Engineered in Foshan, China to European standards. All units feature high-tensile 6063-T5 profile extrusions, multi-point gearboxes, continuous EPDM gaskets, and modular customization.
Heavy-duty pleated mesh integrated into custom aluminium frames, providing smooth insect barrier protection for large bi-fold patio openings without compromising aesthetic sightlines.
Passive House Institute certified alu-wood composite fenestration offering superior thermal insulation, soundproofing acoustic dampening, and elegant timber interior finishes.
Weathertight industrial and commercial aluminium roof hatches with gas spring assistance, double-lip seal rubber gaskets, and reinforced structural loading capability.
NFRC-certified hurricane impact resistant windows featuring SGP laminated safety glass, PA66 polyamide thermal breaks, and structural wind resistance designed for coastal environments.
Compliant with Australian AS2047 fenestration codes, these multi-track stacker sliding doors deliver expansive double-glazed glass walls engineered for coastal wind load and water tightness.
Precision-engineered awning and casement windows utilizing heavy-duty hand crank operators, continuous perimeter weather stripping, and thermal break frames for effortless ventilation.
Modern industrial Crittall-style slim aluminum French doors combining vintage steel-look aesthetic glazing bars with contemporary thermal break efficiency and double-tempered glass.
Custom structural aluminium sunroom enclosures built with heavy-duty thermal break rafters, high-transmittance Low-E tempered safety glass, and integrated roof drainage channels.
In modern architectural design, the integration of folding doors (bi-fold wall systems) with embedded window sashes represents a major evolutionary leap in building envelope technology. According to European Standard EN 14351-1:2006+A2:2016, exterior pedestrian doorsets and windows must satisfy stringent criteria covering structural wind load, thermal transmittance, air permeability, and water tightness.
CE certified folding door systems manufactured by VELTOR utilize high-grade 6063-T5 / 6060-T66 primary architectural aluminium extrusions with minimum wall thicknesses ranging from 2.0mm to 3.0mm depending on height requirements. Unlike standard residential doors, bi-fold systems bearing window cut-outs require amplified torsional rigidity to handle wind load pressures exceeding 3000 Pa (Class C5 under EN 12210).
To eliminate thermal bridging across large expansive glass facades, our multi-chamber profile designs integrate 24mm to 34mm Polyamide PA66 reinforced with 25% glass fiber (PA66GF25) insulating struts. This structural separation enables overall system U-values (Uw) to drop as low as 1.1 W/m²K when combined with warm-edge spacer bars and triple Low-E argon filled glazing units.
| Performance Characteristic | Test Standard | CE Benchmark / Rating | VELTOR Engineering Spec |
|---|---|---|---|
| Thermal Transmittance (Uw) | EN ISO 10077-1 / EN ISO 10077-2 | Uw ≤ 1.4 W/m²K | Uw 1.1 - 1.3 W/m²K (Triple Glazed Low-E) |
| Air Permeability | EN 12207 | Class 3 or Class 4 | Class 4 (600 Pa test pressure) |
| Watertightness | EN 12208 | Class 7A - 9A | Class E1050 (1050 Pa continuous spray) |
| Resistance to Wind Load | EN 12210 | Class B3 / C4 | Class C5 (Deflection < 1/300 at 2500 Pa) |
| Acoustic Insulation (Rw) | EN ISO 140-3 / EN ISO 717-1 | Rw ≥ 32 dB | Rw 38 - 44 dB (Laminated Acoustic Glass) |
