How to Model Asymmetric Wall
In OpenStudio, if I wanted to model a surface separating two spaces that has an asymmetric construction of the following type:
- 1/2" Sheet Rock/Gyspum
- 4" Stud Wall with insulation
- 8" Light Concrete Block Wall
Is there only one way to model this in EnergyPlus? Would I have to create one construction type and assign it to one surface and leave the matching surface blank in OpenStudio? Or could I make two construction types, for example:
Construction Type 1(reversed so stud wall is exterior and sheet rock is interior): 1. 4" Stud Wall with insulation 2. 1/2" Sheet Rock/Gyspum
Construction Type 2: 1. 8" Light Concrete Block Wall
And assign Construction Type 1 to one surface and the other Construction Type to the other? Would this result in a valid simulation? This situation is very common/default in the buildings I work with.
I see value with both approaches, but I would like to make sure they are both valid.
Comments
In addition, when I am modeling a whole floor of a building, I am not sure what the workflow should look like for many rooms with asymmetric walls adjacent to other spaces. I noticed that when I created an asymmetric wall construction and applied to both walls, one wall received the REVERSED attribute, and other didn't. This did not affect the U-Value, but did affect the Reflectance value. I am not too concerned with the reflectance value, but I would like to create a good/correct model. Any feedback?
It seems that the data inheritance for construction sets doesn't account for specifying which space will contain which exterior/interior wall. So unless, I am missing something, I will have to manually go through each space and leave one of the wall construction types blank, so that that surface's wall receives the REVERSED wall construction.