+ 'Screed': { 'description': 'A screed is used in construction to create a level surface on a rough floor substrate. If a single element represents a composite floor structure that includes a screed layer, classify the whole element as IfcSlab with the PredefinedType: FLOOR. If the screed is a separate element from the floor structure, classify it as IfcCovering and use the PredefinedType: FLOORING when the screed is part of a composite floor covering that includes a finished surface or serves as a finished surface itself. If the screed is its own independent element, use the PredefinedType: TOPPING.', 'attributes': [] }
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