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Revit: Phased Rooflights in roofs not displaying consistently

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Posted 26.04.2019 by Timothy Crone

We've come across a common issue with rooflights that are hosted in an existing roof to be demolished and displaying in an odd fashion on the proposed when the phase filter is set to Show Complete. The infill panel only shows the inner most layer of roof construction in the completed phase, so graphically there is a patch of different material showing on the roof.

The workaround we have used is by copying the entire roof with all the porposed and existing rooflights and duplicating it in both phases, this from a scheduling point of view is wrong as it suggests we're demolishing and replacing the entire roof. The reality is we want to infill the where existing rooflights have been removed. So graphically it works, but from a quantity point of view its wrong, It also means that in demolition drawings we need to override the roof to not display as demolished, so we just need to remember to correct this.

Anyone come across any other work arounds to achieve an accurate quantity and graphical outcome?