The Isomasters insulated panels, also known as sandwich panels are designed for use within temperature controlled and hygiene safe environments such as food processing, deep freeze, cold / chill store and clean rooms for bio-technology and pharmaceutical industries. The QuadCore IND panels can be installed in controlled environments for internal and external walls, ceiling and roof applications (with an extra waterproof roof membrane), and can be laid vertically or horizontally. These panels are quick and easy to assemble.