Revit Wont Cut Dormer Roof

I have a roof that i have cut for a major gambrel dormer that is identical on both the front and rear of the building.

Revit wont cut dormer roof.

Change the visual style back to shaded to show the finished item as in. I want to eliminate of the dormers. When i erase the dormer walls and roof i have the hole in my roof where the dormer was located. The pick roof wall edges tool is active so that you can pick the boundaries that compose the dormer opening.

I made the dormers and the dormer openings the same way but on the rear of the building one line of the cut profile only seems to cut the roof in the vertical direction instead of both horizontally and vertically as all the other cut profile lines do. If so how do you do it. Select the dormer cut and then select the edit dormer opening from the ribbon as shown in figure 8. It can be as little as 1 128.

Next the walls need to be moved to the roof line to create the dormer. I cant seem to select the hole to remove it. If the 2 edges are far enough away from each other it works fine. On the properties palette set the top constraint for the walls to unconnected and specify a height of 4000.

Watch the status bar to be sure that you are highlighting the main roof. Place the cursor in the drawing area. I m not sure if you got this roof to join but here are a couple tricks to try. Select the wall tool and choose a wall from the type selector.

Edit the dormer opening to reflect the roof modification as per figure 9. You can also create the dormer with a two cut plumb and the fascia depth set to zero so that the dormer has a flat. I placed two dormers in a gable roof and used the dormer opening tool to cut out the roof at the dormers. When that edge on the dormer gets too close to the same edge on the main roof the opening cut fails.

Place the 3 walls in the plan view. This tutorial explains the process to create a gable dormer in revit. Seems to be a geometry solver problem with the edges of the 2 roofs where the 2nd slope meets. If you make the dormer roof with a very slightly bigger overhang than the main roof it will then join to the main roof.