Renovating old existing buildings presents many unique challenges that traditional heavy wall materials simply cannot address, which is why EPS Cement Sandwich Panel has become the go-to solution for professional renovation contractors. Most old buildings were designed with much lower original structural load capacities, so adding new traditional brick interior partitions would exceed the original structural design limits and create serious safety risks. The ultra-lightweight nature of these panels means they add almost no extra load to the old building structure, making them completely safe for use in any old building renovation project. Their thin thickness (starting from just 60mm) allows renovation teams to maximize usable floor space inside old buildings, which is extremely valuable for small old apartments and offices where every square meter counts. Installation work produces far less dust and construction waste compared to brick wall construction, making the renovation process much cleaner and less disruptive for building occupants who may still be living or working in parts of the building. The panels can be directly installed on existing old floors without any special foundation treatment, saving huge amounts of demolition work and associated costs. Renovation projects that would normally take months to complete with traditional methods can be finished in just a few weeks using these panels, drastically reducing the total renovation period. After installation, the panels provide much better thermal insulation than the original old walls, improving indoor comfort and reducing energy bills for the renovated building.