The second option in the list is toggle slope defining.
Revit flat roof with parapet.
Select an interior wall and then right click.
Offset the top by 1 9 or 500mm if your metric when you then create your roof choosing the internal core of the walls it will sit below the top of the external wall.
In the drawing area highlight an entry wall.
Get this revit file here.
Select finish roof on the create roof footprint ribbon.
On the draw panel click pick walls.
Open a 3d view to see the resulting roof elements.
The cure for parapetitus is continuity of the control layers and letting things move when they have to move.
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Click architecture tab roof drop down roof by footprint.
If the parapet is not high enough increase the offset from the top level.
From the contextual menu choose select all instances visible in view to select all of the interior walls.
Create a sloped roof with an overhang.
Where the roof slopes toward a parapet at a slope greater than two units vertical in 12 units horizontal 16 7 percent slope the parapet shall extend to the same height as any portion of the roof within a fire separation distance where protection of wall openings is required but in no case shall the height be less than 30 inches 762 mm.
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You can see the interior walls extend through the flat roof.
Max baker and stonewall jackson would be proud.
Select the lines of the roof outline and right click over the line.
On the contextual tab of the ribbon select attach and then select the flat roof.
The perimeter of the roof assembly insulation is wrapped to prevent interstitial airflow from the parapet into the multilayered rigid insulation of the field of the roof.
Your now have a flat roof.
2008 04 01 01 05 pm 3.
Tia john august 17th 2011 09 43 pm 2.
Welcome aboard cheers ian.
On the options bar for overhang enter 600 and select defines slope.
This option turns off the roof slope extrusion for the line.
Select toggle slope defining for each line of the roof outline.