This document specifies requirements for factory made, self-supporting, double skin metal faced insulating sandwich panels where the insulating core materials are intended to be but not limited to cellular plastics and mineral wool as defined below. The sandwich panels are intended for discontinuous laying in the following applications: a) roofs and roof cladding; b) external walls and wall cladding. The insulating core materials covered by this document are rigid polyurethane foam (PUR), polyisocyanurate foam (PIR), expanded polystyrene foam (EPS), extruded polystyrene foam (XPS), phenolic foam (PF), and mineral wool. Sandwich panels with edge details that utilize different materials from the main insulating core are included in this document. Sandwich panels used in outdoor cold store applications are included in this document. This document does not cover the following: a) sandwich panels with a declared thermal conductivity for the insulating core material greater than 0,06 W/m²K at 10 °C; b) sandwich panels consisting of two or more clearly defined layers of different insulating core materials (multi-layered); c) sandwich panels with perforated facing(s); d) curved sandwich panels; The products covered by this Document shall be controlled by the manufacturer under system 1 of ISO 12576-1. Its purpose is to provide uniform methods that are used to determine whether a production or a consignment of a thermal insulating material should be accepted as conforming to the relevant specification requirements. System 1 of ISO 12576-1 defines the manufacturer's declaration of conformity, based on the manufacturer's factory production control, based on ISO9001:2000, without any participation of a third party.