Forums >> Revit Building >> Technical Support >> Roof problems joining existing to proposed

Incaino

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Joined: Sun, Jun 5, 2011
13 Posts
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http://screencast.com/t/9ugvacHjlx

Im having trouble joining an existing gable roof to a proposed gable roof as per picture.  The problem is happening as the proposed roof is higher than the existing roof.  What I need is the existing roof to be extended to the new roof.

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itsmyalterego

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Joined: Thu, May 28, 2009
829 Posts

Hey -- the tool for you (I was able to do this with slopes, but it's a pain in the curse) is a roof that's defined by Points, and Ridgelines. 

Start by sketching the footprint.  Finish the roof with no slope on any of the boundary lines.  When you select the flat roof, you'll see that you can "modify sub elements"

You can now select the points on all the corners of the roof.  You can also add more points, and then drag and snap these points to the proper elevations, or copy/paste the correct elevations into them.  A much more free-form way of modeling a roof.  But less accurate for slope unless you do your math. 

pic related.

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revituser24

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Joined: Thu, Jan 10, 2013
51 Posts

I had that situation of one roof is higher than the other. I just joined the roofs with the join roof command. In my case I had to sketch a hip roof 1st by footprint and the sketch a gable roof by extrusion. Then use the join roof command.  The 2 roofs are joined but can someone let me know why the side face of the roof is not covered after using the join roof command? In other words there is a triangle opening on the side of the roof.

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Existing and Proposed Problems

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Existing / Proposed

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existing, demo and new roof

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Existing and proposed design

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Existing and proposed ground level

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