It might be a minor impact, but I'd suggest defaulting to a 2ft belly for mobile homes. That's what OS-HPXML does (see here).

Building ID = 10 (Geometry Stories = 21).
geometry_unit_height_above_grade = 0, 8, ..., 152, 160.

It might be a minor impact, but I'd suggest defaulting to a 2ft belly for mobile homes. That's what OS-HPXML does (see here).

Hmm maybe we were already defaulting to the 2 ft for Mobile Home w/ Ambient foundation type?

After talking a bit with @joseph-robertson, my initial reaction is that the heating energy (natural gas) goes up large enough that I might suggest we assign some value to the argument based on height. I am a little hesitant is that our modeling of large MF buildings is sort of limited right now.

@asparke2 : I wanted to let you know that we are considering using a new capability in OS-HPXML for multi-family units that are located above ground level. This would allow us to assign a height of the unit that impacts windspeed and resulting load due to infiltration. This is just to inform you of Multi-Family-related things coming down the pipeline as we plan the Multi-Family work.

What about the space (height) between floors? We should look at what OS-HPXML does, and whether we should consider, e.g., plenums, etc.

@joseph-robertson : The differences are relatively small and have diminishing returns as the height increases. Let's not include the distance between floors.