While precast concrete offers exceptional construction speed, factory-controlled quality, and structural durability, it presents several notable disadvantages. The primary drawbacks include high initial transportation and logistics costs due to the immense weight and oversized dimensions of precast panels, which require heavy-duty cranes and specialized trucking equipment for site installation. Additionally, precast elements offer zero flexibility for on-site design modifications once manufactured, demand precise engineering measurements during initial fabrication, and require careful joint sealing to prevent moisture infiltration over time.