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Roof is drawn higher than level placed at

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Nachricht 1 von 11
Anonymous
4665 Aufrufe, 10 Antworten

Roof is drawn higher than level placed at

When drawing a typical roof on second floor level it comes in higher than the second floor.  It's like it needs a base offset entered in.  Does a roof always require a negative offset to be placed on the level selected, don't believe so???

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Nachricht 2 von 11
bimscape
als Antwort auf: Anonymous

No, no negative offset required. It should come in at the Level referenced.

Is it a Roof by Footprint or Extrusion?

 

Can you take a screenshot of the roof (including the referenced Level) in Section- and maybe one of it's Instance Properties?

Kind regards,
Ian


Author of The Complete Beginners' Guide to Autodesk Revit Architecture (free online course)
Nachricht 3 von 11
barthbradley
als Antwort auf: Anonymous

How much are we talking about? A little? Like the difference between a Truss and a Rafter? If you picked walls when you sketched your roof, you have both Truss or Rafter available to you (see Roof's Instance Properties).

Nachricht 4 von 11
Sahay_R
als Antwort auf: Anonymous

Things to keep in mind when placing a roof - 

 

1) The level it is placed at - Roof level

2) If it is placed with respect to a floor level - Second Floor - then the offset from finished floor that it is placed at - and this would be a positive value

3) If it is placed with respect to a higher level (for instance, placed lower than the Second Floor) then there would be a negative offset

4) That there is an elevation entered (or not) in the Edit Sub Elements environment while modifying the roof

5) If modeled by extrusion, then the location of the profile, and the roof type

6) Check the level that the top of the walls have been constrained to - they may not be constrained


Rina Sahay
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Revit Architecture Certified Professional

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Nachricht 5 von 11
Anonymous
als Antwort auf: Sahay_R

Screenshot (1).png

 

Just getting back to this project.  Any idea as to why this roof is beind drawn above the Second Fl.

Nachricht 6 von 11
barthbradley
als Antwort auf: Anonymous

Yes. Pretty much what I said before. Here's what I think you did: you sketched the roof by footprint, but instead of picking walls, you picked lines for the boundary and then, instead of an "Overhang" you entered an "Offset" instead -- because "Overhang" is not available when you used this method. 

Nachricht 7 von 11
ToanDN
als Antwort auf: barthbradley


@barthbradley wrote:

Yes. Pretty much what I said before. Here's what I think you did: you sketched the roof by footprint, but instead of picking walls, you picked lines for the boundary and then, instead of an "Overhang" you entered an "Offset" instead -- because "Overhang" is not available when you used this method. 


Nailed it.

Nachricht 8 von 11
Corsten.Au
als Antwort auf: Anonymous

Revit Basics

 

 

Roof : gets placed above level....( lower side of roof is flushed with Level )

Ceiling : gets placed above level....( lower side of ceiling is flushed with Level )

Wall / Door / Window / Components : gets placed above level....( lower side is flushed with Level )

 

Floor : Gets placed below level ( upper side of floor is flushed with Level )

 

ALIGNMENT.JPG

 

Corsten
Building Designer
Nachricht 9 von 11
rdkushner
als Antwort auf: ToanDN

I know this is an old post, but I'm having the same problem with Revit 2023 and it doesn't seem to have anything to do with a base offset from the level. The roof is 5" above what should be the roof height. I don't see any parameters that can be changed. It's almost as if I need to manually set the roof at -5" from level.

Nachricht 10 von 11
barthbradley
als Antwort auf: rdkushner

Because you used Picked Wall tool when you sketched it.  Toggle the Rafter or Truss Property Parameter of the Roof to see the difference.  

 

Roof Instance Properties | Revit LT 2019 | Autodesk Knowledge Network

Nachricht 11 von 11
rdkushner
als Antwort auf: barthbradley

Thanks! I also mixed up "offset" and "overhang" - I'm still trying to unlearn AutoCAD :leicht_lächelndes_Gesicht:

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