibrant pedestrian activity of Enric Granados to major vehicular corridors like Avinguda Diagonal and Gran Via, noise pollution in central Barcelona is a significant residential concern. Modern buyers reject noisy single-glazed heritage ironwork. Our assemblies accommodate up to 32mm acoustic PVB laminated double-glazed panes, delivering sound reduction indices exceeding Rw 42 dB while preserving fine steel-look muntin lines.
While classic RAL 9005 Jet Black matt remains the staple finish, Catalonian interior designers increasingly demand nuanced, tactile finishes that complement raw Catalan brickwork and micro-cement surfaces. Our factory fulfills wholesale custom orders in deep bronze, architectural champagne anodized, warm corten-rust powder coats, and refined textured iron-glimmer finishes that flawlessly integrate with Mediterranean palettes.
As the brand of Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI), we provide European importers, building contractors, and real estate developers with transparent, factory-direct manufacturing capabilities.
Every fenestration batch ships with complete CE Declarations of Performance (DoP), factory test reports for wind load (UNE-EN 12210), air permeability (UNE-EN 12207), and watertightness (UNE-EN 12208) verified for local building control inspections in Spain.
Avoid site installation discrepancies. Our specialized engineering division creates detailed CAD shop drawings, elevation details, wall jamb interface sections, and sub-frame integration plans before metal extrusion and CNC cutting commence.
We provide full container load (FCL) and consolidated less-than-container (LCL) shipments via direct sea routes to the Port of Barcelona (ZAL Port). All goods are secured within fumigated steel-reinforced plywood crates with anti-moisture barrier wraps.
By eliminating multiple tiers of European trading intermediaries and regional distributors, Catalonian developers and window fabricators unlock factory-direct wholesale rates that significantly protect project margins on luxury developments.
Clear, direct answers regarding CTE compliance, maritime logistics, structural specifications, and Chinese factory export procedures.
Yes. Our exterior thermally broken aluminum assemblies comply with the thermal parameters outlined in the Código Técnico de la Edificación (CTE) Documento Básico HE (Ahorro de Energía) for Climate Zone C2 (Barcelona). When glazed with argon-filled, double or triple Low-E insulated glass units, our door systems comfortably achieve Uw values between 1.3 and 1.6 W/m²K, well within national building code standards.
Traditional mild steel, even when hot-dip galvanized, eventually oxidizes at welded joints when exposed to the high humidity and airborne marine salts of seaside communities like Poblenou, Sitges, or Badalona. Our 6063-T5/T6 aluminum alloy is naturally rustproof and finished with Qualicoat Seaside certified powder coatings or PVDF treatments, ensuring no corrosion, peeling, or fading over decades of coastal exposure.
Following final approval of the CAD shop drawings, fabrication in our Foshan facility typically takes 25 to 35 calendar days depending on project volume and custom profile complexity. Ocean transit from Shenzhen/Guangzhou ports to the Port of Barcelona (Port de Barcelona) generally requires 28 to 34 days, allowing developers to plan delivery schedules reliably.
Absolutely. Operating advanced 5-axis CNC machining centers, we routinely manufacture oversized pivot doors up to 3.5 meters in height and 2.0 meters in width with integrated floor springs (such as Dormakaba or Geze hardware). We also bend structural thermal break profiles into semi-circular, segmental, and gothic arches to match historic Eixample and Gothic Quarter masonry openings.
Export fenestration products are individually protected with protective surface films, encased in custom high-density pearl cotton corner guards, and sealed within fully enclosed fumigated plywood crates built on heavy-duty wooden skids suitable for crane and forklift maneuvering at Barcelona customs warehouses (ZAL).
For every export shipment, our international logistics department issues commercial invoices with verified HS codes (typically 761010 for aluminum doors and windows), packing lists, bills of lading (B/L), CE Declarations of Performance (DoP), factory test certificates, and Certificates of Origin to streamline customs processing with your designated customs broker (agente de aduanas).
Whether you require a complete multi-residential window and door schedule quotation, bespoke CAD millwork shop drawings, or sample corner extrusions delivered to your Barcelona office—connect directly with our Foshan engineering export desk today.