General Geodesic FAQs

Sonostar General Geodesic FAQs
What does the ‘frequency’ refer to? Most geodesic domes you see are variations of 'icosahedrons'. All the sonostar domes are derived from icsosah...
Tue, 29 Dec, 2020 at 6:14 PM
What does the ‘frequency’ refer to?
Most geodesic domes you see are variations of 'icosahedrons'. All the sonostar domes are derived from icsosahedrons and they all have 6 pentagons ...
Tue, 12 Jan, 2021 at 4:35 PM
Do I need to glue the joints together?
The short answer is no.  You can use the stainless steel nuts and bolts included in the kit without glue.  If you don't want the nuts and bolts, we sti...
Tue, 12 Jan, 2021 at 4:44 PM
Can I attach metal poles to Sonostar geohubs?
We’re aware that many users have used steel, aluminum, wood, bamboo, and other non-pvc materials. The hubs were designed to be used with schedule 40 PVC, an...
Tue, 12 Jan, 2021 at 4:44 PM
What sizes do the hubs come in?
We started with ½” hubs, and then we started getting a lot of requests for larger sizes. Several years ago, we brought out the 'Megahubs', that ac...
Tue, 12 Jan, 2021 at 4:47 PM
Is 1/2" the size of the inside or outside diameter?
Good question. As for the hubs, it's neither. PVC pipe is measured based on the inside diameter, because they use it to measure the air or water volume...
Tue, 12 Jan, 2021 at 4:47 PM
I glued the wrong size strut into a hub. What should I do?
All is not lost. One of the really great things about working with PVC pipe is that it's easy to cut and glue. So in this case, if the strut was too lo...
Tue, 12 Jan, 2021 at 4:49 PM
How long does it take to build a dome, using the Geohubs?
The first time you build a dome will be the longest it will ever take. That’s because the concepts are new, and inevitably you’re going to mess up and put t...
Tue, 12 Jan, 2021 at 4:51 PM
Is there a recommended cover for the dome?
We're glad you’re thinking about this before you build your dome. There’s a lot of alternatives, based mostly on the intended use. The easiest and leas...
Tue, 12 Jan, 2021 at 4:52 PM
How much does a dome weigh?
This obviously depends on the size of the dome and the frequency. PVC is strong and lightweight, but get enough of it and it adds up. A ½” 2V dome of 10’ di...
Tue, 12 Jan, 2021 at 4:53 PM