Double Wall Method

[ford347]

I have ran across this a number of times and I'm wondering how others are handling this. I have attached a picture showing two walls drawn above an opening. I used two walls because typically that is how we are going to do it in the field. But when looking up at those walls, that's all you see, the bottom of the two walls. What are others doing to 'face' the bottoms of these walls in this scenerio? I have thought about just creating an in-place family using the ceiling type, or wall type. That's what I've come up with. Any suggestions would be helpful. I also have this condition with stucco walls at the exterior multiple times throughout the project, so I'm looking for something efficient. Thanks.

Josh

[David Haynes]

As you say, the double wall is how it would be built. The 'bottom' of the those walls would then be built similar to a ceiling...so, there are three approaches.

1. In-place family for some ceilings, using "Ceiling as the Family Category and Parameters".
2. Ceiling if it flat.
3. You could use a roof with "Roof by Extrusion", but be careful if you are going to use material takeoff functionality.

Hope this helps.

[whittendesigns]

What i do is make one wall with 2 core materials and an air gap. So for instance, a 10" wall, 2-2x4's thick, I create one wall with gyp (just for example sake) on both sides, meaning exterior and interior part of wall, and 2 core walls 3½" thick and an air gap in between of 3".

[twiceroadsfool]

What i do is make one wall with 2 core materials and an air gap. So for instance, a 10" wall, 2-2x4's thick, I create one wall with gyp (just for example sake) on both sides, meaning exterior and interior part of wall, and 2 core walls 3½" thick and an air gap in between of 3".

I tried that in a job once too, for the sake of taking a chase wall with a proper wall tag. I realized i was in trouble the moment someone tried to override a graphic control to poche a wall, or set the view to coarse. Then the view looked like there was a 2'-6" solid chunk of wall between two toilets, haha.

I too, model them as two walls, and use a ceiling (or a roof by ext.) as required. Sometimes, ill make a quick in place mass and use a "wall by face" as well, to close it up...

[ford347]

Thanks guys. I've tried the double wall method and I like the ease of using a single wall to get it done, but as described in this post, I've ran into a few kinks, so I don't use it consistantly. I think I'll use the double wall and use a roof or ceiling extrusion to take care of the bottom. Thanks a lot for the replies!

Josh