Forums >> Revit Building >> Technical Support >> Base Extension Distance + Wall Sweep (at base)

justjames

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Joined: Mon, Dec 10, 2012
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Aloha All,

Using Revit '14.

I am attempting to create a wall type as seen in the attached pdf. Currently, I have enabled Base Extension Distance on the outer most exterior wall layer (EIFS). The problem I am having is when I apply the sweep, whether in the family type itself, or after I place said wall, Revit prompts me with the "Could not create integral wall sweep for wall instance. Sweep position is outside of its wall. Please check sweep parameters" error. 

I understand the error, but I'm seeking an alternative way of achieving the wall type without having to create a EIFS sweep. 

Much mahalos, 

Justin

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teafoe5

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Joined: Fri, Nov 12, 2010
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How tall is that EIFS band?  I would do this as a stacked wall or if it is just a small band at the top of the wall I would use the Wall Sweep tool under the Architecture Tab>Build Panel>Wall pulldown>Wall:Sweep

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WWHub

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Joined: Tue, May 16, 2006
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justjames,

I think I understand your problem but I have not tested.  Please explain furthur.   Is your wall layer pulled down or up from the base of the wall? 

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justjames

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teafoe5,

The EIFS band extends from 3' from the base all the way up to the second story. I would not advise using a wall sweep for a layer of a wall that jogs up and down around ornamention on the building facade.

WWHub,

I created the EIFS layer by unlocking the base constraints in the wall type's structure dialog box (section view). As I am sure you know, I then typed in 3' in the instance parameter for Base Extension Distance. That is all good and well, however when I do apply a wall sweep that is the GFRC Wainscot, it gives me the error. Likewise, if I add the sweep to the Wall type's structure, and then type in 3' in the walls instance parameter Base Extension Distance. I hope this added some clarity WWHub!

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WWHub

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Joined: Tue, May 16, 2006
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The GFRC you add as a sweep needs a host.   You want the host to be a sub-layer of the wall.... sorry - you can't do that.

Use teafoe's suggestion of a stacked wall with the bottom having the GFRC and it ends at 3' where the EIFS faced wall starts.

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pijpiwo

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Joined: Fri, Sep 3, 2010
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Just a thought, ...instead of base extension offset, you can try applying a sweep (GFRC), and a reveal to cut EIFS. However, the wall layer behind the reveal will adopt the surface pattern of the layer being cut/removed by this reveal.

Attached Images

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