本文件确定了用于建筑物施工的强化或预应力正常重量混凝土制成的特殊预制屋顶元件的要求，基本性能标准和评估，具有或不具有耐火分离功能。 注意特殊屋顶元件的标题是指具有可变形横向轮廓的薄壁结构元件，例如折叠板或外壳元件，预期用途特定于具有典型载荷的屋顶。这种类型的元素将主跨度的整体弯曲行为与面内力和局部力矩的复杂分布相结合。 其他类型的元件可用于屋顶，如肋状单元，地板，.。对于这些要素，应参照其各自的产品标准。 ！本文件还标识了要求，基本性能标准以及由加固或预应力正常重量混凝土制成的补充元素的一致性评估，可能与主要屋顶元件（如承重挡板和外壳）结合使用，其中应参考附件F.“二次结构部件，可能与主要屋顶元件结合使用

This document identifies the requirements, the basic performance criteria and the evaluation of conformity for special precast roof elements made of reinforced or prestressed normal weight concrete, used for the construction of buildings, with or without separating function with respect to fire resistance. NOTE The title of special roof elements refers to thin-walled structural elements with deformable transverse profile, such as folded plates, or shell elements, the intended use being specific for roofings with their typical loads. This type of elements combines the overall flexural behaviour along the main span with a complex distribution of in-plane forces and local moments. Other types of elements can be used in roofing, such as ribbed units, floor slabs,. For these elements reference shall be made to their respective product standards. !This document identifies also the requirements, the basic performance criteria and the evaluation of conformity of complementary elements made of reinforced or prestressed normal weight concrete, possibly used in combination with the main roof elements, such as load bearing shuttering plates and shells, for which reference shall be made to Annex F."Secondary structural components, possibly used in combination with the main roof elements, such as load bearing shuttering plates and shells, roof light frames,., shall refer to their respective product standard or technical approval. This document covers terminology, performance criteria, tolerances, relevant physical properties, test methods, and aspects of transport and erection. This document does not deal with seismic behaviour. This document does not cover load bearing capacity determined by testing.