As the tiny house transitions from the design to build phase, I wanted to assemble some documentation on the house to get some more qualified eyes on the design, and gather feedback from friends/family (and to also show them that the project I never shut up about has some foundation behind it!).
The attached document is the culmination of a few years of thinking, designing, and iterating, and is meant to capture a lot of the high level decision making. There is still a lot to figure out, but will at least be guided by these decisions.
To note, I messed up the math on the costs of the different insulation technologies - I was using the cost of an 8-pack of Fiberglass Batt with the area of a single pack, so the real cost is 8x lower. This puts Batt cheaper than XPS. Additionally, Rock Wool is in a similar price range as Batt and has some additional handling and fire resistance benefits, so the insulation question is still somewhat open.
Some of the battery energy math from the previous post is duplicated in this document.
To date, the trailer, windows, and doors have been ordered, and the build space is rented.