Residential Benchmark & Materials

I’m going to dive in and try to make a Building America Benchmark (B10) and I’m curious about how to go about making the benchmark constructions & materials. I’m searched on this forum and Unmet Hours and everywhere in between and I don’t seem to have a definitive answer.

Is there a downside to modeling the materials as “NoMass” and just utilizing the R Values for the walls, floors, ceiling, etc? I know that means there’s no heat transfer, but in the average house, is that an issue?

There’s nothing in the 2014 Building America House Simulation Protocol about which way to build it. Or if there is, I missed it. A search through the document only mentions “steady-state” for the HVAC.