Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
To my best understanding the results you are seeing make sense and depend on many other factors you didn't mentioned (apart of the U factor and infiltration factors like solar heat gain and internal gains are crucial). So free running model's temperature make less sense as a benchmark.
If you are after telling which construction would work beter in the sense of energy consumption then I belive you should consider using the ideal load air system which will let you compare the energy needed to maintain the models' thempratures in the comfort zone.
