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Forums >> Revit Building >> Technical Support >> Triangular Roof with single slope?

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Thu, Dec 20, 2007 at 11:26:31 AM | Triangular Roof with single slope?

#1

EmeraldCityReviteer


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Hi,

 I'm having trouble defining a slope of a roof.  If I could define it from the ridge instead of the eave I think that would solve the problem but I haven't been able to figure that out.  My only solution at the moment is to create a small horizontal eave at the lower edge of the roof in order to define the slope.  I think I could clean it up more with this method but it's not ideal. Please see the attached image.  Any thoughts?



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Thu, Dec 20, 2007 at 12:43:53 PM | Triangular Roof with single slope?

#2

WWHub


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It appears that the one side is square with the ridge.  Do the roof as a rectangle with the two parallel (perpindicular to the ridge) edges defining the slope then use join geometry to cut the roof to the triangle shape.

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Thu, Dec 20, 2007 at 2:15:42 PM | Triangular Roof with single slope?

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EmeraldCityReviteer


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Thanks, that's looking correct from above.  How do I cut or trim the geometry that is below the other roof?

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Thu, Dec 20, 2007 at 3:05:56 PM | Triangular Roof with single slope?

#4

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Your gonna need some kind of nominal dimension at that one corner to define the slope.


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Thu, Dec 20, 2007 at 3:39:55 PM | Triangular Roof with single slope?

#5

WWHub


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OK.... instead of doing the rectangle, do 1/2 of your roof at a time in the triangle shape.  Instead of using the define slope, you need to know the exact offset of the ridge.  Click on that line ine your sketch, click on it's properties and set that elevation.  NO LINES SHOULD HAVE THE DEFINES SLOPE CHECKED!

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Thu, Dec 20, 2007 at 4:25:04 PM | Triangular Roof with single slope?

#6

puzzle


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you could make the roof by extrusion(draw the roof in elevation) then use the cut plan profile to trim off the excess

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Macca

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QLD Australia

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Thu, Dec 20, 2007 at 4:44:56 PM | Triangular Roof with single slope?

#7

EmeraldCityReviteer


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Okay, thank you for sticking with me.  This seems to be harder than it should be.  I tried following the triangle roof idea and setting the height for the line in the sketch.  "Plate Offset From Base"  seems to be the only setting I can edit and when I entered the height info nothing happened and I still had a flat roof.  The line properties dialog box is shown below. 

 5 min later...

I ended up using a small line at the lower outside edge.  A 6" return (less would work) is small enough that when joined with the main roof the cut eliminates that portion.  The roof appears correct in elevation and section so I'm going to go with it. The result is below.

 It seems a really simple solution would be to have the ability to choose which direction (up/down) that the line defining the slope would project.  I guess I should add that to the wishlist.



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