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Einar Wahlstrøm
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PostPosted: Mon Oct 16, 2017 1:53 pm    Post subject: Non-horisontal roof ridge Reply with quote

Hi.

I'm struggling with how to make a roof ridge that is not horizontal. I'm just beginning this BIM model and will naturally be working on it for the next 2-3 years so the solution has to be practical in terms of future skylight, sections...

What is the best way to approach this?



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Erwin Edel
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PostPosted: Mon Oct 16, 2017 2:09 pm    Post subject: Re: Non-horisontal roof ridge Reply with quote

Unless the gutter is sloped as well or your building footprint is not a rectangle, you will have to bend or curve the roof planes to do that.

If you do want a sloped gutter or a trapezium footprint, the ridge will be sloped.

Build your model with cardboard and you will see how the roof planes work.

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Einar Wahlstrøm
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PostPosted: Mon Oct 16, 2017 2:18 pm    Post subject: Re: Non-horisontal roof ridge Reply with quote

There should be no need to curve that roof...


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Erwin Edel
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PostPosted: Mon Oct 16, 2017 2:28 pm    Post subject: Re: Non-horisontal roof ridge Reply with quote

If you want to re-invent the rules of geometry, I'm not stopping you Wink
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Einar Wahlstrøm
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PostPosted: Mon Oct 16, 2017 2:32 pm    Post subject: Re: Non-horisontal roof ridge Reply with quote

But I'm not inventing anything... The roof is flat.


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Erwin Edel
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PostPosted: Mon Oct 16, 2017 2:48 pm    Post subject: Re: Non-horisontal roof ridge Reply with quote

Your roof pivot lines need to form a trapezium shape, that is the only way you will make that shape, without splitting that triangle in to two triangles or twisting the roof in to a curved shape.
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runxel
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PostPosted: Mon Oct 16, 2017 4:58 pm    Post subject: Re: Non-horisontal roof ridge Reply with quote

I'd just like to drop the Mesh to Roof command.
Might be helpful here.

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Einar Wahlstrøm
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PostPosted: Mon Oct 16, 2017 5:54 pm    Post subject: Re: Non-horisontal roof ridge Reply with quote

Thank you, both of you.

I was hoping there would be a solution where I could use the multi-plane roof, and easily adjust the angles as the project develop. It seems I have to use single-plane roofs, which is OK, but a bit more work...



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Stephen Dolbee
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PostPosted: Mon Oct 16, 2017 5:56 pm    Post subject: Re: Non-horisontal roof ridge Reply with quote

If your roof planes are not parallel with each other, your ridge will not be horizontal. It will slope up or down.
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Einar Wahlstrøm
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PostPosted: Mon Oct 16, 2017 6:09 pm    Post subject: Re: Non-horisontal roof ridge Reply with quote

Yes, the multi-plane does that...

Unfortunately the moment the footprint becomes something else than a rectangle the top ridge point is un-movable? That is very inconveniant at such an early stage...but probably because of geometry constraints.



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Last edited by Einar Wahlstrøm on Mon Oct 16, 2017 6:19 pm; edited 1 time in total
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