This will have to be treated with something like diatomaceous earth, borates, or the like, otherwise "the creepy crawlies" will start attacking and nesting in it.
The sheep wool for roof insulation
Very doable, but harder work using round stock, but for the more rustic look, you can do that.
I was thinking to debark the with a drawknife and use them round.
That sound doable.
All cob or straw bale will be on a stonewall which is about 50 cm wide and 50 cm in height.
I like the cobb, and slip wall. The nonload bearing SB is a good idea as well. I don't like the idea of you trying to build a load bearing cobb wall. I know it can be done, I've done it, but it is by fare the least desirable of building methods. Should you have any trouble with the cobb, down comes the roof. Even traditional and historic cobbs usually have an internal structure of "wattle" and posts that the cobb is adhered to.
I think I am going to have 2 sides of cob (west and north), one side with straw bale (east - as i just want to see how they perform in Ireland) and one side cob and slip straw.
On the straw bale side I will add a layer of cob - about 25 cm to get a straight surface for the base plate. The straw bale side must not be load bearing. The cob walls should be load bearing but I would like to have temporary posts to hold the roof as I really do not trust the weather here.
. Very good idea.
The north wall gives me some headache as it is shared with the building next to it. it not a very straight wall and there are lot of loose stones but I cant take it down because the roof of the side building will come down then too. So I thought I will "glue" the wall together with cob and "straightened " it out and will have a post there for the ridge beam so that this wall will not have any additional weight to carry
I have to know more about what roofing material you are going to use before I can condone a low pitch angle on the roof. What is the main structures roof pitch and material?
The inner dimensions are: 3,5 x 4,6 cm the walls are 50 cm thick. so the building will be on the outside: 5,2 x 5,8 cm
I think I am going with the ash tree as the rhododendron might be a to big challenge for me I want to keep the roof as low as possible.
No wood in ground it will rot in most cases and twice as fast if set in concrete. You can but wood in the ground with some methods but they are more work than others. Lets get the trees down and peeled then we can discuss the "bones" of the structure and what they will stand on.
So I think first thing for me is to buy a drawknife for debarking and think about how to get the posts for the ridge beam fixed in the ground....Should I treat the wood with anything? and will I just dig out a hole, place the post and fill it up with concrete? Or are there better ways? I always have in mind that I am only renting so I do not want to sp