You can now create all the layers of your roof in the Building Physics module: Waterproofing, slope, base insulation, vapor barrier and substrate.
With all layers relevant for thermal insulation, a U-value is automatically determined.
In addition, you can easily specify a target U-value and the exact thickness of the base insulation is determined automatically. This way you know immediately how thick you have to plan your insulation package.
Since the layer structure has an impact on all other modules such as drainage, insulation and fall protection, all relevant information is also transferred to these modules.