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# roof face with incline in both directions (X and Y)?

## Question

Hi

Does anybody know I can create a roof face with incline in both directions (X and Y)?

Thanks for help.

Mi&D

## Recommended Posts

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You should use a Slab instead

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if you rotate the line that defines the slope you can get the roof to slope in both directions

You need to calculate to get the right angle

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17 hours ago, Tom W. said:

You should use a Slab instead

Thanks for your suggestion. The problem is I have one face with 65°. Slab isn't possible with such incline...

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16 hours ago, Hans-Olav said:

if you rotate the line that defines the slope you can get the roof to slope in both directions

You need to calculate to get the right angle

Hi Hans-Olav.

It's not possible to rotate a roof face in 3d > see attachment.

It says "Hybrid objects can only be rotated around z-axis.

I've tried to rotate a simple rectangle in x and y, and then make a roof face out of it.

Even that is not possible...

It's quite disappointing, that such an advanced software can't solve such a common task...

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Its the line that you draw when defining the roof that you should rotate not the roof itself

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Roof face needs to look something like this in plan

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ok. I think I got it. Thanks.

this works.

unfortunately, a roof face like this doesn't properly work in offset with another roof face. 🤪

It's quite a lot of effort to build something as common as a trapezoidal dormer, don't you agree?

Edited by Mi&D
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Hi @Mi&D

Yo can use the connect / combine tool to combine several roof faces and their shape is automatically adjusted

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Please, could you try joining the 2 roof faces in the document attached.

I can't seem to get there...

They should make up a trapezoidal dormer in the end.

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I'm trying hard to get it right.

In the document attached I have 2 examples:

1) 2 roof faces which I got from a roof, that I've changed into faces.

2) 2 roof faces built from scratch.

It's strange to me: When I try to edit roof style, the ones built from scratch and  aren't possible to offset, do not show "edit roof style" when I right click on them.

While the other 2 do. (They have been extracted from a former roof.)

Can it be that there is a different behavior when roof faces are "exploded" roofs?

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1 hour ago, Mi&amp;D said:

Please, could you try joining the 2 roof faces in the document attached.

I can't seem to get there...

They should make up a trapezoidal dormer in the end.

I have not tried for very long, but I could not get them to join properly.

My experience with roof faces is that they have quite a lot of bugs and sometimes connections work properly, sometimes they don't.

I mostly only use them for quite simple roofs. For something like the dormer you are building, it's likely that I'd end up building it manually from solids.

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I couldn't  get it to work either. I guess the best option is to model it as solids like @line-weight suggest. If you need the solids to display proper in 2d view you could make them into AotuHybrid.

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As per the other thread I sent you a link to @Mi&D the issues regarding joining roof faces is a known bug:

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It's a right pain, because drawing a multilayer roof buildup in the kind of configuration the OP wants is really tedious to do manually, and the roof face tool, if it actually worked, would make it loads quicker, and loads easier to edit subsequently. But in industry-leading, BIM-ready Vectorworks, a functional roof face tool is just a bit too much to ask.

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That's what I've found out:

Intersection between roofs, when one of them has incline in 2 directions doesn't work. (example 1° and 5°).

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I think that what you mean is when the inclines are non-parallel in plan - an incline can always be expressed as a fall in one direction - but sometimes non-parallel inclines will connect fine and sometimes they won't, in my experience.

Edited by line-weight
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ok, thanks for the specification. I'll have a closer look at that point, too.

In the end, this has been the problem of the dormer.

The next question is, how to solve the joints between dormer and main roof...?

Let's see...

Edited by Mi&D

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