PIR panels have better fire resistance due to the additional isocyanurate rings, making them more suitable for areas where the risk of fire is higher. PUR panels, on the other hand, have greater flexibility, which can be an advantage in applications where the material needs to conform to irregular shapes.

PIR insulation is almost entirely found in the form of rigid boards. This means that their application is limited to flat surface use, such as floors, walls and roof rafters. PIR insulation is not suitable for awkward angles and shapes.

Depending on the internal working conditions and the temperature differential with the outside environment, cold rooms may require thermal insulation in the walls, ceilings, and sometimes the floor.

A Polyurethane Sandwich Panel, also known as PU Panel, is a composite material composed of three layers of polyurethane foam sandwiched between two metal side skins. This material is extremely durable, lightweight, and resistant to extreme weather conditions

Sandwich panel walls can absorb moisture over time, which can cause the core material to deteriorate and weaken the overall strength of the panel. This can lead to structural problems in the building and a reduced lifespan for the panels.