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acme3d
2004-11-21, 08:44 PM
I am currently working on a project of designing a canopy over a pedestrian bridge. part of the roof will be sort of a tent like roof. the footprint of this roof is an irregular shape and is sloping to opposite corners. does anyone have some suggestions on how to create and irregular roof shape? would trying to create contours in autocad and then using the toposurface tool be the way to go?

i'm somewhat new to revit and this is my first real project with it. sadly the training classes did not come in time for this job so i'm learning a little as i go.

thanks

Andrew
Jacobs

PeterJ
2004-11-21, 09:40 PM
The two most likely solutions I think are the use of a ruled curtain wall surface, which can be similar in effect to a mesh surface in AutoCAD, or use the R7 massing tools to produce some form of curved surface and then applying a roof to that surface.

If you do the latter try a cube and then cut into the cube with a void sphere which will give a reasonable approximation to the concave roof form you might be aiming at.

beegee
2004-11-21, 09:51 PM
If you use the massing tools to create an irregular ( non planar ) roof you will only be able to convert that form to a curtain wall, not to a "standard roof" as such. You could then swap out the curtain panels for solid panels. You could have problem joining walls to this roof.


You’d need to experiment with different methods probably.


You could just model the roof as an in-place family.
Create a roof by footprint. Make it a simple flat roof to start with.
Create a series of in place voids to the form you require, one for the top surface and one for the underside.
Use cut geometry to cut the roof shape

tatlin
2004-11-24, 05:37 AM
If you use the massing tools to create an irregular ( non planar ) roof you will only be able to convert that form to a curtain wall, not to a "standard roof" as such. You could then swap out the curtain panels for solid panels. You could have problem joining walls to this roof.
beegee,

This is not quite correct. The new 'Roof by Face' tool will allow picking any surface type in revit, same as curtain system. The only limitation with roofs is that the surface needs to be pointing 'up' (so the roof can keep out the rain!)8)

Walls will attach up to these roofs, etc

beegee
2004-11-24, 05:55 AM
Yes, - I was thinking of problems I had with inclined mass faces wanting to convert to curtain walls instead of walls and confusing that with roofs.

Thats cool that roofs work that way, I'll have to make time to play with that.