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Forums >> Revit Building >> Technical Support >> Need Help with roof around bay
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Joined: Tue, Jul 21, 2009
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Sorry if this has been discussed elsewhere, I couldn't find anything. Attached are 2 files, the first showing the roof I need to end up with, the second showing how revit draws that same roof. Can anyone tell me the best way of drawing this roof. I can't get revit to draw it the way I want if I use one roof. If I draw it as different roof sections, not only is it a pain in the butt, the fascia & gutter wont connect. Please help with the best way of drawing this roof.
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OK, so I'm still a newbie,and appreciate all the help here. I found the solution. Attached is what revit was doing when I adjusted the slope of an individual roof slope while trying to do it all in one footprint. The solution has to do with how you pick the lines. I was using the 'pick wall' option with an offset, but when you adjust the slope you get the result in the attached file, since it adjusts the slope from the original wall, not the fascia line. So I had to redraw the roof footprint, but use the draw line option, not the pick wall option. Hope this helps someone else.
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I think fascia and gutters work best (cleanup) when they are part of the same roof. Didn't do any testing on mitering gutters on joined roofs. . . . . I think I was able to acheive what you want by keeping the roof a one object and adjusting the slope of the front edge to make it steeper. The main roof is 7/12 and the front is 9.5/12. You have to play with the slope(s) depending on the actual dimensions of your roof rootprint. See attached images. . . . . and now I see you have already replied. So YES creating a roof by 'picking walls' and 'by linework' creates different results mainly in elevation of the roof soffit. By 'lines' makes the bottom of the roof line up vertically with your current work plane. By 'pick walls' lines the bottom of the roof up based on the roof slope, overhang and workplane. So in your case by using the 'lines' method your roof has been raised up and you probably need to lower it's elevation.
Edited on: Fri, Oct 2, 2009 at 12:54:53 PM
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Having a closer look at the lower intersection of your roof planes I don't think your roof is correct? See atached image of 'funny' areas.
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Thanks for your help dgcad. Still lots to learn for me, and I come here often to look for answers. Yes you are right, and that is why I was asking for the help. The file attached is what I was getting originally, when I tried adjusting the slope of the roofs with the 'pick wall' offset. It raises the fascia on the lower sloped walls because it is taking it's pitch point from the wall and not the line of fascia, which creates the odd fascia shown. This is definitely not the roof I was wanting to create. It is a totally different story when drawing the lines independent of the walls. Something good to know, as I have been struggling with roofs not lining up like I thought they should, and this has probably been my problem all along. The method of creating the roof footprint lines is very important to the outcome. Perhaps it would make some sense to indicate somehow the difference between them, maybe a different color, since especially after they are created it is easy to forget the imput method, which makes all the difference when dealing with height above plate.
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Exactly. Lesson No 1 when learning roof by footprint methods. It's all covered in my REVIT Basics series here > http://www.myvbooks.com/cadclipsstore/stores/1/Revit_Architecture_2010_-_Basi_P186C24.jsp May save you many hours of struggling because I already did the struggling for you. Floors work in a similar way too. Anytime you have the option to 'pick walls' (roofs, floors, pads...) the resulting object is different from sketching lines.
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