Please help, I'm failing trying to create the correct exterior wall

[bdillard]

Hello,

 

I'm getting some great help here.   I'm at the point I'm learning for the sake of learning as I find this interesting.    I'm trying to create the correct external wall structure which (in my case) would be fiberboard siding over a rain-screen, over house wrap over Zip-R9 with 2x6 (T-Stud or LVL) at 24 OC with 2" of closed cell with 4" of rock wool and possibly some poly before the sheetrock.    I watched a video on it and don't seem to be getting it right.  I can't find rain screen (may go by another name e.g. lap bands or something else.) and haven't found the T-stud or LVL or styro or poly sheeting.

 

Don't beat yourself up trying to help if this is too hard to explain to a newbie, I'm just curious.

 

[GeneDavis]

Think of the rainscreen cavity as a framing layer.  You define the width of the "studs," their spacing, and material.

[bdillard]

Thanks!  I'm working on it - do I specify here that I want closed cell and rockwool on the interior?  I'm wondering how I specify I want it between the framing timber.

 

 

If I go to the main layer and add anything it increases the thickness of the wall but I want it between the framing.   I'm sure the answer is in front of me but I don't see it.

 

I'm not sure if I should do this but I think this is close.   I'm just manually typing these into the default.  I'm not sure how to put in the measurement for closed cell spray insulation.

 

 

Unfortunately even after I make those changes, when you click on an exterior wall of the same type it doesn't show those components.

[SNestor]

On 2/24/2021 at 2:10 AM, bdillard said:

Hello,

 

I'm getting some great help here.   I'm at the point I'm learning for the sake of learning as I find this interesting.    I'm trying to create the correct external wall structure which (in my case) would be fiberboard siding over a rain-screen, over house wrap over Zip-R9 with 2x6 (T-Stud or LVL) at 24 OC with 2" of closed cell with 4" of rock wool and possibly some poly before the sheetrock.    I watched a video on it and don't seem to be getting it right.  I can't find rain screen (may go by another name e.g. lap bands or something else.) and haven't found the T-stud or LVL or styro or poly sheeting.

 

Don't beat yourself up trying to help if this is too hard to explain to a newbie, I'm just curious.

 

 

I don't think you'll get exactly what you want from Chief...but you can get close: See attached pics...hope they give you some idea on how you could create a wall type that is close to what you want.

 

[kMoquin]

You may need to create custom materials if the ones you want aren't in the library. (ie the T-Stud or Rockwool)

Steve has you covered on the strapping. Sometimes I just use "Opening (No Material)" for a rainscreen

 

I simulate Zip-R with the OSB material and the Insulation Foam material.

[bdillard]

Thanks Everyone!