Eficol insulation panels from Bouwimpex are made of 2 types of material. The range for applications in agricultural buildings is called Efi-Agri and is composed of rigid polyurethane. For insulation with a higher fire-proof rating to use in special installations there is Efi-Foam Alu, manufactured from polyisocyanurate (PIR). Panels are supplied in thicknesses from 30mm to 60mm and in a width of 1200mm, with lengths from 2500mm to 7000mm.