topic Re: Vertical Opening "Can't cut host for inserted objects" in Revit Architecture Forum

Vertical Opening "Can't cut host for inserted objects"

Anonymous — Mon, 02 Apr 2018 14:22:38 GMT

I'm trying to use a vertical opening to cut off the corner of a square roof, but I'm getting this error. Any ideas what I can do differently?

Re: Vertical Opening "Can't cut host for inserted objects"

bimscape — Mon, 02 Apr 2018 14:47:20 GMT

Just so I understand, why are you using the Vertical Opening to cut off the corner? Can you just form the shape you want in the Footprint of the square Roof itself. I'm not saying your strategy is off- but I always try to understand the strategy first, then the tech solution second.

Re: Vertical Opening "Can't cut host for inserted objects"

Anonymous — Mon, 02 Apr 2018 14:54:32 GMT

Good question, the reason is that I'm using the "modify sub-elements" tool to make the roof in question part of a four-way low-slope roof. Making the footprint the way you're describing will create two sub-elements in the place of one, which in my experience has led to the roof becoming triangulated in an undesirable way.

Re: Vertical Opening "Can't cut host for inserted objects"

cbcarch — Mon, 02 Apr 2018 14:56:51 GMT

Try using an in-place void family to cut the roof.

Re: Vertical Opening "Can't cut host for inserted objects"

barthbradley — Tue, 03 Apr 2018 02:25:31 GMT

Shaft Opening would do the trick too.