mike jastram wrote:Yep, definitely plenty of space! It's more or less north facing - I think the idea is to test the effectiveness of the earth thermal inertia without large solar inputs through the end walls.
Today was rest day so violet and i paneled the upper half of the interior walls today where insulation was exposed. Probably not much heat benefit but a big improvement in appearance! Jesse came up and insulated the door which I expect will help some as well.
10/19 7am 34/52
10/19 7pm 50/57
Just started reading about your adventure. Well done. Two things I noted in your construction. First is insulation. Years ago Mother Earth News got into underground building much like you are doing and found that moisture seepage was an issue. As the ground got moist from rain and such it became the transfer agent of cold from outside to the inside. What they found to work was creating bags of dry sand between the structure and the green earth soil covering stopped the transfer, kept moisture/dampness out and heat in. This is best done with large poly sheets as thick as you can find for durability laid down across the structure and folded up as sand is added to make a bag which was then sealed as the sides and top (just fold it over as you go on the sides and glue it with hot melt or silicon caulking should do I would think but the olds need to be complete to prevent water intrusion).
I am sure it is a thought game. There are also large yard bags, that are really large you can buy which will work as well and may be easier to do actually. A little research and thinking here will help a lot. The other is I saw you removed a lot of the bark from the logs, but left a lot as well This is a source of rot as the bark holds in moisture and allows for insects to hide. Also, once the log is debarked, charring it in flame will prevent rot where it contacts other materials. If you plan on rebuilding or starting a new construction, these points may help.