Sandwich panel
Short definitionA prefabricated insulated panel with polyurethane insulation between two metal skins. It forms the walls and ceiling of a cold room.
Panels are made in the factory and locked together on site. The facing is chosen to suit the use: painted steel is the most common. Rooms with food contact and frequent wash-down use stainless steel or PVC-coated facings.
The number of panels for a project is found by dividing the wall lengths by the panel width. Corners, door openings and offcuts set the waste. That is why panels are calculated from the wall layout, not from square metres.