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Forums >> Revit Building >> Tips & Tricks >> 3D Roof - Splits and Points

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Wed, Sep 25, 2013 at 3:41:23 PM | 3D Roof - Splits and Points




Joined: Wed, Sep 24, 2008
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The following is a powerful tool in the Revit arsenal for creating almost any roof for which you can draw a roof plan. This works for 45 degree bays as well as other nonstandard roofs which the Revit Algorithm draws incorrectly. 1. Create a flat roof that extends past walls to desired overhang. Uncheck "defines slope" option. 2. Finish roof 3. Draw Roof Plan using detail lines on top of roof in roof view. ( I like to give my detail lines a new color to separate them from other lines.) 4. Click on Roof and on ribbon over "Shape Editing" choose "Add Split Line" button. 5. Draw over the hip, valley and ridge lines to cut the roof into separate pieces. (Draw carefully as small mistakes in joining hips/valleys with ridge lines can create strange pieces of the roof.) 6. Calculate the ridge point elevations using the rise and run of the roof. (If a roof rises 6:12 and it is 20' from the ridge vertically to the edge of the overhang the rise will be 10') 7. On the ribbon over "Shape Editing" choose "Add Point" button, and enter the elevation on the options bar, then click to the location at the end of ridges. 8. View in 3D view. 9. You will probably have to move the roof down so that the roof sits on top of the walls. 10. If you have made mistakes on ribbon over "Shape Editing" choose  "Modify Sub Elements" Button allows you to move things and the "Reset Shape" option takes you back to the flat roof.

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