Sloped Roofs and Walls VW2010

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Permalink Reply by Bob Holtzmann on March 24, 2010 at 8:44pm

I'm taking it that you used the Fit Walls to Roof Command? Also, to create a gabled roof, I would select the walls and use the Create Roof command - that is, instead of a roof face, use the Vw Architect's Roof object - it always does a good job of detailing the top of the wall, and you can use dialog settings to detail the soffits and fascias. Just point and click on the roof edges. Unless, of course, you're using Vw Fundamentals.

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Permalink Reply by Lee Calisti on March 25, 2010 at 4:21am

Thanks. I have VW Architect. I am creating a "salt box" roof which does not fit into VW neat little package. Also, when there is a roof overhang, the overhanging portion is not always the same thickness as the interior roof structure. That can't be dealt with using the dialog settings. However, my biggest problem is where the roof meets the walls. The walls are trying to fit to the roof while staying joined at the corners. It creates some weird geometry and the "Fit Roof to Walls" does not always work or work consistently.

I am not sure what you mean by the Roof Object.

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Permalink Reply by Felipe Junqueira on March 25, 2010 at 6:41am

Hey Lee, i use to edit the wall peaks as you did, it solves the corner problems that you've posted here. But since wall peaks only change geometry by the center line you will have some problems sometimes even doing that. YES it's not easy I know. If you want a perfect result the only thing you can do is to keep your wall flat in the top, and above it place another wall and do some solid operations with that. Try this in a test file;

1-) Draw your desired walls;
2-) Copy them and place them above your walls;
3-) Make your roof;
4-) Make your copied wall top part be inside the roof thickness;
5-) Add your copied walls with add solids command;
6-) Copy your roof;
7-) Subtract your roof from the added walls;
8-) Plaste in place your copied roof;

Ok it's not easy I know, but VW let us mix automatic solutions with solid operations, and this kind of approach gives us the liberty that Nemetshek it's talking about. Of course you will have to use merge cross section in the section VP advanced properties menu.
Just another tip.

When I use merge cross sections and I want to have a detailed structure inside the section I don't draw it inside the annotations mode, I just model the structure and give it the classes I want, after that I copy the section VP then I uncheck the "display objects beyond VP" and adjust the visibility of the section to show only the structure. This tip gives us the ability to draw detailed sections just by placing sections VP's one in front the other... try it to...

I have attached the roof_test file with this procedure, since I'm I don't know if my level in english has let me explain the procedure correctly!

Attachments:

• ROOF_TEST.vwx, 490 KB

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Permalink Reply by David J. Barici on March 25, 2010 at 6:16am

Hi Lee,
Maybe this will help. The fit to roof command only works (in VW2010) when the wall is on another layer besides the roof layer, (side note, it used to work on VW'09). You have to be active on the wall layer also. Turn on the roof layer as grayed. Global rotate with unified view turned on and pick your walls to fit.
When you do get a wall to fit, it will fit to all roof elements such as soffits and roof walls that the "create roof" command makes (everything on the roof layer).
Once the wall is fitted, if it is an odd shape use the "3D shape" tool in "3D modeling" menu to edit the corners to where you want. You can add vertex points or delete points as needed.
One thing though, you need to make the roof thickness the height of your fascia/rake and modify the structural thickness in your section viewport afterwords for construction drawings. VW is not that sophisticated of a program to do everything in one step.
If you need to edit the roof plane you can un-group the roof, be aware that you can't go back. Each element of the "create roof" command will be a group or roof slab which you can modify individually.
Hope this helps.
Dave

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