A flagship 40-storey mixed-use development in the heart of Foshan's Qiandeng Lake CBD, combining high-end retail, serviced apartments and a hotel in a single tower. The facade had to perform to demanding energy targets — a whole-building U-value of 2.0 W/(m²·K) for the curtain wall and 1.6 W/(m²·K) for the hotel's premium zones — while presenting a calm, blue-tinted glazed face to the city.
A flagship 40-storey mixed-use development in the heart of Foshan's Qiandeng Lake CBD, combining high-end retail, serviced apartments and a hotel in a single tower. The facade had to perform to demanding energy targets — a whole-building U-value of 2.0 W/(m²·K) for the curtain wall and 1.6 W/(m²·K) for the hotel's premium zones — while presenting a calm, blue-tinted glazed face to the city.
Architectural rendering
The design intent sets two vertically framed towers above a shared podium, using continuous horizontal facade bands and sharpened roof lines to give the high-rise apartment development a calm, recognisable silhouette in Foshan's Qiandeng Lake CBD.
Rendering shown for architectural design context; delivery photography appears below.Each chapter records a decision the next project team can evaluate: intent, performance, production and site delivery.
The project sits in a hot-summer / warm-winter climate, so the energy brief was as much about controlling solar gain as it was about retaining conditioned air. We specified CSG (China Southern Glass) double-glazed Low-E units across the envelope, with the high-performance zones — the hotel's upper floors and the apartment's corner glazing — upgraded to double-silver and triple-silver Low-E coatings to push the centre-of-glass U-value down to 1.4 W/(m²·K).
The system itself was unitized curtain wall, factory-assembled into cassette units that could be installed floor-by-floor from the slab edge. The unit grid was set out against the slab tolerance survey we requested before fabrication, with the bracket design carrying generous three-axis adjustment to absorb the as-built structure variation. Every unit was numbered and traceable to material certificates.
Acoustic performance was a second driver — the building fronts a major CBD road. We combined the double-glazed Low-E build-up with a three-seal EPDM gasket system on the unit perimeter and a wider 12 A cavity on the road-facing elevations, achieving a weighted sound reduction index of Rw 35–40 dB for the apartments and Rw 40–45 dB for the hotel rooms, verified against the design calculation.
The tower topped out on programme with a continuous unitized envelope that reads as a single blue-tinted glazed face to the city. The technical evidence package was handed to the local consultant for the authority submission process.
Design & Supply
18 000 m² unitized curtain wall envelope — designed, fabricated and export-supplied from our plant
Whole-building U-values met: curtain wall ≤ 2.0, windows ≤ 1.8, hotel premium ≤ 1.6 W/(m²·K)
CSG double-silver and triple-silver Low-E units on the high-performance zones; Rw 35–45 dB acoustic performance verified by calculation
Technical evidence package handed to the local consultant for authority submission
“The energy targets were tight and the acoustic brief was unforgiving. Both were met. The tower reads as one calm blue face to the city.”
— Project Director, Foshan Tianyue
Supplied project photography is sequenced as an evidence trail rather than shown as an unstructured gallery.
01 · Facade installation
02 · Envelope closure
03 · Twin-tower elevation
This case uses supplied original project photography and the available delivery record. Final contractual documents govern the precise scope, responsibilities and warranties.
Delivered project
Sliding & Folding Glass Walls · 380 m² windows & doors
Delivered project
Sliding & Folding Glass Walls · 280 m² windows & doors
Delivered project
Stick Curtain Wall · 2 200 m² envelope
Share the project location, drawings or photographs and intended installation route. We will frame the first technical questions within 48 hours.
