composed of insulating material and non-metallic or unspecified sheet-material (E04C2/288 takes precedence)

Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels > characterised by specified materials > composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups > at least one of the materials being insulating > composed of insulating material and non-metallic or unspecified sheet-material

Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels (materials or manufacture, see the relevant subclasses, e.g. B27N, D21J; made in situ E04B; specially designed for insulation or other protection E04B1/62; load-carrying floor structures E04B5/02, E04B5/16; roofs consisting of self-supporting slabs E04B7/20; roof or like covering elements E04D3/00; for lining or finishing E04F13/00) > characterised by specified materials (translucent E04C2/54) > composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups > at least one of the materials being insulating > composed of insulating material and non-metallic or unspecified sheet-material (E04C2/288 takes precedence)