Our panel is made of polyiso foam coated with centesimal aluminium on both sides, and it was developed by Stiferite specifically for the construction of pre-insulated ducts for air transport. Manufactured with the standard dimensions of 1200 x 4000 mm, it is available in a wide range according to the foam density, thickness and aluminium finishing which determine its final application. The main intended uses are in the context of civil, industrial and medical buildings.