Energos doesn't just look at the insulation on your walls, it looks that the entire project and looks at the properties of all of the components of your walls, slab, and roof. This means that if you want to use Energos to analyse the energy in your building you have to set up your project correctly. Walls have to be drawn correctly, rooms have to be connected to the walls, and slabs have to be properly constructed. Of course this is using common BIM principles so setting up the project should also include making sure that your stories, layers, and levels are also well considered. It might seem like this is a lot of work to set up a project, but these are the things that you should be doing already because using these BIM principles will speed up your workflow from concept to contract documentation.