Hainan G654 for Curtain Wall Cladding in Poland

**Project Case: Hainan G654 for Curtain Wall Cladding in Poland**

**Project Location:** Warsaw, Poland
**Application:** Exterior dry-joint curtain wall cladding
**Material:** Hainan G654 (Dark grey-black basalt/granite)

**Challenge:**
A commercial building in Warsaw required durable, frost-resistant natural stone for its facade. The material had to withstand Poland’s extreme freeze-thaw cycles, strong winds, and urban pollution, while maintaining consistent color and structural integrity.

**Solution by a Professional Stone Supplier:**
Our company, as an experienced engineering stone supplier, provided:
- Precise CNC cutting and back-slot anchoring points for dry-joint installation
- Strict water absorption control (≤0.2%) to prevent freeze-thaw damage
- Pre-shipment quality inspection and project-tailored packaging

**Result:**
Over 3,500 m² of G654 panels were successfully installed on the building envelope. After two harsh winters, no cracking, efflorescence, or anchor failure was reported. The local contractor praised our professional technical support and consistent material quality.

This case proves that a reliable stone supplier delivers not just slabs, but engineered solutions for demanding facades.