posted 11 years ago
Hi Paul,
Sorry for not getting back to this post before now. I will use your list of "that I want to do better next time:"
569) Attachment methods:
To answer your question towards Miles about hogans, "What would I gain?" Geometric strength in design with traditional joinery methods and an alteration in material dimensions. On the note of traditional joinery, that would be a good way to avoid those expensive fasteners. For your cladding logs, they could be pegged on, lashed on, or even sewn on (of a fashion), but of these lashing would be the fastest, with pegging a close second. Your idea of having the mass of the earth hold things in place is possible, but should there even be a small seismic event this could lead to catastrophic fails without the monolithic attachments of some type, either traditional or modern. I definitely agree you can lessen the financial out lay in fasteners.
570) Blocking view of wrapping material:
From grass reeds, to a good cob layer (maybe augmented with lime) or even clay chip or clay straw, (which would add an insulative layer) would all be good alternatives. There are others but these are the first that came to mind, that also seemed like the best. Others include, cardboard, new paper, paper, recycled carpet (nice 100mm to 200mm thick layer of it), etc.
571) Wings:
Not flaring the wings sounds like a good idea, and would make your joinery easier to facilitate.
572) Bark:
Hmm, well that could work, and yes the bark could (or might fall off depending on species of conifer) but you could also get a really healthy infestation of stag horned beetles (or related Cleopatra ssp) as well and that would not be recommended considering the load these wood members take, including the cladding logs.
573) Earth layer:
I agree the dryer the better.
Any other ideas?
Yes, a big one for me is not burying your post in the ground, but creating a sill or knee wall assembly that the frame work would be attached to or part of. I can think of several methods all strong enough to take the lateral shear loads and moment connective loads from the back fill. Perhaps even a "boxing" method that would include a wood floor system that could facilitate easy access to plumbing and wiring should you choose to have it. My main reason for getting the wood isolated from direct contact with earth is potential for infestation of termites into the frame assembly, as well as extending the life span of your architecture.
Since you have the mill, perhaps flattened or planked wood and some timber framing? I had a really big thing for "mine timber work" as a kid and really study obsessively the different methods of doing timber work in mines for shoring and and strengthening wall systems. You get that wood isolated from the earth, upgrade the layering system to really have some redundancy and I think you could build something that would easily last multiple generations. I also think there is a book in this concept and modeling of yours...would love to write it someday.
Warm Regards,
j