Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I'm a BE Consultant and this post piqued my interest in how Design Builder handles this complex phenomenon. As I suspected, it seems to be extremely limited to the least significant mode of moisture migration through building enclosure assemblies (vapor diffusion). If you want a more realistic assessment of moisture dynamics and it's impacts on thermal conductivity and material durability/mold growth, you should have an experienced building scientist run a WUFI model for you. WUFI includes air leakage, wind-driven rain, capillary action, night-sky cooling, solar radiation, etc. into it's analysis and has been field-verified by labs all over the world.
