In fact, this capability exists in the Revit API, but it may not be obvious: it is the temporary use of the Delete method. What is needed to extract gross material quantities is a way to remove elements that cut other elements. These methods allow you to extract the material quantities for an as-modelled Revit project.īut what if you need to extract gross material quantities of layered elements like walls, floors, and roofs, where the quantities are extracted before they are cut or modified by other elements?
These discrepancies tend to occur when you use the wall sweep tool to add a sweep or a reveal to a wall, or under certain join conditions. Note that the volumes and areas computed by Revit may be approximate in some cases.įor example, for individual layers within a wall, minor discrepancies might appear between the volumes visible in the model and those shown in the material takeoff schedule. Note that within these categories there are further restrictions about how material quantities can be extracted.įor example, curtain walls and curtain roofs will not report any material quantities themselves the materials used by these constructs can be extracted from the individual panel elements that make up the curtain system.Īs a side note from Jeremy, I just wonder whether these methods for querying the material volumes might possibly also be useful for the In practice, this is limited to elements that use compound structure, like walls, roofs, floors, ceilings, a few other basic 3D elements like stairs, plus 3D families where materials can be assigned to geometry of the family, like windows, doors, columns, MEP equipment and fixtures, and generic model families. The methods apply to categories of elements where Category.HasMaterialQuantities property is true.
Element.GetMaterialArea – obtains the area of a particular material in an element.
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