wjmdes

Roof Plane Baseline at Second Floor

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I am trying to figure out how to automatically set the roof plane so it bears on a 2X on the floor joists when I draw it rather than keep changing the roof plane height until I get lucky.5a931f2a8f182_Untitled3.thumb.jpg.47dde3a212f0214da1a2664df02fdc40.jpg

The roof plane above actually should be moved up some more and I manually added the 2X, however I know in the past if I fiddle with it long enough, CA will place that 2x when I do wall framing.

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Yes, that puts the rafters on the double top plate of the second floor and correctly ignores the third floor.  

I tried setting the baseline height at top of subfloor, but I apparently made a wrong assumption as to what and where the base line is located.  To the manual I go.

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I added the plate manually, and just guessed at the raise dimension. Should be able to measure in elevation and be precise.

 

ct1.thumb.jpg.56b2d65d932cfcf1603131369fdeef2c.jpg

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1 minute ago, wjmdes said:

made a wrong assumption as to what and where the base line is located

 

The baseline is located obviously at the top surface of the rafter, in line with the exterior of the main layer -- where else would it be? ;)

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36 minutes ago, solver said:

The baseline is located obviously at the top surface of the rafter, in line with the exterior of the main layer -- where else would it be? ;)

Well, I assumed it was at the bearing point.....I just read the manual and am corrected.

 

Anyway, I draw most of my roofs manually out of habit.  What I did was measure the distance from where it was to where I wanted it and manually raised it, wallah!

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On 2/25/2018 at 1:25 PM, wjmdes said:

Yes, that puts the rafters on the double top plate of the second floor and correctly ignores the third floor.  

I tried setting the baseline height at top of subfloor, but I apparently made a wrong assumption as to what and where the base line is located.  To the manual I go.

 

Sorry should of mentioned to put the Floor Depth (joist + ply) plus the 2x Plate height ( 1 1/2") into the Raise Setting in the Roof Build DBX,  in your Case , still need to add the 2x Plate Manually I think ? as Chief has a Default of 3" above Floor before it builds plates automatically.

 

M.

 

 

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38 minutes ago, wjmdes said:

Anyway, I draw most of my roofs manually out of habit.  What I did was measure the distance from where it was to where I wanted it and manually raised it, wallah!

 

The Raise/Lower setting works for manual roofs, just like the pitch does.

 

Roof plane on left raised 8", on right, 48" after changing the raise/lower value to 48". 

 

 

ct1.jpg

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You can make the ceiling height of the second floor to 1 1/2" do your roofs once the roof is on change your ceiling height back to what you want it to be and you should see the plate once framed

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2 hours ago, chief58 said:

You can make the ceiling height of the second floor to 1 1/2" do your roofs once the roof is on change your ceiling height back to what you want it to be and you should see the plate once framed

 

Yep.

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