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Forums >> Revit Building >> Technical Support >> roof
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Joined: Sat, Jul 30, 2005
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i understand this type of a roof can be done using blend....can you please guide me through more in detail? do we do it as two roofs or can it be done as one?
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Joined: Mon, Oct 23, 2006
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somebody please respond to this one. i just started a new thread and i want to do the same thing. can it be done in revit? if so, what is the best approach?
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Joined: Thu, Mar 17, 2005
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Do you need to see all the framing members or just a smooth blended roof?
If you are ok with a smooth blended roof I can make a video on how to do it and upload it for you pretty quick.
DG
www.dgcad.com
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Joined: Tue, Jun 29, 2004
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well, I just made a test roof to make sure it worked first.
Go to massing>create mass>solid form>solid blend. You need to be in a view like you're going to make an extrusion (like left elevation). You will automatically be in the edit bottom view first. You need to select a wall face for your beginning plane (in my example the left wall). You have to make an enclosed loop for your bottom end, so make it the thickness you want. When you are done, you click the edit top button (this will be the right elevation end) set the depth of your blend you want and do the same enclosed loop method, but the other way you want it to end up on the right side. When your finished you should have a twisted mass. You can place a roof, yada yada yada..
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Joined: Mon, Oct 23, 2006
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i had a similar message posted and i'd like to jump in on this one. i want to do someithing similar but it will essentially be a pavilion roof. there are no walls, just posts that hold up beams that slope in opposite directions in the long direction and then purlins that act as secondary structure and create a ruled surface and then a layer of corrugated metal to top it all off and keep the rain from falling through.
this is something that is very easy to do in Rhino or FormZ. in fact i could bring in all of the 2D construction geometry, aligned w/ my revit model, that i would need to sweep beam/rafter profiles on if it would make it easier.
if it is really as difficult as the first explanation, then REVIT really needs to work on their freeform modeling tools in order to get people who want to do things that are a little more creative to switch to this program. i hate to have my hand forced into simplifying my design by a program, its bad enough to deal w/ clients and contractors who cant understand anything out of the norm.
on a side note is it possible to bring in geometry from another program (solids or faces) and convert them to intelligent objects. if i make a 2x10 x20' long element as a solid in AutoCAD shouldn't it be really easy to just tell revit that this object happens to be a structural piece of framing lumber?
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Joined: Mon, Jan 12, 2004
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There are multiple ways to do this...
1. In 9.1 you can create it using a structural beam system.
or
2. a sloped glazing system with an empty system panel.
-----------------------------------
Regards,
Chris.
Co-Founder | BIM Consultant | Software Designer  B. Arch)
Xrev Revit API Addins | Revit Rants |
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Joined: Sat, Jul 30, 2005
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please remember for all who are considering this that all the for points are on four different levels....thats the big challenge here...thinking about it, i think we can achieve it by doing a void blend(mayb two) for a extruded mass cube...and then say create roof by face...
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hey, i was working on this and realised there is no need for a void blend cut off...we can achieve the same with blend itself....and assign different elevation to all points.
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