L 24424 Official Journal of the European Union 7.9.2006 COMMISSION DECISION of 4 September 2006 establishing the classes of external fire performance for certain construction products as regards double skin metal faced sandwich panels for roofs (notified under document number C(2006) 3883) (Text with EEA relevance) (2006/600/EC) THE COMMISSION OF THE EUROPEAN COMMUNITIES, (5) By way of a harmonised solution, a system of classes was Having regard to the Treaty establishing the European Community, Having regard to Directive 89/106/EEC of 21 December 1988, on the approximation of laws, regulations and administrative provisions of the Member States relating to construction products (1), and in particular Article 20(2) thereof, Whereas: (1)  Directive 89/106/EEC envisages that in order to take account of different levels of protection for the construction works at national, regional or local levels, it may be necessary to establish in interpretative documents classes corresponding to the performance of products in respect of each essential requirement. Those documents have been published as the ‘Communication of the Commission with regard to the interpretative documents of Directive 89/106/EEC (%) (2)  With respect to the essential requirement of safety in the event of fire, interpretative document No 2 lists a number of interrelated measures which together define the fire safety strategy to be variously developed in the Member States. (3)  Interpretative document No 2 identifies one of those measures as the limitation of the generation and spread of fire and smoke within a given area by limiting the potential of construction products to contribute to the full development of a fire. (4 The level of that limitation may be expressed only in terms of the different levels of reaction-to-fire performance of the products in their end-use application. () OJ L 40, 11.2.1989, p. 12. Directive as last amended by Regulation (EC) No 1882/2003 of the European Parliament and the Council (O] L 284, 31.10.2003, p. 1). (?) O] C 62, 28.2.1994, p. 1. adopted in Commission Decision 2001/671/EC of 21 August 2001  implementing  Council  Directive 89/106/EEC as regards the classification of the external fire performance of roofs and roof coverings (%). (6) In the case of certain construction products, it is necessary to use the classification established in Decision 2001/671/EC. (7)  The external fire performance of some roofs and roof coverings, within the classification provided for in Decision 2001/671/EC, is well established and suffi- ciently well known to fire regulators in Member States, so that they do not require testing for this particular performance characteristic. (8)  The measures provided for in this Decision are in accordance with the opinion of the Standing Committee on Construction, HAS ADOPTED THIS DECISION: Article 1 The construction products which satisfy all the requirements of the external fire performance characteristics without need for further testing are set out in the Annex. Atrticle 2 The specific classes to be applied to different construction products, within the external fire performance classification adopted in Decision 2001/671[EC, are set out in the Annex to this Decision. () O] L 235, 4.9.2001, p. 20.