Use the Dual Covering Hub for attaching the greenhouse covering to both the inside and outside of the dome.
Two layers of Greenhouse Plastic creates a tremendous thermal barrier to the outside cold air.
The Dual Covering Hub requires a manual process to correctly attach the rings to the edges of the hub, which makes it more expensive than the Standard Hub.
This is the only Geodesic Dome Hub, known to us, that can hold a covering to the inside and outside of a Geodesic Dome.
This hub has applications for low cost shelters, and for military use. For example, you can attach a camo tarp to the outside of the dome, and an insulative space blanket material to the inside of the dome which eliminates the heat signature. The round shape of the dome appears more organic and less noticeable to radar or human sight than a square tent structure.
For more information on the Dual Covering Hub, see our video on Youtube: How to Attach a Greenhouse Covering