Strawbale and other thick wall assemblies modeling
I will be modeling a straw-bale house, and was wondering again what is best practice with regards to modeling to the outside or inside of the wall, specially important here given the wall thickness. In the past I have heard practitioners argue for either one: for inside, I was told that it keeps the space volume accurate. For outside of the wall, I was told that solar radiation dominates, and is thus important to model to the outside wall. Anyone care to comment? For inner partitions, I have only heard agreement (i.e. center line of wall).
You could try it all three ways (outside/middle/inside) and see how much it changes the results. My guess is very little, assuming any inputs based on floor area/volume are also adjusted.