Has anyone here worked with insulated wall or roofing systems for projects in hot climates? One material that often comes up in discussions is the Sandwich Panel in Saudi Arabia, mainly because of the extreme heat and energy demands. These panels are commonly used in warehouses, cold storage units, and industrial buildings as they offer good thermal insulation, faster installation, and reduced cooling costs. From a practical point of view, the core material (EPS, PU, PIR, or Rockwool) plays a big role in fire resistance and temperature control. In desert regions, proper insulation and airtight installation can significantly improve indoor comfort and lower electricity use. Many contractors also prefer sandwich panels because they reduce overall construction time and structural load. Some suppliers like Matco Industry are often referenced for providing different panel options across the region, though material selection should always depend on project needs.