Sandwich PUF Panel is normally a structure made up of three layers- two side skin with Pre-Painted Galvanized Iron 𝗦𝗵𝗲𝗲𝘁(PPGI Sheet) and core with 𝗣𝗼𝗹𝘆𝘂𝗿𝗲𝘁𝗵𝗮𝗻𝗲 𝗙𝗼𝗮𝗺. Sandwich PUF panels are widely used in the construction of prefabricated buildings.