Explore our heavy-duty, factory-direct structural window and patio door units engineered with multi-chamber thermal breaks, airtight EPDM perimeter barriers, and acoustic isolation suited for Central European architecture.
Operating from our intelligent production campus in Foshan, Guangdong (Dejiyoupin Doors & Windows), we supply structural envelope systems to major construction contractors, architects, and fenestration distributors in Slovakia and across Central Europe.
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Years of Fenestration Mastery
The Slovak Republic features a pronounced continental climate demanding rigorous fenestration engineering. From the sub-zero alpine conditions of the High and Low Tatras (Poprad, Žilina, Banská Bystrica) to the hot, humid summer extremes of the Danubian Lowland (Bratislava, Trnava, Nitra), exterior big windows face heavy thermal expansion cycles and wind pressures.
Under Slovak national standard STN 73 0540-2 (Thermal Performance of Buildings), contemporary residential construction and deep retrofits mandate primary thermal transmittance values ($U_w$) typically reaching below $0.85\, \text{W}/(\text{m}^2\cdot\text{K})$ to fulfill Energy Class A0 benchmarks. To achieve this, our bespoke large-format aluminum windows integrate multi-chamber polyamide thermal barriers (PA66 GF25), triple-pane low-E insulated glass units (IGU) backfilled with 90%+ Argon gas, and warm-edge composite spacers.
Furthermore, structural rigidity remains critical for modern Slovak architectural styles favoring floor-to-ceiling panoramic sliding panels (HS Portal) and oversized glass walls. Our factory employs premium aviation-grade 6063-T6 and 6061-T6 aluminum alloys with reinforced wall thicknesses (up to 3.0mm in load-bearing transoms), enabling architects to design uninhibited glazing heights exceeding 3.5 meters while meeting EN 12210 Wind Load Resistance Class C5 standards.
Targeted aluminum envelope systems designed to resolve the microclimatic and structural dynamics of Slovak building typologies.
Common in Bratislava-Záhorská Bystrica, Senec, and Košice suburbs. Minimalist big lift-and-slide doors maximize solar heat gain in winter while providing seamless indoor-outdoor transition to patios and landscaped gardens.
Demanded across the High Tatras, Liptov, and Orava regions. Heavy snow load tolerances, robust triple-pane tempered glass, and thermal-break profiles withstand driving mountain blizzards, wind gusts, and wide temperature swings.
Prevalent in industrial redevelopments in Bratislava (Ružinov, Staré Mesto). Slim industrial-profile big windows maintain heritage aesthetics while dramatically enhancing acoustic isolation (up to Rw 45dB) against urban rail and traffic noise.
Boutique hotels, thermal spas (Piešťany, Rajecké Teplice), and corporate headquarters. Engineered curtain walls and high-dimension casements with solar-control low-E coatings maintain structural integrity under continuous foot traffic.
Understanding shifting regulatory directives, energy mandates, and architectural preferences defining the Slovak construction landscape.
Since 2021, all newly constructed residential and public buildings in Slovakia must adhere to nearly Zero-Energy Building (nZEB) standards. As a result, standard double glazing is practically obsolete for new permits, driving the rapid adoption of deep structural profiles (80mm to 105mm depth) that accommodate warm multi-layer IGUs reaching Passive House standards.
Universal design and barrier-free living are driving widespread demand across Slovakia for zero-threshold lifting-sliding systems. Architects consistently specify embedded ground frames where interior parquet and exterior composite decking sit at identical elevations, requiring precision-extruded aluminum sub-frame drainage and high-durability stainless guide tracks.
With summer temperatures in Southern Slovakia frequently surpassing 35°C, external aluminum venetian blinds (žalie) and integrated roller shutters (rolety) are standard inclusions. Modern aluminum big window profiles are engineered to integrate concealment boxes and lintel guides directly into the head frame, preventing air leakage and thermal bridges.
