Dual-Layer PVDF Thermal Envelope & R-16 Dead-Air Cavity HVAC Insulation. Non-spherical elongated cylindrical arch pneumatic enclosure engineered for San Francisco USA. Massive continuous barrel-vault pneumatic enclosures protecting submarine overhaul berths and drydocks from satellite surveillance and marine coastal salt spray corrosion. Manufactured by Spanbest Industry Co., Ltd.
Unlike conventional spherical domes, this facility utilizes a continuous barrel-vault cylindrical arch geometry, delivering full vertical sidewall eave clearances along the entire operational length.
| Structural Geometry | Continuous Cylindrical Barrel-Vault Arch (Non-Spherical) |
| Technical Discipline | Dual-Layer PVDF Thermal Envelope & R-16 Dead-Air Cavity HVAC Insulation |
| Applicable Standards | ASHRAE 90.1 / ISO 13789 |
| Operating Pressure | 200 Pa to 450 Pa (Dynamic VFD Automation) |
| Primary Manufacturer | SPANBEST INDUSTRY CO., LTD. |
| Corporate Group Base | Hunan Champion Metal Structure & Guangzhou Tentsen Tent Group |
