I'm new here and fairly new to IES. I'm currently tracing a DXF file like I normally do, however, once I changed to a different floor the room outlines started showing a thickness. Also the colour of the walls in the navigation has changed to blue instead of the usual yellow (see attachment). I would like to know how the walls changed, and whether it can be reversed, also does it have an effect on the model in terms of EPC?
Kind regards!