To help Slovak developers, general contractors, and specifiers make data-backed procurement choices, the matrix below outlines engineering metrics across key structural parameters:
| Engineering Attribute | Standard UPVC Window | Conventional Standard Alu | DERCHI Slovakia Specification Alu |
|---|---|---|---|
| Frame Thermal Insulation ($U_f$) | 1.1 – 1.4 W/(m²K) | 1.6 – 2.0 W/(m²K) | 0.85 – 1.1 W/(m²K) (Polyamide Barrier) |
| Overall Window Metric ($U_w$) | ~1.0 – 1.2 W/(m²K) | ~1.3 – 1.5 W/(m²K) | 0.75 – 0.85 W/(m²K) (Passivhaus Capable) |
| Maximum Sash Height | Up to 2.3 m | Up to 2.7 m | Up to 3.8 m (Reinforced T6 Alloy) |
| Air Permeability (EN 12207) | Class 3 | Class 3 / Class 4 | Class 4 (Continuous EPDM Vulcanized Gaskets) |
| Watertightness (EN 12208) | Class 7A – 9A | Class 8A | Class E1050 / E1200 (Severe Storm Proof) |
| Acoustic Isolation ($R_w$) | 32 – 36 dB | 34 – 38 dB | Up to 45 dB (Laminated Acoustic Core) |
Eliminate intermediary markups while gaining full access to high-capacity engineering, rapid prototyping, and international certification compliance.
Situated in the capital of aluminum manufacturing in China, our 180,000㎡ factory benefits from immediate supply chains of premium billets, anodizing plants, and automated CNC extrusion centers, guaranteeing unbeatable production timelines.
Our dedicated engineering department converts your architectural tender drawings, structural opening schedules, and static calculations into precise CAD fabrication drawings and BIM models without preliminary drafting fees.
We seamlessly integrate European hardware systems including Siegenia, GU, Roto, and Savio locking gears, alongside our heavy-duty proprietary hardware, ensuring intuitive maintenance, operation, and local parts compatibility in Slovakia.
Oversized glazing units are secured within customized steel A-frames and fumigated solid timber crates, wrapped with desiccant protection against maritime moisture during transit to European container hubs (Koper, Hamburg) and onward rail to Slovakia.
Detailed insights into customs, logistics, certifications, and technical parameters common to Slovak commercial developers and distributors.
Yes. We engineer thermal break window systems specifically configured to reach $U_w$ values ranging between $0.78\, \text{W}/(\text{m}^2\cdot\text{K})$ and $0.85\, \text{W}/(\text{m}^2\cdot\text{K})$. When paired with our 48mm–52mm triple-pane insulated glass packages with warm-edge spacers, our systems easily meet and exceed Slovak Energy Class A0 requirements for both newly built residential units and commercial envelopes.
Ocean freight shipments departure from Shenzhen or Guangzhou ports directly to the Port of Koper (Slovenia) or Hamburg (Germany), which takes approximately 26 to 32 days on water. From Koper or Hamburg, intermodal containerized rail or road freight transfers goods directly to customs terminals and consolidation sites in Bratislava, Žilina, or Košice within 3 to 5 business days.
Absolutely. All windows and door systems supplied to European Union member states carry official CE marking conforming to harmonized standard EN 14351-1. We provide full Declarations of Performance (DoP), airtightness, wind-load resistance (EN 12210), and water tightness (EN 12208) test reports to ensure seamless sign-off by Slovak regional building control authorities (Stavebný úrad).
Yes. Our electrostatic powder-coating lines are Qualicoat certified, utilizing AkzoNobel and Tiger Drylac architectural powders. For Slovakia, the most commonly requested options include RAL 7016 (Anthracite Grey), RAL 9005 (Jet Black), and textured DB 703 metallic finishes with specialized UV-resistance and a minimum 15-to-25 year finish guarantee against chalking and fading.
We archive every project’s fabrication drawings, glass cut schedules, and hardware serials in our digital ERP repository. Furthermore, our frame systems are engineered using standard European glazing bead channels and universal euro-groove hardware dimensions. This permits local glazing teams in Slovakia to effortlessly source or replace hardware gear or IGU panes on-site if ever required.
Yes, full consolidation is one of our key competitive advantages. As an integrated manufacturer, we allow Slovak contractors to mix architectural big windows, luxury pivot entrance doors, cast aluminum gates, interior wooden doors, and garage doors into a single coordinated shipment, optimizing shipping volume and saving considerable local handling costs.
Whether you require tender pricing, complete CAD engineering calculations, or physical sample corners delivered to your office in Bratislava, Košice, or Žilina, our senior bilingual engineering desk is ready to support your timeline.