Covering a Geodesic Dome w/ Poly Iso.

[lemondealc]

Making some progress covering the dome with poly iso board. This is a 2V dome, 17ft in diameter, which is what i typically build because the longest struts are 5ft long. 

The insulation board usage was really efficient. I cut the board in thirds (lengthwise) and then cut each of those in diagonal. These pieces were taped together.

To get the triangle to fit in the panel, i first cut about one inch off the top. Then i placed the panel in place on the dome to mark how much of the bottom i need to cut off. This varied from 1.75 inch to just 1 inch.

The PVC pipe is one inch and insulation board is 1inch so it sits flush with the pipe. I make further adjustments by cutting off the bottom corners to get the bottom passwd the hubs. Then i tape it in place.

I plan on making a more detailed video once I complete the dome, but here is a link to a youtube video of just the top as it was covered in the mean time.

https://youtu.be/i2R_FUb4wMc

Let me know what you think....

[Hal Muskat]

If what faces the elements is poly iso, and you are in a climate that gets rain, unless you are beneath protection, you may have a fail. 

Poly iso insulation was NOT made to be outside a structure, but between siding & drywalls.

Would love to hear how your project turns out. One hexayurt of which I’m aware, placed outside in Sonoma County, CA, didn’t make it through the winter. 

Peace & Health, Hal

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