gable roof rafters and ceiling has gap. Is there a way to close up?

[Designer100]

New addtion gable roof rafters above new porch and ceiling has gap. Is there a way to close up?

Rear Porch gable. rafters and ceiling needs closed up.pdf Floor Plan -.plan

[TeaTime]

Reduce Rafter depth or increase Fascia.

 

This is a really common issue for roofs over outside rooms. It's expecting a normal room with normal walls and roof rafters that reduce in size after their birdsmouth

 

Alternatively on the Room spec, Structure panel is an option to Use Soffit Surface for Ceiling. This forces a reduced rafter throughout that room.

[SNestor]

The simplest fix is as "TeaTime" has posted..."use the soffit for surface" that is provided in the room specification. However, this will reduce the size of your rafters. 

 

Another method is to increase the size of the gable sub fascia to that of the rafter size and accordingly increase the size of the gable fascia. You should also increase the thickness of the soffit to match that of the ceiling...or, vice versa...change the room ceiling to match the thickness of the soffit.