Soffits & Trim

[studio3p]

I am trying to use the Host Sweep>>Wall Sweep to add trim to the very bottom edge of a soffit, as you can see in the attached photographs. I have created a wall with it's bottom constraint at a level which I've named "Soffit". I then created a ceiling at the same level. If I join the ceiling and the wall (in order to get rid fo the line just above the trim) I am unable to add the trim profile where I want it. If I place the trim and then join the geometries the trim disappears. Any suggestions for remedying this issue?

My thanks -

[beegee]

I don't think its "best practice" to join wall and ceiling geometry.

Try moviing the ceiling back away from the wall face. ( Revit prefers to work the way you would build it ) That will get rid of the line. Alternatively, use the linework tool to make that line invisable.

[studio3p]

I pulled the edge of the ceiling back 1/2" (drywall) which removes the line from the face of the soffit, but then creates a setback line on the ceiling plan. With the 1/2" offset I was then able to join the geometries for the soffit ceiling in the model (and retain the trim), and use the line tool on the ceiling plan to remove all of the offending lines.

In terms of "best practice" and construction reality, it seems that the correct approach is to hold the ceiling gypsum board back from the finished face of the soffit wall, and then joining the geometries. This is what taping and mudding accomplish. So I guess the only thing misaligned is the need to use the <invisible> line tool on the ceiling plan. Maybe they'll add an "add more mud" button to 6.0.

Thanks for the suggestion beegee.

[tatlin]

studio3p,

We think the 'best practice' is to model it almost exactly like you built it. All hosts in Revit (walls, floors, ceilings and roofs) know how to join to each other and clean up their compound layers. So in this case here is

1) Use a compound wall type for your soffit wall (there is one in the default template that has gyp on one side and mtl. studs in the core).
2) Use a compound ceiling type (a.c.t. or gyp) for your ceiling.
3) Create your ceiling sketch using the Pick Wall button.
4) Make sure the lines created have 'Extend into wall (to core)' checkbox set
5) Join Geometry as appropriate.
6) Your elevations, details and 3d views will look right and your wall sweep trim will still work.

Of course, there is still the problem of extra lines showing up in your RCP view :( . This looks like a bug on our end (I just talked to the developer). A potential workaround would be to model a seperate thinner ceiling to only represent the gyp. that 'caps' the bottom of the wall.

matt jezyk
autodesk revit

[tatlin]

Also If you Paint the little strip of wall with your gypsum material (or whatever you ceiling is), the lines should disappear, like this:

matt jezyk
autodesk revit

[studio3p]

Matt -

Thanks for the rundown. I didn't realize there was a soffit walltype in the template.

[bpayne]

Make sure your materials are set to the same material and it cleans up in elevation and floor plan, though not how you would expect in section.

[patricks]

A bit late on that eh? For gyp soffits and furring, I always try to draw the wall first, then pick the wall's core layer for the ceiling sketch, and then join the two. Yes there's an extra line in the ceiling plan, but at 1/8" scale you really can't tell at all, and it makes the section look correct (gyp wrapping continuous around the horizontal and vertical framing).

If you take the soffit out to the finished face of the walls, then in section your structure layer of the ceiling appears to extend to the edge of the walls, and the gyp does not look continuous.

[greg.mcdowell]

You can also modify the wall so that the gyp board wraps under the stud work (split region and assign material). This removes the line from the RCP's but leaves a blank surface pattern where the soffit is.

Pick your poison.

[JohnCAVogt]

But what if you can't use the same material in the outer layer of gyp bd in the two assemblies because the elevations have to show the walls with no pattern but the ceilings have to show a sand pattern?