tim722

How would you do this roof in CA

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Please refer to attached images.

I'm pondering how to do something along these lines in CA using X8.

 

Assuming the following. Beam pockets in walls for the larger beams. layers for roof

over interior structure include usual OSB with paper and corr. metal, and ceiling to int. roof with gyp board.

I've tried different techniques and can't quite get there.

 

Do you do deck/porch room and create a custom roof structure? Manually place beams and create

an "elevated deck" for the porch covering? I'm sure there are some advanced techniques I'm not

aware of to accomplish this.

 

Can someone take a look and suggest a workable solution?

 

Thanks!

exposed_rafters.JPG

rafters1.JPG

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Manually create a roof plane with structure defined by thickness of sheathing.  Place posts, beams and rafters as required.  You would not be doing an automatic roof here.  Your room definition should have roof and ceiling shut off.  There are other ways of doing this, but this method will give you the greatest degree of control.

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A forum search for purlin will return lots of good info.

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I would try this using the deck tool, No railing, on the 2nd floor weather you have one or not, that's how I do lattice patio covers, at least you can adjust the deck layers and spacing to what you want. Easy to change joists direction also.. There might be some fix up but a lot faster than using p-solids.

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Thanks everyone for the info. The ideas about using the generated lookouts as purlins is what got

me going in the right direction. At this point I'm drawing my roof plane, adding a 1 1/2" air space

above my rafter to make room for the purlins. Roof surface is corr. steel panels.

 

Once the roof shapes and overhangs look good, I turn off auto roof, select all lookouts

on one edge and delete. Select lookouts on other edge, raise height by 1 1/2", and extend

all the way across the roof plane. The only issue I see is not being able to grab all "purlins"

at once and extend them. Each one has to be done in turn.

 

See attached.

purlins.JPG

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2 minutes ago, tim722 said:

The only issue I see is not being able to grab all "purlins"

at once and extend them. Each one has to be done in turn

 

You should be able to marquee select the purlins in a rafter cavity and extend them to the edge of the selected roof plane all at once without too much of a problem.

 

Sorry to have not seen your post earlier but it looks like you have it working for you.  I am hoping to finish and release a toolset for this purpose that will provide a little more automation to the process sometime soon but I have been really busy. 

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I did figure out another way. (maybe quicker).

Auto generate roof, then turn off auto roof.

Delete all except one lookout in plan view.

Move to desired location in plan view. (lookouts don't go to edge of rafter at eaves.

 

Extend, multi-copy up the roof plane, raise height, done!

Thanks again. Chopsaw, looking forward to see what you have going on with the toolset.

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Yes that would work fine on a gable roof. Good thinking.  Are you new to the software or just the forum ?  Send me a PM if you have another similar project.

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Newer to the forum, but still new to the software also. I had bought it to work on the house I'm going to build.

I'm on about my 5th floor plan, and it looks like it may still be a while before the house gets built.

 

Just practicing/learning in the meantime.

 

 

 

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