roofs

[money2312]

I'm using Revit Lt. I was wondering is there a way to connect a roof to walls at different heights without extending the walls  up to the roof. Example one wall height is 10' another 12' and another 14'. The issue I'm having is once I place the roof on a level it stays there. when I change the base of the roof it moves the entire roof up or down. With the example heights I gave. , I would like the main house wall level be 10' the front entry wall level be 14' and the covered back patio be 12'. With this being one solid roof. Can this be done in Revit Lt ? Can someone point me in the right direction?

[constantin.stroescu · Accepted solution]

If I understand you well, you want to attach the wall to the roof with an offset...

If so, you can use a gizmo roof placed under the real roof aligned and locked to it.This gizmo roof can then be hide or placed  into a not shown Workset ( in LT I think Worksets are not available.

[constantin.stroescu · Accepted solution]

here you have a draft screencast on the subject:

[loboarch]

I don't know what your footprint/condition is like exactly, but you can individually adjust the offset of a roof sketch line. This will place the eave line higher along that edge.

That being said, this can cause issues with the roof geometry when created, so it depends on the exact condition you have that will indicate the method you use. In this example one roof was created and I attempted to create the porch at 3' high eave than the main roof, but it did not work using one roof element because of the way the geometry is generated.

If instead I draw this condition as 2 roof elements, the main roof and the porch roof offset by 3' and then use the join roof tool, I can get the roof to look the way i expect it to.

I have a feeling from what you are describing, you are going to want to create separate roof elements for the different eave heights and then use the join roof tool to connect them. 

[constantin.stroescu · Accepted solution]

hi Jeff ,

maybe you understood better then me the question ....Anyway , there is ,still, a trick to make the roof at different heights from one entity....as you can see below:

[loboarch]

Nice geometry trick, but I would still probably go with 2 roof elements and the join roof tool.

[constantin.stroescu]

Ye, I prefer too the two roofs method....although using one roof , I think,  the Dormer Opening function would not be necessary any more ....

[ToanDN]

Take a look at this other thread.

@PijPiwo has done a great job creating a quite complex roof from as a single roof object.

[barthbradley]

This is the method we use. The second roof is nothing more than a reference element, just like Ref. Planes or Masses that host host or define other geometry in the project. And it's identifiable as a reference so that it's readily detectable and filterable in the view. 

[money2312]

I did this roof with ACA 2013. This is the type of behavior I'm trying to achieve with Revit Lt . See how the front of the building has taller walls and the peak of the roof is higher than the peak of roof on the rest of the building.  Revit Lt gives me a warning when I try to join the roofs together. Is this possible with Revit Lt ? If so can someone help me out?

 

[money2312]

I did this roof with ACA 2013. This is the type of behavior I'm trying to achieve with Revit Lt . See how the front of the building has taller walls and the peak of the roof is higher than the peak of the roof on the rest of the building.  Revit Lt gives me a warning when I try to join the roofs together. Is this possible with Revit Lt ? If so can someone help me out?                                                                                                                     

[constantin.stroescu]

I don't have LT but in full options works well...

[money2312]

[money2312]

This is what my drawing look like. I need the roof to sit on top of their host walls and still be connected to roof.

[money2312]

when I use the join roof tool I get this. when I use join geometry tool I get an error message. The second picture is what I'm trying to achieve

[constantin.stroescu]

I've used a single Roof....You 've used 2 Joined Roofs ...that is the difference .....

[money2312]

I generated the last view with ACA 2013. I cant seem to achieve the same results with Revit Lt . Are there instruction to get these results in Revit Lt ?

[money2312]

Is it possible to generate the your same roof image with the walls being higher on the front part of the building to that of the rest of the building ?

[ToanDN]

@money2312

I suggest you watch @constantin.stroescu screencast video again and pay closed attention to every step.  All the answers to your questions are in that video.  If you are not clear at a particular step then come back and ask about it specifically.  Repeating the same broad question over and over gives the impression that you did not read the replies or watch the demonstration video.