Logan Jonker wrote:Prep-
I own about 9 acres of land in Missouri. I bought a trailer to put on the property for my family of 7, now 8. 2 Years ago, we built a 30x16 addition to add some room and a hallway attaching it to the trailer.
Our intention was to build the rest of our home, a piece/section at a time, removing the trailer once enough of the house was completed.
We've been considering Straw bale, cord wood and last year I learned about Wofati.
We've got the wood and the dirt and the time and the land, so we are looking towards a Wofati hybrid.
Right now, I've got the trailer and the addition in the way. I plan on building around/integrating the addition. I plan on placing the posts and the roof in a way to pull the trailer out through an opening in the wall.
What would be the best way (cost and durability) to attach the posts to the piers?
I am looking at incorporating a shipping container into the structure to function as a storage/hallway/storm shelter inside the building.
What would be an option for building the Wofati a section at a time? Or will it have to be built all areas at once?
I am working on some initial plans and budgets right now.
Logan Jonker wrote:Thanks for the response: a couple more bits-
Our land is flat, so we'd be doing a more of a hybrid or Wofati and Ohler's flat land design. The reason I want Wofati is because of we don't have the straw or $3 a bale (+) for straw and I am a little undecided on the cord wood, traditional build- might incorporate the Cord/Bales on the exterior walls that aren't bermed (not sure if that is the correct term for the wofati design of the dirt on the walls where the roof meets the ground)
The other aspect of the hybrid may be that I don't use the full 32 inches of earth on the roof.
Shipping Container: I was looking at having it run North to South like a spine through the structure, so maybe a 40 foot. There are 8 of us, plus my in-laws, plus if we have any guests. We've been here 3 years without a storm shelter so incorporating it would add some peace of mind. Yes, I was thinking of having it partially supporting some of the weight of the roof. We wouldn't be replacing the trailer with the container, though. I had not heard of them getting crushed- even with just 2 feet of earth above it? Might have to look at some other options- just don't have 6 grand for a 4 person storm shelter.
Stick Built Addition- It was designed to go two stories- right now it has a flat roof and is single story. It should support the wofati roof, But I plan on extending some of the wofati over it, so It would support all that weight.
Heating- Out addition is insulated well, not much temp change- Our Trailer leaks like a sieve. It is a repo, bad condition and the previous owner had done a number on it. It's OK for now, but not the long term and apparently it may have come from the south as there is no sheeting between the framing and the exterior metal covering. I assume the overall Wofati design doesn't need heating and cooling with the Annualized Thermal Inertia, but If I cut back , I can manage it rocket technology and natural cooling.
The part at a time would be helpful to build enough, yank out the trailer to free up construction area and then continue building.
The trailer provides kitchen and bathroom till you build replacements then pull it out. That was my thought for my build too, but I would leave the trailer outside or in a barn. In my case I am thinking RV, you may have a mobile home? I want to go wood heat/cooking in the long run... my hope is to be able to get by with just enough wood to cook and then harvest the exhaust for mass heating.
BTW, part of using Annualized Thermal Inertia, is learning to live with some temperature swing through the seasons. Acclimatizing the body to live cooler or warmer... dressing warmer when needed. If you have family who expect 72F year round, they will not be happy without heat. My thoughts on this are that much of the home can cycle through the season, but that there should be a main room that has a warm mass that people can sit around to eat and or relax. A warm stone put in the bed a half hour before use will get it warm and the body will keep it that way if the quilt is thick enough. I guess what I am saying is that there is a life style change. Be prepared for it. I am looking forward to it and the kids are too. We will see what my wife thinks as we progress, she claims support, but I will have to make sure she is comfortable more than anyone else.
Logan Jonker wrote:Thanks for the Response-
Storm Shelter- Are you familiar with the F5 tornado that hit Joplin, Mo in 2011? That's an hour south of us- I've actually lived within an hour of 3 different F5's in my life and several smaller storms. The Wofati design does offer the natural hill protection that resists wind damage. Oehler comments in his book about the fallout shelter aspect of his designs.
My kids are a bit nervous during storm season- Having a shelter within the structure for safety would be nice. Our land doesn't offer the option for a simple cellar- the land is mostly sandy soil with a sandstone bedrock about 6-8 feet down, so when it rains, the water level rises, yet drains away very quickly. "Floating" the structure at the surface offers the best chance for natural building, but having a safe place within the safe place is necessary. As well as offering storage, I thought a Shipping container would be comparable to some other makeshift options I have heard about.
We are learning to deal with the temp shift as it is now, but having insulation from the natural design will help. Having just the 3 inches of insulation in our addition makes it so much more comfortable during weather shifts and we compensate, more clothes, less clothes, so with this new structure, I anticipate minimal heating and cooling will be needed.
Jason Learned wrote:You could build an earthbag dome or a rounded curved berm facing south. Domes or a rounded berm man-made hill let the tornado pass over. Flat surfaces are what catch the wind and offer an area for the force to push and push over. You could dig out a long pond on the south side and use the dirt to fill the bags to make your shelter. Designed right you should have a nice home and a storm shelter that you can add onto a section at a time. You could look at this or many other sites like this to get an idea of what can be done. http://www.earthbagbuilding.com/articles/riceland.htm
Use your pond to raise extra food and provide double light to heat your home and grow your garden.
An interesting thing happened today while looking through lots of earthbag designs and projects. I noticed a lot of earthbag dome construction and so decided to look at one. Mainly because they all looked quite small. The story showed the building being built, complete with the smiling designer outside the finished building. Then there was a letter from someone who had gone to the site to see it a few years later, they sent a picture of an abandoned building with various plant life growing out of an obviously unlivable building.