Fabricated in our 180,000 m² Foshan facility using aircraft-grade 6063-T6 virgin aluminium alloys, multi-cavity thermal break extrusions, and certified acoustic safety glazing for Southeast Asian building envelopes.
Singapore presents a hyper-specific climatic and regulatory ecosystem: heavy monsoon precipitation exceeding 2,100 mm annually, relentless UV exposure, dense urban acoustics along major transport arteries, and stringent Building and Construction Authority (BCA) thermal transfer benchmarks.
In high-density developments across Tanjong Pagar, Marina South, and Orchard, high-altitude wind pressure presents severe challenges. Standard windows suffer seal fatigue and water back-siphonage. DERCHI engineered bay windows integrate continuous EPDM compression gaskets, internal drainage equalization cascades, and SS 212 / SS 381 safety specifications. Deep bay projections allow panoramic sightlines while framing the structural cantilever to shield the interior against harsh vertical solar heat gain.
For Good Class Bungalows (GCBs) and oceanfront luxury villas along the East Coast and Sentosa Cove, atmospheric salt spray rapidly pits inferior aluminium extrusions. We implement fluoropolymer PVDF electrostatic surface coatings exceeding AAMA 2605 specifications (25-micron minimum thickness). Our 45-degree and 90-degree bay window configurations combine cantilevered structural silicone glazing with custom thermal break columns, delivering unobstructed ocean horizons alongside impervious sea-salt corrosion resilience.
The urban regeneration of older housing estates (such as Bishan, Marine Parade, and Tampines) demands compliance with stringent weight restrictions and HDB approved retrofitting guidelines. Our slim-profile aluminium bay windows replace aging timber or single-pane units, featuring customized structural transoms and friction stays tested to over 50,000 cyclic actuations without sash drop. This enhances usable interior room volume by up to 1.8 m² while slashing external expressway acoustic intrusion by 38–42 dB.
| Performance Parameter | Singapore Standard / BCA Requirement | DERCHI Tropical Bay Window Specification | Compliance Status |
|---|---|---|---|
| Structural Wind Load | SS 212 / ASTM E330 Design Wind Pressure up to 2.5 kPa | Tested to 3.5 kPa (Serviceability) / 5.25 kPa (Safety Test) | ✓ Certified Exceeded |
| Water Penetration Resistance | Zero water leakage at test pressure of 300 Pa (SS 381) | Multi-tiered weep channels with non-return flap tested to 700 Pa | ✓ Monsoonal Rated |
| Envelope Thermal Value (ETTV) | BCA Maximum 38 W/m² (Commercial/Residential baseline) | U-value ≤ 1.45 W/m²K, Solar Heat Gain Coefficient (SHGC) ≤ 0.26 | ✓ Green Mark SLE Ready |
| Acoustic Attenuation (STC) | Recommended STC 32 for major arterial boundaries | Double-glazed Low-E + Acoustic PVB Interlayer (STC 40–44 dB) | ✓ Express-Transit Acoustic |
| Surface Marine Durability | High humidity & marine chloride resistance | Qualicoat Class 2 Super-Durable Powder / AAMA 2605 PVDF Coating | ✓ 25-Year Warranty |
As Singapore intensifies its Singapore Green Plan 2030, building envelopes must balance aesthetic daylighting with stringent thermal efficiency. The transition towards Super Low Energy (SLE) and Zero Energy Buildings (ZEB) has fundamentally changed bay window engineering.
Historically, tropical bay windows utilized monolithic aluminium sections that acted as thermal bridges, bleeding air conditioning energy. The Singapore market has aggressively pivoted to polyamide PA66 GF25 thermal breaks. This decouples exterior solar radiation from chilled interior living areas, eliminating frame sweat and reducing compressor load across domestic cooling units by up to 34%.
Modern architectural layouts in District 9 and Sentosa embrace full-height 3D bay alcoves. The design trend demands high Visible Light Transmittance (VLT ≥ 65%) paired with an ultralow Solar Heat Gain Coefficient (SHGC ≤ 0.24). By integrating triple-silver magnetron sputtering Low-E glass, our bay windows block short-wave infrared rays while preserving pristine natural vistas.
High-rise residential units in Punggol and Tengah feature automated trickle vents integrated into bay transoms. These intelligent trickle sashes open automatically during rain-free hours to encourage passive stack ventilation, automatically clamping shut upon sensing rain drop impact via rain-wind sensors, preventing water damage without occupant intervention.
Modern Singapore architecture centers on indoor-outdoor connectivity. Cantilevered bay windows are designed not merely as vision portals, but as integrated interior seating ledges, planter boxes, and study alcoves. Engineering these elements requires structural load calculation of up to 450 kg live load on lower sill ledges without frame deflection.
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) operates from the global epicenter of precision aluminium extrusion in Foshan, China. We supply Singapore's most demanding contractors, structural consultants, and luxury home developers with bespoke, factory-tested fenestration.
Our vertical integration covers 3D computer-aided parametric design, profile extrusion, CNC multi-axis milling, automated glass insulating lines, and robotic sealant application. Unlike brokers or trading intermediaries, DERCHI controls every stage from shop-drawing drafting to final on-site installation guidance.
Our proprietary invention patent—the Four-Side Six-Point Lock—pulls the operable bay sashes tight against the master frame along all four edges. This creates an airtight envelope that stops the intense negative pressure drafts and moisture ingress common in Singapore's 30+ storey high-rise residential towers.
DERCHI's window assemblies hold recognized global certifications: Australia AS2047, North American NFRC, European CE, Canadian CSA, and ISO 9001. For Singapore project submissions, our structural engineering department supplies complete structural wind calculation sheets, water tightness test logs, and shop drawings directly to Qualified Persons (QPs) and Façade Consultants.
Located in the heart of the Pearl River Delta, DERCHI operates a short maritime route to Singapore's PSA Port. Goods travel from Nansha or Shekou Port to Singapore in just 4 to 6 days. Every consignment uses custom steel-reinforced crate packing, desiccants, and shock sensors to protect powder-coated finishes during tropical ocean transit.
Key technical, regulatory, and logistics answers for local architects, developers, main contractors, and private homeowners specifying aluminium bay windows from China.