Forums >> Revit Building >> Technical Support >> roof vent for plumbing

Warchitect

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Joined: Wed, Aug 20, 2008
318 Posts

So I want to make a roof based family, a stack vent for plumbing fixtures. really I just need a pipe, always to stay vertical. even when the roof slope is not flat.

so I make a simple extrusion with the "roof based family generic", but the extrusion stays perpendicular to the roof so its at an angle on any roof thats sloped. what is the parameter I need to keep the pipe vertical, but end at the roof and get cut off nicely at the roof line. 

see lame sketch :-)

THanks in advance.

Michael

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blue442

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Joined: Tue, Aug 25, 2009
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This had me interested... so I created a roof based model.

I checked the box "always vertical" in the  family category and parameters.

I added a void to cut the roof and extended it a good ways both directions

I added a solid to represent the roof vent pipe.

I didn’t mess with the square at the bottom.  It was clumsy and fighting me (not working).

give it a go maybe you can figure it out.  Repost your results!

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blue442

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this seems somewhat relevant.

http://plevit1.blogspot.kr/2014/03/gravity-in-revit.html

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Warchitect

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Joined: Wed, Aug 20, 2008
318 Posts

Worked great! thanks for showing the vertical setting, would have never gotten to it on my own. 

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