Despite preconceived confidence when working with Autodesk software, is good from time to time make some little comparison exercise software to see if you have similar values. In this case, related to the calculation of thermal loads, I wanted to see if the transmittance of the walls which facilitates the Autodesk wiki with documents, is the same with Design Builder.
The Wall is the chosen “standard wall construction B”
I created the same wall with Design Builder:
The comparative results are almost identical, as is obtained with Revit 0.2993 W (m² x º K) and 0.300 W Design one (m² x K).
Also commented A3D forum.