I was my own contractor on a 3000 sq feet concrete house project. It is doable but you are not giving enough information. Cost will depend on hundreds of factors. First you would need to know where are you building and the regulations in your area. Will you need enginnering plans and permits or you have no building codes (very few places in the USA with no building codes).How much and how easy is to buy cement and associated materials and tools in your area? How much you expect to expend? What are your skills and how old are you? Is your girlfriend an engineer or designer?( I ask because she seems to be sure it will cost too much). How big of a dome you want? Are you going to use regular utilities from your county or city(extra paperwork and permits to connect to these services). Now,.. given that you get the land, have the money, the time and get the permits(if necessary), and given that you have some skills or can go slow to learn them , then yes, if it is a small project I say you could build it yourself. Most of the time you will need help. If you plan it well, there may be stages that you get hired help for specific days and tasks, and then there are other things that you can do yourself to save money, even if they take you longer. Once you get your foundation and dome built( help needed), then you can install the plumbing, electricity, walls, etc by yourself. Everything is doable. Some things just require more time, money and effort than others. If you have enough money and space to host a domegaia workshop, they might build it for you and you do your part of providing what they need. There are many options.
I think that a certification for each state would not be available because every state and county have their own regulations, and they change differently. You should contact an engineering firm local to the area you want to build and ask them how can you make the aircrete building to comply with the area you are going to build. Even a regular wood house that may be legal in one state or country, could be ilegal in another, so you have to ask this locally to your county or state requirements. You can even build some of the blocks and take them to an engineering firm to test them and give you the tensile and compressive strengh. It is better to get your local code and build around their minimum requirements than trying to convince them to accept your design.
What would a 1 foot thick dome being just AC alone, what would the R value be? Also what thickness would = 90, I just wondered because of a dome creation video I saw a long time ago.
I forgot what the main supports was but they had chicken fence wire over that and spray it with a foam that greatly expands and hardens , sure some goes through the holes, but it did the job, they said it's R-value is 90
I'm also interested in reusable forms for dome home construction. I also would be interested in an engineered design for a home that could be replicated to help spread the cost of design. The cast in place textured ceiling would be awesome!
Aquarist here - cement is not considered safe for fish, the lime content is too alkaline for them. I don't think it would be recommended to hold water for human consumption, either. There are lots of options for that including water bladders and plastic bins and towers of all sizes and shapes. If you don't want to use a liner for a pond (containing fish life) you can use a clay base to hold water in fairly well. It will seal better over time as the fish add to the bottom layer with their excretions.
Interesting points, however I would offer that Hawaii has MANY microclimates depending on island, and Big Island is probably the most diverse. The relocation to Hilo is just about 20 minutes from a rainforest where I happen to have property, and there is NO sandy soil. I believe they are located in Hilo which is MUCH warmer and sunnier. Sounds like both Hawaii Island and Puerto Rico both need solutions for low-resourced communities, but certainly if a workshop is offered in PR, I'd consider visiting!
And this will protect it in places with monsoons, or would there be additional protection needed? The stucco would have added fiber or it is manufactured in this way? Looking at aircrete material to combat the heat in the tropics. Extreme weather shifts are tricky, as is sourcing supplies!
Same curiosity here. I've worked on earthships and cob structures, and the berm is obviously considered a heavy weight, and the structural integrity of the walls to hold the berm up must be highly considered. An aircrete structure, rounded in the shape of a dome, that definitely has positive levels in the structural integrity department, but berming behind/around a dome of aircrete, I can't say.
On one of your videos, you had a form with about 12 bricks to be made at one time and then they pushed them out of the form the net day. They made curved bricks for the arched house. Do you have specs for that or can one purchase that form? I have just heard about this and am looking to make a structure on my property. I am not sure that dome (which I love) will work in the mountains of SW Virginia.