500-Unit Casement + Fixed System — R&F Guangzhou Development
500-Unit Casement + Fixed System — R&F Guangzhou Development
500 units of typhoon-zone-compliant thermal-break casement + fixed windows for a high-rise residential development in Zhujiang New Town. Delivered on-time across 18 months of phased handovers.
The Challenge
South China code requires wind-load resistance to 4.5 kN/m² for buildings above the 30th floor. The developer also needed argon-filled hollow glass with 27A cavity spec to hit the residential thermal transmittance target. Compressed development schedule required 500 units delivered across 6 towers in 18 months with zero delays.
The Solution
We combined our 120 Thermal-Break Casement (opening units) with matching 110 Double In-Swing configurations for balcony access. Multi-chamber structure with integrated isobaric sealing strips + 27A large hollow glass with argon significantly improved the whole-window U-value. Hidden drainage system eliminated the risk of rainwater backflow during typhoon events.
Key Product Features
- 27A large hollow glass with argon fill for superior thermal insulation
- Multi-chamber structure with integrated isobaric sealing
- Hidden drainage prevents rainwater backflow in typhoon conditions
- Whole-window joint glue-injection process (no visible seams)
- Base-free British handle design (minimalist aesthetic)
- Ground drain-style drainage system
Technical Specification
| Parameter | Specification |
|---|---|
| Product Family | 120 Thermal-Break Casement + 110 Double In-Swing |
| Profile Thickness | 2.0mm aluminum (typhoon-grade) |
| Outer Frame Width | 120mm / 110mm |
| Glass Configuration | 5+27Ar+5 tempered (27A cavity + argon) |
| Hardware | HOPPE (Germany) handles + Roto multi-point lock |
| Wind Load Rating | ≥4.5 kN/m² (30F+ compliant) |
| Drainage | Ground drain-style hidden system |
| Air Infiltration | Class 4 tested |
| Sound Reduction | 38 dB Rw |
| U-value (whole) | ≤1.5 W/m²K |
| Total Units Delivered | 500 units across 6 towers |
| Delivery Timeline | 18 months, zero delay |
Architect's Recommendation: For any high-rise project above the 30th floor in Guangdong / Fujian / Hainan, spec the 120 series over the 105 — you'll need the extra profile chamber for wind-load class jump. Below 30F, 105 is sufficient. The 27A cavity is a hard requirement for the argon fill to actually deliver its thermal advantage; smaller cavities lose the argon effect.
"500 units delivered in 18 months with zero scheduling delays. In a market where 6-month delays are typical, that alone justified choosing TWD. The windows themselves performed beautifully in the 2024 Guangzhou typhoons."
— Project Manager, R&F Guangzhou
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