Benefits are: fewer components and larger window area. Cons are: Anything that isn't triangular won't be inherently stable. In double skin system one layer is usually the dual of the other then triangle framework is attached between skins, this will stiffen the structure. hope this helps.

@@Geo-Dome Hi paul, I am from Argentina, can I make some other questions? here or in your page? Tell me and I will copy paste. I saw most of your videos, but there are some doubts that I still have. I common see that even taking into fact that a geodesic dome structure is way more strong in comparison to a normal roof/house, people keep using thick wood planks, this does not neglect the material benefits that a dome should have? Or they choose thick and strong wood to avoid rot or other issues to extend the lifespan? A thin wood well treated with varnish or something similar would not last much? What about WPC compound, you try them before? Although they don't seem so rigid, they bend a bit more. I would love to make it from metal (my uncle has a business and makes any kind of machine with that), but I see some issues with a metal frame. If it is pipe or "T", then we have less "thickness towards the sphere center" to distribute the forces in the top of the roof for example, this could be solve with a smart a double layer but it becomes harder to design and to apply windows and thermal sealing. I know enough about thermal insulation or energy efficiency in all their forms, using tricks that I want to exploit with a new type of design, but the frame selection is still an issue, taking into account this would be for a small 2 floor house.

great stella