I have seen Spaceman's dome project and read his posts about the labor
involved in troweling or spraying pc. I believe it was you that also
had pics up of helping a friend make a geodesic pc dome with pre-cast
triangles... And yet it appears that today you are recommending
spraying a dome.
This concept of covering and spraying a dome is one that has
interested me for some time. I have a lot of experience building
domes, large yurts and hybrids, out of wood, conduit and pvc. I have
built some 2 series domes that have vertical walls - could be good
candidates for casting triangles, as the triangles are very big,
roughly 8' per side.
Can those with experience spraying pc or making pc domes offer the
benefit of your experience? Or can anyone direct me to websites or
resources where I can learn more?
If I want to get a wall thickness of at least 6 inches (it gets cold
here in CO in the winter, and I want the dome/s to be insulated),
would spraying pc on the dome be a LOT more work than casting
triangles on the ground?
I helped with a block based dome project and it took a long time -
casting square blocks, then making them into a dome by hammering rebar
stakes through the blocks and using a string to keep the distance
constant. Seems like there must be an easier way.
How thick can you spray a layer of pc?
What sprayers are available, work best, and cost what?
Would those with experience recommend sticking to casting pc on the
ground over spraying if I am interested in saving time and energy?
Where can I learn more?
Thanks!
-Eli
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