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barrel roof into sloped roof

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I'm trying to put a barrel roof entry into a sloped roof. See pic. I want the barrel to start from the garage fascia and go to the front door. I have it partially done, but was wondering how to close the 2/12 roof down onto or "join" the 2/12 pitch roof to the barrel roof. If I start to break lines and modify roof planes my self manually, sometimes I get a fascia board on the inside of the barrel ceiling. I tried the "join roof plans" tool and I get some funky roof concoction. I attached plan also.


Screen Shot 2018-01-21 at 1.00.37 PM.png

Screen Shot 2018-01-21 at 1.00.46 PM.png

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I do curved roofs as a single plane, not 2. Set the pitch to 0 and adjust the angle/radius.


Shape the porch roof like this, then select the far end of the curved roof and join it with the roof just above. It won't be perfect -- you will need to fiddle with things to get a clean fascia.



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I don't know of any other way of making a barrel roof except for joining 2 roof plans and setting ridge to 0 degrees. If I try to do a flat roof to a barrel it gives me a single sided 1/2 barrel. 

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Delete one of the barrel roof planes. Drag the edge of the remaining one across to make 1 wider roof plane.


Set pitch to 0, add curve.

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