The inside photo is impressive. What are the materials used for something like this?
Discussion
Looks like 2x4s and steel brackets.
I 3d printed custom brackets, attached the dome to 2 trampoline frames, and used a compound miter saw to custom fit the skeleton together.
I was referring to the green parts.
I don't know what you mean by the "green" parts. If you mean the color green, the "skin" is stretched re-purposed medium weight canvas drop cloth, applied with ~7k 1/2" staples, then coated 3 times with a wet slurry of Reblended paint, water, and portland cement, before the final coat of just paint with boro-silicate microsphere insulation added with 2 more coats (by far the most expensive material in this whole project at ~$1/sq ft of coverage).
IF, you are referring to "green" as in environmentally friendly, that comes from the majority of the paint, canvas, steel, and wood having come from free and salvaged sources. The two 14' trampoline frames took less than 2 weeks to find for free locally in Austin, but even new ones from Walmart are only $179 each, and is far superior than wood framing for the circular vertical walls.
Eventually, I intend to set up a styro-foam re-pelletizer so I can embed more diverted "waste" products into the vertical walls as insulation.
Okay, so it's canvas. That's all I wanted to know
Forgive me, I'm half blind 🤷♀️ (literally, I have to have my 2nd eye surgery yet)
I include the link to the book, 'Latex Concrete Habitat', the technique is adapted from in the blog post, in case you want to learn more. It's an amazingly adaptable approach, in the pics of my prototype, I actually used some bedsheets for the rectangular roof/walls, that I bought by the pound from a Goodwill warehouse. I especially liked the texture I got from the flannel bedsheet.
The blog post goes into more details and provides resources to lookup even more info on the materials and processes I used, ranging from custom designed 3d printed ASA brackets, to Japanese style woodburned treatment finished out with 3 coats of shellac, and a variation of latex cement canvas stapled like upholstery out of used painters drop cloth and free up cycled paint from the Austin recycling center.
Sorry, I didn't see a link