Massing Model Roof/ Walll Issue

[jwseas]

Hi,

 

I'm trying to create some simple massing models with gable ends. I have created a custom roof by editing the massing model. With the 'fit walls to roof' command unavailable, I have chosen the option to show the gable wall in the roof in the roof design preferences. This seems to have a set back from the wall and create a ledge. There doesn't't appear to be a way of setting the massing model wall thickness and when changing the gable wall thickness, it only sets the wall further back into the roof leaving the ledge. When looking straight on at the model, there also seems to be a physical gap between the top of the massing model wall and the gable wall.

 

If anyone can shed any light on this, it would be much appreciated.

 

James